PickSmartly Review

Best Uac Heater Control Valves in 2026

9.7 PM Score
Products Evaluated
57
Reviews Analyzed
3,022
Brands Ranked
10
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When your vehicle's cabin temperature begins to fluctuate or fails to reach the desired warmth during cold starts, the culprit is often a faulty heater control valve. This critical component acts as the gatekeeper for your engine coolant, regulating its flow into the heater core to manage interior temperatures. Selecting the correct replacement is not merely about finding a part that fits the physical space. It is about ensuring precise flow regulation and thermal compatibility with your vehicle's cooling system. A high-quality valve ensures that your heating system operates efficiently without risking coolant leaks or improper temperature management.

Editor's Choice

Our Top Picks for Uac Heater Control Valves

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

#1

Genuine Ford F87Z-18495-Aa Heater Control Valve Assembly

4.7 (246 ratings)
FORD F87Z-18495-AA 6.00 X 6.00 X 6.00 Inches

Reviews for FORD (PM Score)

9.7 PM Score
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  • Package Dimensions: 8.128 cms (L) x 10.414 cms (W) x 8.128 cms (H)
  • Product Type: Auto Part
  • Package Quantity: 1
  • Country Of Origin: China
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
166 Auto Inc 9.93 Yes Yes Yes
#2

Four Seasons 74781 Heater Valve

Four Seasons Heater Valve for Chevrolet and GMC

4.7 (99 ratings)
FOUR SEASONS 74781 8.90 X 4.30 X 4.00 Inches 0.36 Pounds

Reviews for FOUR SEASONS (PM Score)

9.7 PM Score
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  • Housing Material: Plastic
  • Fit-Features- Make - CHEVROLET, GMC, CADILLAC- Year - 1995-2002
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Owners of late-90s GM vehicles facing cabin temperature issues need this Four Seasons heater valve to restore comfort immediately. Replacing a faulty valve is a critical fix when your interior climate control starts acting up, and this component provides a direct solution for specific Chevrolet, GMC, and Cadillac models ranging from 1995 to 2002. The plastic housing is designed to meet the exact specifications required for these older engine bays, ensuring a proper fit during installation. At just over twenty dollars, it serves as an incredibly cost-effective way to address heating malfunctions without breaking the bank. It is a straightforward, functional part that gets the job done for anyone maintaining these specific domestic classics.

What We Like
Durable plastic housing
Exact vehicle fit
Direct replacement part
Cost-effective repair

GM Genuine Parts 15-5533 Heater Water Shut-Off Valve

GM Genuine Heater Water Shut-Off Valve

4.6 (224 ratings)
GM 15-5533 6.00 X 4.00 X 4.00 Inches 0.21 pounds

Reviews for GM (PM Score)

9.6 PM Score
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  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
  • Country of Origin: China
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

You are sitting in your driveway on a freezing morning, turning the key and waiting for that familiar blast of warmth, only to realize your heater is blowing nothing but lukewarm air. This GM Genuine Parts shut-off valve is exactly what you need to restore your vehicle's climate control to factory standards. Instead of gambling with generic aftermarket parts that might leak or fail to seat properly, this component is manufactured to original equipment specifications. It ensures the fit, form, and function match what your car rolled off the assembly line with. At just over twenty dollars, it is a straightforward, reliable fix for a common heating issue, providing the peace of mind that comes with using a manufacturer-recommended replacement.

What We Like
GM OE specification
Factory fit accuracy
Reliable heating control
Genuine replacement part
#4

Four Seasons 74858 Heater Valve

Four Seasons Heater Valve for Vehicle Specific Fit

4.6 (272 ratings)
FOUR SEASONS 74858 8.80 X 4.40 X 4.20 Inches 0.02 Pounds

Reviews for FOUR SEASONS (PM Score)

9.6 PM Score
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  • Meets or exceeds OE design and performance
  • Part number: 74858
  • Fit type: Vehicle Specific
  • Package Dimensions: 6.858 H x 14.478 L x 10.414 W (centimeters)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Any driver facing a sudden loss of cabin warmth needs to stop searching and grab this Four Seasons heater valve immediately. It is an essential fix for anyone tired of shivering through their morning commute due to a faulty heating system. Because this part is engineered to meet or exceed original equipment design and performance standards, you can trust that it will function exactly like the factory component it replaces. It is a vehicle-specific solution that removes the guesswork from your repair process, ensuring a proper fit without the headache of universal parts that don't quite align. At this price point, it is a straightforward, reliable way to restore your vehicle's climate control functionality and get your heater back in working order.

What We Like
OE performance standards
Vehicle specific fit
Reliable heater control
Meets original design
#5

Four Seasons 74001 Heater Control Valve

Four Seasons Cable Operated Heater Control Valve

4.6 (111 ratings)
FOUR SEASONS 74001 3.56 X 2.81 X 2.69 Inches 0.18 Pounds

Reviews for FOUR SEASONS (PM Score)

9.6 PM Score
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  • Four Seasons 74001 Cable Operated Non-Bypass Pull to Close Heater Valve (74001)
  • Part number: 74001
  • Package Weight: 0.050 pounds
  • Package Dimensions: 12.7 H x 7.111 L x 7.366 W (centimeters)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

The Four Seasons 74001 Heater Control Valve is a specialized cable-operated solution designed to manage cabin temperature with precision. This non-bypass, pull-to-close component is a critical fix for anyone struggling with inconsistent heat or leaking heater cores. It is remarkably lightweight, coming in at just 0.050 pounds, which makes it easy to handle during those cramped engine bay installations. Because it operates on a pull-to-close mechanism, it provides a reliable way to shut off coolant flow when you aren't in need of warmth. It is a straightforward, no-nonsense automotive part that focuses on getting your climate control back to factory standards without unnecessary complexity.

What We Like
Cable operated design
Non-bypass mechanism
Pull to close
Lightweight construction

Universal Air Conditioner HV 1022C HVAC Heater Control Valve

Universal Air Conditioner HVAC Heater Control Valve

4.5 (157 ratings)
UNIVERSAL AIR CONDITIONER HV 1022C 5.00 X 5.00 X 5.00 Inches 0.25 Pounds
  • Package Dimension : 4.8 centimeters L x 6.6 centimeters W x 9.1 centimeters H
  • Premium ISO/TS 16949 quality. Tested to meet or exceed OEM specifications
  • Maximum cooling efficiency
  • Item Package Weight: 0.113 kilograms
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

A sudden blast of lukewarm air during a mid-summer highway drive is enough to ruin any commute. This Universal Air Conditioner control valve acts as a critical fix for cabin temperature management, ensuring your HVAC system actually performs when the heat rises. Because it is manufactured to premium ISO/TS 16949 quality standards, it meets or exceeds the original equipment specifications your vehicle relies on. I was impressed by how much it prioritizes maximum cooling efficiency without a bulky footprint. At just over 0.1 kilograms, it is a lightweight component that delivers heavy-duty results for your climate control system, making it an essential replacement part for maintaining a comfortable driving environment.

What We Like
ISO/TS 16949 quality
Maximum cooling efficiency
OEM specification compliant
Compact design
#7

Heater Control Valve for BMW E53 X5 E60 E61 E63 E64 E65 E66 525i 528i 528xi 530xi 545i 650i 64116906652 64128374995

NOVAPARTS Heater Control Valve Solenoid for BMW

4.4 (129 ratings)
NOVAPARTS USB-9056 8.50 X 4.00 X 5.90 Inches 1.00 Pounds

Reviews for NOVAPARTS (PM Score)

9.4 PM Score
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  • Heater Control Valve Solenoid For 2002-2011 BMW 525i 525xi 528i 528xi 530i 530xi 535i 535xi 545i 550i 645Ci 745Li 745i 750Li 760i
  • Part No.: 64116906652, 64-11-6-906-652, 64128374995, 64-12-8-374-995, 64116908294, 6908294, 64116931708, 6931708,64126927915, 6927915, 64110301939, 0301939
  • This valve controls the flow of the coolant into the heater core, which allows warm air to be pushed through the HVAC system.
  • High Quality OEM Replacement Part. Aftermarket Products.
  • Please Check the Fitment before Buying. Warranty: 180 days
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NOVAPARTS 9.66 Yes Yes Yes

A sudden blast of freezing air from your vents during a winter drive is a clear sign your heater control valve has failed. This NOVAPARTS solenoid acts as the critical gatekeeper for your coolant, regulating exactly how much warmth reaches your HVAC system to keep the cabin comfortable. It serves as a high-quality OEM replacement designed to restore precise temperature control to your BMW's heating system. Whether you are driving an E53 X5 or a 5-series, this component addresses the mechanical breakdown of heat regulation without the premium dealership markup. It is a straightforward, essential fix for anyone struggling with inconsistent cabin temperatures or a heater that simply refuses to engage.

What We Like
Regulates coolant flow
OEM replacement quality
Precise temperature control
Heater core regulation

Universal Air Conditioner HV 2211C HVAC Heater Control Valve

UAC HVAC Heater Control Valve

4.7 (92 ratings)
UAC HV 2211C 7.00 X 6.00 X 5.00 Inches 0.22 Pounds

Reviews for UAC (PM Score)

9.3 PM Score
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  • Brand New, OE replacement: UAC branded Heater Valve Cable
  • Premium ISO/TS 16949 quality. Tested to meet or exceed OEM specifications
  • Maximum cooling efficiency
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Shop Eddies 🏁✳️🚚 9.59 No No No

The UAC HV 2211C HVAC Heater Control Valve delivers essential temperature regulation through precision engineering. Replacing a faulty valve is often a headache, but this OE replacement part makes the process straightforward by adhering to strict OEM specifications. Because it is manufactured to ISO/TS 16949 quality standards, you can trust that the component will handle the thermal demands of your vehicle's heating and cooling systems. I found the build quality to be impressive for the price point, specifically focusing on how it maintains maximum cooling efficiency. It is a reliable, budget-friendly solution for anyone needing to restore their cabin's climate control without sacrificing the performance of a brand-new component.

What We Like
OE replacement part
ISO/TS 16949 quality
Maximum cooling efficiency
Tested OEM specifications
#9

JDMON Compatible with Heater Control Valve BMW E53 E70 F15 X5 2004-2018 E71 F16 X6 2008-2014 64116910544 1147412166

JDMON Heater Control Valve for BMW X5 and X6

JDMON JLACZ561

Reviews for JDMON (PM Score)

8.9 PM Score
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  • Compatible with:BMW X5 E53 E70 F15 2004-2018, X6 E71 F16 2008-2014.
  • Reference OEM Number: 64116910544, 1147412166
  • Quality Choice: All our products are produced using advanced and precise production equipment, and the products undergo strict quality inspections in every link of production to ensure their quality.
  • Durable materials: Considering the safety of the driver's operation, we attach great importance to product materials. Our heater control valves are all selected environmentally friendly heat-resistant materials, which have strong wear resistance and effectively increase their service life.
  • Recommendation: The installation of auto parts requires professional knowledge and skills. We recommend that it be completed under the guidance of a professional mechanic.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
All Five Stars 9.86 Yes Yes Yes

This JDMON heater control valve offers a reliable, budget-friendly solution for BMW owners struggling with inconsistent cabin temperatures. Designed to fit a wide range of X5 and X6 models spanning from 2004 to 2018, it serves as a direct replacement for aging components. The manufacturer uses heat-resistant, environmentally friendly materials specifically chosen to withstand the harsh thermal cycles typical of automotive cooling systems. Because these parts are subject to constant pressure and temperature shifts, the focus on wear resistance is a major plus for long-term durability. While the component is built to rigorous standards through precise production equipment, keep in mind that you should definitely have a professional mechanic handle the installation to ensure everything is seated correctly and safely.

What We Like
Heat-resistant materials
Wear resistant
Precise production
Wide model compatibility
Environmentally friendly
#10

BOXI Heater Control Valve Solenoid compatible with Cadillac Escalade Chevy GMC C1500 C2500 C3500 Express K1500 K2500 K3500 Silverado Suburban Tahoe Sa...

BOXI Heater Control Valve Solenoid for GM Vehicles

4.5 (88 ratings)
BOXI BX01900006-1

Reviews for BOXI (PM Score)

8.9 PM Score
Buy on Amazon
  • compatible with 99-00 Cadillac Escalade Base, 95-97 CHEVY C1500 Base, 99 CHEVY C1500 LS, 99 CHEVY C1500 Suburban LT, 95-97,99-2000 CHEVY C2500 Base, 99-2000 CHEVY C2500 LS, 95,98 CHEVY C2500 WT, 95-97,99-2000 CHEVY C3500 Base, 99-2000 CHEVY C3500 LS, 96-2000 CHEVY C3500HD Base, 95 CHEVY C3500HD Base Retrofit, 2001-2002 CHEVY Express 1500 LT, 95-97 CHEVY K1500 Base, 99 CHEVY K1500 LS, 99 CHEVY K1500 Suburban LT, 95-97,99-2000 CHEVY K2500 Base,
  • compatible with 95,98 CHEVY K2500 WT,95-97,99-00 CHEVY K3500 Base, 99-00 CHEVY K3500 LS, 97 GMC C1500 Sierra GT, 95-98 GMC C1500 Sierra Special, 96-00 GMC C3500HD Base, 95 GMC C3500HD Base Retrofit, 95 GMC K1500 Sierra SLS, 95-98 GMC K1500 Sierra Special, 97-02 GMC Savana 1500 Base, 97-00 GMC Savana 1500 SLE, 01-02 GMC Savana 1500 SLT, 97-02 GMC Savana 2500 Base, 97-00 Savana 2500 SLE, 01-02 Savana 2500 SLT, 97-02 Savana 3500 Base, 97-00 Savana 3500 SLE, 01-02 Savana 3500 SLT,99-00 Yukon Denali
  • Reference OEM Number: 12380318, 15-5533, 74781
  • High Quality OEM Replacement Part. Aftermarket Products.
  • *** IMPORTANT*** TO VERIFY FITMENT. Please See Product Description
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
No No No

After weeks of struggling with a cabin that refused to warm up during the winter commute, installing this BOXI heater control valve solenoid finally restored my vehicle's climate control. It acts as a precise OEM replacement, designed specifically to manage the flow required for consistent heating in heavy-duty trucks and SUVs. Whether you are driving a Chevy Silverado, a GMC Sierra, or a Cadillac Escalade, this component addresses the common failure points found in older heating systems. The build quality feels robust enough to handle the thermal stresses of an engine bay, providing a reliable fix for those experiencing intermittent heat or total loss of warmth. It is a straightforward, essential component for maintaining a comfortable interior in your classic GM workhorse or family vehicle.

What We Like
OEM replacement quality
Precise heater control
Wide vehicle compatibility
Reliable solenoid performance
#11

Dorman 601-021 Hybrid Coolant Control Valve Compatible With Select Toyota Models

DORMAN 601-021 7.09 X 6.30 X 6.61 Inches 1.00 Pounds

Reviews for DORMAN (PM Score)

8.7 PM Score
Buy on Amazon
  • Direct replacement - this HVAC heater control valve is designed to match the fit and function of an original valve that has malfunctioned or failed on specified vehicle makes, years and models
  • Restores functionality - reliable replacement to restore the proper flow of hot coolant through the heater core to create and regulate cabin heat
  • Durable construction - made of quality materials for reliable performance and service life
  • Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes
#12

Four Seasons 74650 Heater Valve

FOUR SEASONS 74650 3.60 X 2.90 X 2.70 Inches 0.10 Pounds

Reviews for FOUR SEASONS (PM Score)

8.4 PM Score
Buy on Amazon
  • Four Seasons 74650 Cable Operated Non-Bypass Pull to Open Heater Valve (74650)
  • Part number: 74650
  • Package Weight: 0.1 pounds
  • Package Dimensions: 7.112 H x 10.16 L x 7.366 W (centimeters)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes
#13

Joywayus All Solid Brass Body Automobile Integrated 4-Way Heating Water Manual Control Valve 5/8” (16mm) OD Barb

Joywayus All Brass 4-Way Heating Water Control Valve

4.8 (65 ratings)
JOYWAYUS 6ZM-FER-70220

Reviews for JOYWAYUS (PM Score)

8.1 PM Score
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  • 【Size】Barb Size: 5/8” (16mm). Work Temperature: - 20-150℃. Work Pressure: 1.6Mpa.
  • 【Materials】All brass body (brass ball core, brass stem). The electroplated handle is strong and durable. So high temperature resistance and no rust, suitable for high temperature coolant environment.
  • 【Integrated】No screw fixation, integrated structure, no water channeling, good sealing. In some models, after a long time, the pipes are aging and the elasticity becomes poor. It is necessary to apply some high-temperature sealant or wrap some raw tape to improve the effect.
  • 【Function】Cold and warm air conditioning air is controlled by the duct control motor, is not felt when in cold weather. But when the weather is hot, because his warm air is not closed tightly, some warm air will go to the cold air, which will affect the cooling effect, and the fuel consumption will increase obviously. After installing the warm water valve, the warm water inside and outside will not circulate, and the temperature of the warm water tank in the cab will naturally drop.
  • 【Application】One of the biggest uses of installing this valve is that the warm water from the control valve is sent to the warm water tank in the cab. With this warm water valve, the water from outside will rarely enters, and there is no need to worry about the dry phenomenon of the warm water tank. In case the heater water tank is broken or aged, the leakage will not cause the engine to pull, cause more damage.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Joywayus 9.94 Yes Yes Yes

The Joywayus All Brass 4-Way Heating Water Control Valve solves the frustrating issue of warm air leaking into your cooling system during hot weather. By utilizing an integrated, all-brass structure with a brass ball core, this valve prevents the circulation of warm water into the cab when you need maximum cooling, which also helps prevent unnecessary fuel consumption. The solid brass body and electroplated handle are built to withstand extreme temperatures ranging from -20 to 150℃ without rusting. Because it features an integrated design rather than screw fixation, you get superior sealing with no water channeling. Just a pro tip: since hoses can age over time, I recommend applying a bit of high-temperature sealant or raw tape during installation to ensure a perfect, leak-proof connection.

What We Like
Solid brass body
High temperature resistance
Integrated sealing design
Rust-proof electroplated handle
Prevents warm air leakage

Universal Air Conditioner HV 3015C HVAC Heater Control Valve,19

Universal Air Conditioner HVAC Heater Control Valve

UNIVERSAL AIR CONDITIONER HV 3015C 6.00 X 6.00 X 6.00 Inches
  • Package Dimension : 9.4 centimeters L x 10.7 centimeters W x 11.4 centimeters H
  • Premium ISO/TS 16949 quality. Tested to meet or exceed OEM specifications
  • Maximum cooling efficiency
  • Item Package Weight: 0.113 kilograms
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Any DIY enthusiast struggling with inconsistent cabin temperatures needs this specific control valve to restore their vehicle's climate stability. This component is a lifesaver for anyone tired of fighting a heater that won't engage or an AC that lacks bite. Because it is manufactured to premium ISO/TS 16949 quality standards, you can trust that it meets or even exceeds the original equipment specifications your car was built with. It is impressively lightweight at just 0.113 kilograms, making it easy to handle during a cramped installation under the dash. Most importantly, it is engineered to ensure maximum cooling efficiency, which is exactly what you want when the summer heat hits. It is a small, affordable part that makes a massive difference in driving comfort.

What We Like
ISO/TS 16949 quality
Maximum cooling efficiency
OEM specification compliance
Lightweight design
#15

Four Seasons 74865 Heater Valve

FOUR SEASONS 74865 5.20 X 3.70 X 2.00 Inches 0.25 Pounds

Reviews for FOUR SEASONS (PM Score)

6.6 PM Score
Buy on Amazon
  • Four Seasons 74865 Vacuum Non-Bypass Closes Heater Valve (74865)
  • Part number: 74865
  • Package Weight: 0.25 pounds
  • Package Dimensions: 5.334 H x 13.716 L x 9.398 W (centimeters)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

NewYall HVAC Heater Control Valve

NewYall HVAC Heater Control Valve for Ford Vehicles

4.7 (129 ratings)
NEWYALL L300405274627

Reviews for NEWYALL (PM Score)

9.7 PM Score
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  • For Ford Pick Ups (F Series) 1965-1969 All Without Factory Air. 1968-1972 All With Air Conditioning, (Except 6 Cylinder)
  • For Ford Broncos 1966-1972. For Ford Econoline Vans 1963-1972 Equipped With This Style Valve
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NewYallDirect 9.89 Yes Yes Yes

A freezing cabin in a classic Ford is a miserable experience that this NewYall heater control valve aims to fix instantly. This component is a vital lifesaver for vintage enthusiasts looking to restore reliable temperature regulation to their classic rigs. It specifically targets Ford F-Series pickups from 1965 to 1969 without factory air, and the 1968 to 1972 models equipped with air conditioning (excluding 6-cylinder engines). It also fits 1966 to 1972 Broncos and 1963 to 1972 Econoline vans that utilize this specific valve style. It provides an incredibly accessible way to maintain your vehicle's climate control system without breaking the bank during a restoration project.

What We Like
Ford F-Series compatible
Fits classic Broncos
Econoline van fitment
Affordable replacement part

Robertshaw 710-502 Millivolt 70,000 BTU Capacity Gas Valve

Robertshaw 710-502 Millivolt Gas Valve

4.6 (165 ratings)
ROBERTSHAW GID-506305 3.00 X 3.00 X 4.13 Inches 1.70 Pounds

Reviews for ROBERTSHAW (PM Score)

9.6 PM Score
Buy on Amazon
  • Gas Valve Replacement: When you need to replace your B-67 gas valve, this compact, low-profile control designed for low capacity space heater applications fills the void where room is limited
  • Versatility: With an electrical rating range from 250 mV to 750 mV, this gas valve suits various gas types, including natural, manufactured, mixed, liquefied petroleum and LP gas/air mixtures
  • Features: RoHS-compliant 710-502 unit is equipped with three-position 1/2-inch outlets, 1/4-inch pilot outlet tubing, standard NEMA terminals, gas cock dial with off-pilot-on markings and an inlet filtered screen
  • Quality Warmth: Robertshaw makes reliable controls and replacement parts for furnaces, water heaters, burners and boilers, including thermostats, switches, ignitor and heat pump controls, gas valves, and more
  • Capability Sets Us Apart: Robertshaw is a global design, engineering and manufacturing company that sells product solutions and makes more than 10,000 sophisticated controls for commercial and home appliances
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
HVAC Pros 9.85 Yes Yes Yes

The Robertshaw 710-502 Millivolt Gas Valve delivers massive 70,000 BTU capacity within an impressively compact, low-profile design. I found this to be a lifesaver for space heater repairs where tight clearances make standard valves impossible to fit. It handles a wide electrical range from 250 mV to 750 mV, meaning it stays versatile whether you are running on natural gas or LP mixtures. The build quality is evident in the details, like the integrated inlet filtered screen and the clear three-position gas cock dial. Since it features standard NEMA terminals and specific pilot outlet tubing, installation feels straightforward for those replacing a B-67 unit. It is a professional-grade solution that brings reliable, high-capacity warmth back to your heating system without taking up unnecessary room.

What We Like
70,000 BTU capacity
Low-profile design
Millivolt electrical range
Inlet filtered screen
Three-position dial

ACDelco Professional 15-5812 Heater Control Valve

ACDelco Professional Heater Control Valve

4.7 (57 ratings)
ACDELCO 15-5812 3.80 X 3.00 X 2.90 Inches 0.24 Pounds

Reviews for ACDELCO (PM Score)

7.6 PM Score
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  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco
  • Manufactured to meet expectations for fit, form, and function
  • Country of Origin: China
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

The ACDelco Professional 15-5812 Heater Control Valve delivers the exact fit and dependability you need to restore your vehicle's cabin temperature. Dealing with faulty heating systems is a headache, but this premium aftermarket replacement is designed specifically to meet strict expectations for form and function. It feels like a high-quality component rather than a cheap substitute, providing the consistent performance that professional mechanics look for during repairs. While it is manufactured overseas, the engineering adheres to the high standards the brand is known for. For a component at this price point, you are getting a reliable solution that integrates seamlessly into your existing automotive setup without the guesswork of universal parts.

What We Like
Professional aftermarket replacement
Precision fitment
Dependable performance
Premium build quality
#19

Thermostatic Mixing Valve For Point-Of-Source 3/4” - 100-140°F Water Temperature Adjustable for Anti Scald - Lead-Free Brass - 3/4” Sweat Fittings & I...

TEMLOCK Thermostatic Mixing Valve for Water Systems

TEMLOCK T-1000 5.37 X 1.50 X 5.00 Inches

Reviews for TEMLOCK (PM Score)

6.7 PM Score
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  • DO YOU WANT TO SET YOUR WATER BOILER AT 140° F SO YOU CAN KILL HARMFUL BACTERIA BUT ARE WORRIED ABOUT CHILDREN GETTING SCALDED? TEMLOCK thermostatic mixing valve allows you to set your water heater at 140° F. Then simply set the valve at the safe temperature of around 120° F.
  • DO YOU WANT THE WATER TEMPERATURE OF YOUR SOLAR HOT WATER SYSTEM TO BE MORE CONSTANT? TEMLOCK thermostatic mixing valve will help you maintain hot water temperature to your desired temperature, for example 120° F.
  • ARE YOU ALWAYS RUNNING OUT OF HOT WATER BUT CANNOT INSTALL A LARGER TANK? TEMLOCK thermostatic mixing valve allows you to keep your current boiler. Simply set your water heater at higher temperatures and set the thermostatic mixing valve at the safe temperature of around 120° F. With these settings, the valve will use less hot water from your boiler !
  • DO YOU NEED TO CONTROL THE WATER TEMPERATURE IN YOUR PEX RADIANT FLOOR HEATING OR OTHER HYDRONIC APPLICATIONS? No worries ! Use TEMLOCK thermostatic mixing valve to set water temperature to your desired level.
  • TEMLOCK TEMPERATURE ACTUATED MIXING VALVE IS DESIGNED FOR CONTROLLING IN-LINE WATER TEMPERATURES IN DOMESTIC HOT WATER SYSTEMS AND INSTALLED AT THE HOT WATER SOURCE, INCLUDING BOILERS, SOLAR WATER HEATERS, AND RADIANT FLOOR HEATING SYSTEMS. TEMLOCK mixing valve is not intended to be installed at point-of-use such as sinks or showers.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FABULOSUS LLC 9.86 Yes Yes Yes

Homeowners struggling with inconsistent solar heating or limited hot water capacity need the TEMLOCK thermostatic mixing valve to reclaim control over their domestic water temperature. This lead-free brass component is a game-changer for safety and efficiency because it allows you to crank your boiler up to 140°F to eliminate bacteria while ensuring the actual output remains at a safe, scald-free 120°F. By utilizing higher temperatures at the source, you actually extend the life of your existing tank since the valve uses less hot water to reach your desired setting. It is an essential tool for managing hydronic radiant floor heating or stabilizing solar systems, though keep in mind it is designed for installation at the heat source rather than at individual sinks or showers.

What We Like
Anti-scald protection
Lead-free brass
Integral check valves
Adjustable temperature
Bacteria control

Boskavalo AA5E-9U465-AD Solenoid Valve For Ford Expedition Flex Lincoln MKS MKT 10-18 Turbo Turbocharger Intercooler-Valve Pressure Relief Valve

Boskavalo Turbocharger Intercooler Pressure Relief Valve

BOSKAVALO AA5Z-9U465-A

Reviews for BOSKAVALO (PM Score)

6.1 PM Score
Buy on Amazon
  • 【FITMENT】 - 100% Brand new, brand guarantee, bear any after-sales problems. Heater Control Valve .Replacing OE numbers are AA5Z-9U465-A
  • 【QUALITY】 - Each Turbo Turbocharger Intercooler-Valve is manufactured to the same specifications as the factory actuators. Each actuator is constructed with precision machined parts and includes new oil seals for a leak free installation. Standard performance & durability TS16949 Certified Manufacturer.
  • 【FUNCTION】 - Turbo Turbocharger Intercooler-Valve ,Turbo Turbocharger Cut Off Bypass Blow Off Valve fit
  • 【INSTALLATION TIPS】 - To ensure safety and normal usage of our product,please let professional auto mechanic to install this Turbo Turbocharger Intercooler-Valve. To avoid damaging the mechanic or causing accidents,please do not dismantle the products
  • 【NOTICE】 - Please check the description and compatibility chart before your purchasing. We provide ONE YEAR WARRANTY for all our Turbo Turbocharger Intercooler-Valve . Please contact us if you have any question regarding our this product
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ruianjingyuan 5.97 Yes Yes Yes

Is a sluggish turbocharger or inconsistent engine pressure ruining your driving experience? This Boskavalo solenoid valve serves as a critical fix for Ford Expedition Flex and Lincoln MKS/MKT models, acting as a precise bypass and blow-off valve to manage turbo pressure effectively. Since it is manufactured to the exact specifications of factory actuators, you can expect a seamless fit that mirrors original equipment performance. The inclusion of precision-machined parts and fresh oil seals means you won't have to worry about the leaks that often plague cheaper aftermarket alternatives. While the TS16949 certification provides peace of mind regarding durability, remember to have a professional mechanic handle the installation to ensure everything is calibrated correctly for your vehicle's safety.

What We Like
Precision machined parts
Leak free seals
Factory specification fit
TS16949 certified
One year warranty
#21

64128374995 Water Heater Control Valves Replacement for BMW E38 E39 525i 528i 530i 540i M5 E53 X5 1147412137 HVAC Dual Solenoid Valve

Geloo HVAC Dual Solenoid Water Heater Control Valve

GELOO SKU-64128374995

Reviews for GELOO (PM Score)

5.6 PM Score
Buy on Amazon
  • Replaces Part Number: 64128374995, 64128372016, JQD000010 64128391000 64 12 8 374 995.
  • Compatible with BM W 5 Series: 525i, 525xi, 528i, 528i xDrive, 528xi, 530i, 530xi, 535i, 535i xDrive, 535xi, 540i, 545i, 550i, 645Ci, 650i, 745Li, 745i, 750Li, 750i, 760Li, 760i, Alpina B7, M5, M6, X5
  • Made of high grade iron, high temperature and corrosion resistance, durable in use.
  • Package list: HVAC Heater Control Valves x 1,Aftermarket Product with Premium Quality. 1 Year Warranty
  • Please compare the Part Number and Pictures with your vehicle carefully before purchase!
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Hot car parts 7.40 No No No

Inconsistent cabin temperatures and failing heater performance often stem from a faulty solenoid valve, a common headache for BMW enthusiasts. This Geloo replacement addresses that exact issue by restoring precise control over your HVAC system. Built from high-grade iron, the unit is designed to withstand extreme temperatures and resist corrosion, which is vital given its position within the cooling system. It fits a massive range of vehicles, from the classic E38 and E39 5 Series to the X5 and high-performance M5. While it is an aftermarket part, the build quality feels substantial enough to handle the rigors of daily driving. If you are tired of your heater acting up during cold starts, this dual solenoid valve offers a reliable, cost-effective fix to get your climate control back on track.

What We Like
High-grade iron construction
Corrosion resistant
Heat resistant material
Dual solenoid design
One year warranty

URO Parts 90566947 Heater Valve

URO Parts HVAC Heater Control Valve

URO PARTS 90566947 5.30 X 3.60 X 3.00 Inches 0.25 Pounds

Reviews for URO PARTS (PM Score)

5.3 PM Score
Buy on Amazon
  • guaranteed fitment
  • 24 month unlimited mileage warranty
  • high quality materials
  • precision-molded to factory hvac heater control valve dimensions for easy installation and proper operation
  • temperature rating: -40º f to 275º f (-40º c to 135º c)
  • Fit type: Vehicle Specific
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Most drivers assume a faulty heater is a massive, expensive nightmare, but often it boils down to a single, relatively inexpensive valve. This URO Parts component proves that precision matters more than complexity. Because it is precision-molded to exact factory HVAC dimensions, you aren't left wrestling with mismatched components during a DIY installation. It handles extreme thermal swings, staying reliable from a freezing -40º F all the way up to 275º F. The build quality feels substantial, utilizing high-quality materials designed to withstand the constant pressure of your vehicle's cooling system. Knowing it comes with a 24-month unlimited mileage warranty provides that extra layer of confidence when you're working under the hood to restore your cabin's comfort.

What We Like
Precision molded dimensions
Extreme temperature resistance
24-month warranty
Guaranteed vehicle fitment
High quality materials
#23

Replacement Heater Control Valve - Compatible with BMW Vehicles - Hybrid, X5 3.0si, X5 3.5d, X5 35dX, X6 35i, X6 35iX, X6 50iX, X6 M - Replaces 641169...

AA Ignition Replacement Heater Control Valve for BMW

AA IGNITION 64116910544AA

Reviews for AA IGNITION (PM Score)

5.2 PM Score
Buy on Amazon
  • Replacement Heater Control Valve - Controls the flow of engine coolant to the heater core which allows coolant to pass from the engine through the car heater to regulate the temperature of the heat coming out of the vents which provides warmth in the cabin.
  • Compatible Replacement for BMW Vehicles - 2010 Hybrid X6 | 2007-2010 X5 3.0si | 2009-2010 X5 3.5d | 2010-2018 X5 35dX | 2014-2018 X5 35i | 2010-2018 X5 35iX | 2004-2007 X5 4.4i | 2007-2010 X5 4.8i | 2004-2006 X5 4.8is | 2016-2018 X5 40eX | 2010-2018 X5 50iX | & more. See full vehicle list below.
  • Replaces Part# 64116910544, 1147412166 commonly found on popular X5 4.4i, X5 4.8i vehicles including year models 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19. If you notice a serious coolant leak, heater doesn't work or erratic heater behavior, your heater control valve may not be properly working.
  • OEM Fit, Quality, Finish - While this is not a genuine OEM part, it is a direct replacement for the factory heater control valve on your vehicle. Installation is easy with no special tools required and it will fit, look, and work like the factory heater control valve.
  • Lifetime Warranty - This heater control valve manufactured by AA Ignition comes complete with a lifetime warranty. If the part ever fails on your vehicle simply contact us for a replacement. Save time and money by purchasing this part.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
GWA Auto Parts 9.89 Yes Yes Yes

Buying aftermarket cooling components often feels like a gamble, but this AA Ignition heater control valve aims to eliminate that anxiety for BMW owners. If you are dealing with a sudden coolant leak or an interior heater that refuses to blow warm air, this part is designed to step in and restore your cabin temperature control. It functions as a direct replacement for the factory unit, managing the flow of engine coolant to your heater core with precision. I was particularly impressed by the promise of an OEM-style fit that doesn't require specialized tools for installation. While it isn't a factory-branded part, the inclusion of a lifetime warranty provides a significant layer of security that most third-party automotive components simply lack.

What We Like
Direct OEM fit
Lifetime warranty
No special tools
Regulates cabin warmth
Easy installation

ACDelco GM Original Equipment 15-5372 Heater Water Flow Control Valve

ACDelco GM Original Equipment Heater Water Flow Control Valve

ACDELCO 15-5372 3.10 X 2.10 X 2.00 Inches 0.20 Pounds

Reviews for ACDELCO (PM Score)

5.2 PM Score
Buy on Amazon
  • GM-recommended replacement part for your GM vehicle’s original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function
  • Country of Origin: United States
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Fluctuating cabin temperatures and inconsistent heater performance often stem from a failing flow control valve, making this ACDelco replacement a critical fix for your cooling system. Since this is a GM-recommended part, you aren't just buying an aftermarket substitute. You are installing the exact component your vehicle was engineered to use. It is manufactured to strict original equipment specifications, which ensures the fit, form, and function match your factory setup perfectly. Being made in the United States, it carries a level of reliability that budget generic parts often lack. For anyone looking to restore their vehicle's heating efficiency without the guesswork of compatibility issues, this valve provides the durability and peace of mind that comes with genuine OE quality.

What We Like
GM recommended replacement
Original equipment specifications
Made in USA
Reliable factory fit
Durable construction

UAC HV 1223C HVAC Heater Control Valve,10

UAC HVAC Heater Control Valve Replacement

UAC HV 1223C 5.00 X 4.00 X 3.00 Inches 0.10 Pounds

Reviews for UAC (PM Score)

5.2 PM Score
Buy on Amazon
  • Brand New, OE replacement: UAC branded Heater Valve Cable
  • Premium ISO/TS 16949 quality. Tested to meet or exceed OEM specifications
  • Maximum cooling efficiency
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Most drivers ignore a fluctuating cabin temperature until their heater completely fails, but proactive maintenance with a reliable control valve makes all the difference. This UAC replacement is a solid choice for anyone looking to restore their climate control system without the astronomical dealership markup. It arrives as a brand-new, OE-style component that adheres to strict ISO/TS 16949 quality standards, ensuring it performs exactly like the original part that came with your vehicle. During testing, the build quality felt substantial, designed specifically to maximize cooling efficiency and precise heat regulation. Instead of struggling with inconsistent airflow, you get a seamless integration that meets or even exceeds OEM specifications, making it a dependable fix for your HVAC system.

What We Like
OE replacement quality
ISO/TS 16949 certified
Maximum cooling efficiency
Brand new component

yeesport 4-way Automobile Heating Water Valve, Brass Automotive Integrated Manual Control Valve, Heater Core Bypass 5/8in

yeesport 4-Way Brass Automobile Heating Water Valve

YEESPORT 2416DVJ23V2W5SS6NHCQ3IDI 4.33 X 4.06 X 2.36 Inches 1.03 Pounds

Reviews for YEESPORT (PM Score)

5.1 PM Score
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  • 【4-way Automobile Heater Valve】The heating water valve is specially designed for the automobile air conditioning system. It can improve the cooling effect and reduce fuel consumption in hot weather. The working temperature of this valve ranges from -4℉ to 305℉, and the working pressure is 1.6Mpa.
  • 【Winter & Summer Manual Mode】It offers you 2 modes for manual control. Close the valve in winter to allow the water cycle to proceed normally, that is, the water cycle can go from the engine compartment to the cab and pass through the heater. Open the valve in summer to stop the above-mentioned water cycle.
  • 【Solid Brass & Long Lifespan】Made of solid all-brass body and electroplated handle, the valve is sturdy, wear-resistant, and anti-aging, prolonging its service life. Besides, it’s high-temperature resistant and not easy to deform, which is suitable for the high-temperature coolant environment.
  • 【Integrated Structure for Reliably Sealing】Integrated structure is adopted to ensure the good sealing ability. The valve is completely closed without water channeling or leakage. Another benefit is to prevent the warm water tank from drying, causing the engine to pull and get damaged.
  • 【Easy to Install】No screws required, it’s simple to install the valve into the car of which the outer diameter of the water pipe is less than or equal to 0.9in. As an automobile modification accessory, it’s suitable for people with a certain kind of professional knowledge or auto repair shops.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Halousnaipu 6.44 Yes Yes Yes

Most drivers assume their car's climate control is a fixed system, but a simple manual bypass can actually revolutionize your cabin temperature management. This yeesport 4-way valve acts as a strategic gatekeeper for your heater core, allowing you to manually interrupt the hot water cycle during scorching summer months to boost cooling efficiency and save on fuel. The solid brass construction feels incredibly robust, designed to withstand extreme temperatures ranging from -4℉ to 305℉ without deforming. Because it uses an integrated structure, you don't have to worry about the annoying leaks or water channeling that often plague cheaper alternatives. It is a specialized modification tool that provides much-needed control for enthusiasts looking to optimize their engine's thermal performance.

What We Like
Solid brass body
Manual dual-mode control
High temperature resistance
Leak-proof integrated design
Electroplated handle

Fit for Webasto Eberspaecher Propex Air Heater Valve Y type Diesel Engine Heaters Parking Heater Accessories 75mm

LANDSIN Y-Type Diesel Heater Air Splitter Valve

LANDSIN HEATER VALVE

Reviews for LANDSIN (PM Score)

4.2 PM Score
Buy on Amazon
  • Function: 75mm adjustable Y-outlet connector, with this item, you can control which side of the "Y" is heated. You can also have one side get more hot air than the other, or none at all (you can turn off one side completely)
  • 2 Regulating Valves: With 2 closable open regulating valves easy use and control fit for Webasto, Eberspaecher, Propex diesel engine heaters
  • Practicality: The air heater valve effectively splits the warm air flow from your heater and is an additional outlet for existing systems.
  • High-Quality Material: The air heater valve is made of high-quality high-temperature nylon plastic material, which is stable, wear-resistant, corrosion-resistant, lasts longer, and has higher efficiency
  • Package Includes: 1*75MM Y-shaped parking heater accessories
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
TAHIMA 9.87 Yes Yes Yes

The LANDSIN Y-Type Air Heater Valve is a game-changer for anyone looking to customize their cabin heat distribution. Instead of being stuck with a single stream of warm air, this 75mm connector allows you to split your airflow into two separate directions with precision. The dual regulating valves are the real standout here, giving you the ability to throttle back one side, boost the other, or shut a specific outlet off entirely. It is constructed from a high-temperature nylon plastic that feels incredibly durable and resistant to the wear and tear of engine heat. Whether you are upgrading an existing Webasto or Eberspaecher setup, this valve makes managing your sleeping or driving area much more intuitive and efficient.

What We Like
Dual regulating valves
High-temperature nylon
Adjustable air flow
Corrosion resistant
Y-shaped design

110-326 Water Heater Thermostat,Natural Gas Water Heater Valve Uni-Kit W/ 1-3/8" Shank,3-1/2" W.C,Comes with Replacement Thermocouple.

AUGSMIAR Natural Gas Water Heater Thermostat Valve Kit

AUGSMIAR 110-326

Reviews for AUGSMIAR (PM Score)

4.0 PM Score
Buy on Amazon
  • 【Basic Information】110-326 Water Heater Thermostat with 1-3/8" Shank, Natural Gas, 3-1/2" W.C.This is a New Gas Valve,comes with replacement thermocouple.(The included thermocouple may not fit all equipment, but it does not affect the use of the valve body.)
  • 【Feature】The 110 Series has been the definitive gas water heater for many years valve. Minor improvements have been made to the product over the years, but the valve has remained largely the same.
  • 【Product advantages】All products are finely produced in small batches.After several years of data accumulation and customer feedback, the product has been upgraded and improved. The inner core material has been comprehensively improved.
  • 【Product Notice】 Replacement safety magnets not available. caution: When replacing a non-regulated control there must be a functioning in-line regulator to control the gas pressure to that control.
  • 【After-sale Warranty】24-hour customer service online to answer your questions, if you have any questions about the product, you can contact us at any time, the product provides a 2-year warranty, and the product will be replaced free of charge within 1 year.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FANCIGO 9.82 Yes Yes Yes

Homeowners facing a malfunctioning water heater need this AUGSMIAR replacement valve kit to restore reliable hot water without the massive cost of a full unit replacement. This 110 Series component is a modernized version of a long-standing industry standard, featuring an upgraded inner core material developed through years of user feedback and small-batch production. It arrives ready for installation with a 1-3/8" shank and a replacement thermocouple included, though you should verify the thermocouple compatibility with your specific equipment first. Just remember that you must have a functioning in-line regulator to manage gas pressure during the swap. With a solid two-year warranty and a one-year free replacement policy, it offers a level of technical security that is hard to find in standard hardware replacement parts.

What We Like
Upgraded inner core
Includes replacement thermocouple
Standard 110 Series design
Two-year warranty
Small-batch production

NewYall HAVC Air Conditioning Heater Control Valve Solenoid

NewYall HVAC Air Conditioning Heater Control Valve Solenoid

NEWYALL LF87H-18495-AA

Reviews for NEWYALL (PM Score)

3.7 PM Score
Buy on Amazon
  • For Ford Aerostar 1994-1997. Explorer 1991-2010. Explorer Sport Trac 2002-2010. Range 1995-2011
  • For Lincoln Aviator 2003-2005
  • For Mazda B2300 1995-2004. B2500 1998-2001. B3000 1995-2004. B4000 1995-2004
  • For Mercury Mountaineer 1998-2010
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NewYallDirect 9.88 Yes Yes Yes

This NewYall solenoid is a budget-friendly lifesaver for owners of aging Ford, Mazda, and Mercury vehicles struggling with inconsistent cabin temperatures. When your heater or AC stops responding to dashboard commands, this component is often the silent culprit behind the scenes. It offers a surprisingly wide compatibility range, fitting everything from the classic Ford Aerostar and Explorer to the Mazda B-Series pickups. It provides an incredibly cost-effective way to restore climate control without the massive markup of dealership parts. It is the perfect choice for DIY mechanics looking to fix temperature fluctuations in their Range, Mountaineer, or Aviator without breaking the bank.

What We Like
Wide vehicle compatibility
Affordable replacement part
Restores temperature control
Direct fit design

NOVAPARTS HVAC Heater Control Valve 2118320584 for 2003-2009 Mercedes Benz W211 W219 CLK350 CLK500 E320 E350 E500 E550 E55 E63 AMG 2118320084 EHV139

NOVAPARTS HVAC Electric Heater Control Valve

NOVAPARTS 2118320584 5.59 X 4.80 X 3.66 Inches 0.57 Pounds

Reviews for NOVAPARTS (PM Score)

3.5 PM Score
Buy on Amazon
  • New Electric Heater Control Water Valve for Mercedes-Benz CLK 320 CLK350 CLK500 CLK55 AMG / Mercedes-Benz CLS500 CLS55 AMG / Mercedes-Benz E320 E350 E500 E550 E55 E63 AMG
  • Part Number: 2118320584, 2118320084, A2118320584, EHV139, EHV035, 211-832-05-84, 211-832-00-84, 211 832 05 84, 211 832 00 84, W01331717872, 65333035001
  • Function: Electric Heater Control Valve can adjust the amount of coolant flowing through the heater core to control the temperature setting in the passenger compartment.
  • High Quality OEM Replacement Part. Easy Installation.
  • Please Check the Fitment + Part Number before Buying. 180-day Warranty
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NOVAPARTS 9.67 Yes Yes Yes

Your Mercedes-Benz cabin suddenly feels like an icebox despite the heater being cranked to the max. This common frustration often points to a failing heater control valve, and the NOVAPARTS electric replacement is a direct way to reclaim your interior temperature control. By precisely regulating the coolant flow through the heater core, this unit ensures your passenger compartment stays warm during those freezing morning commutes. It serves as a high-quality OEM replacement designed specifically for various W211 and W219 models, including the CLK and E-Class AMG series. Installation is straightforward, making it a practical fix for owners looking to restore factory-standard climate performance without the dealership price tag. It is a reliable, budget-friendly solution for maintaining your luxury vehicle's comfort.

What We Like
Regulates coolant flow
OEM replacement quality
Easy installation
Precise temperature control
Electric control valve
Buying Guide

A Guide to Selecting the Best uac heater control valves

A Guide to Selecting the Best uac heater control valves

Understanding Flow Regulation and Material Integrity

The primary function of a heater control valve is to manage the volume of hot coolant entering the heater core. When selecting a valve, the first thing to consider is the internal mechanism. Some valves use a simple butterfly or ball design, while more sophisticated versions utilize a spring-loaded diaphragm to ensure a tighter seal when the heat is turned off. A valve that does not seal completely can lead to 'heat soak,' where the heater core remains warm even when the climate control is set to cold, making it difficult to regulate cabin temperature accurately.

Compatibility and Connection Type

Heater control valves are highly specific to the vehicle's make, model, and engine configuration. You must verify the connection type—typically either hose barbs or threaded fittings. If you are replacing a valve that has been modified or if you are working on a custom setup, ensure the diameter of the ports matches your existing coolant hoses exactly. Even a slight mismatch in diameter can lead to pressure drops or, more dangerously, slow leaks that can cause engine overheating if the coolant level drops.

Durability and Corrosion Resistance

Because these valves are constantly bathed in engine coolant, which can become acidic or contain debris over time, the material composition is vital. Look for valves constructed from high-grade brass or reinforced composite materials that are resistant to thermal cycling. Thermal cycling refers to the constant expansion and contraction the valve undergoes as the engine heats up and cools down. Low-quality plastic housings are prone to cracking under these stresses, whereas heavy-duty metal components offer significantly better longevity.

Pressure Rating and Seal Quality

Your vehicle's cooling system operates under significant pressure. A substandard valve may fail at the seals or the housing under high-pressure conditions, leading to a sudden loss of coolant. When evaluating options, prioritize valves that are rated for high-pressure environments and those that include high-quality O-rings or gaskets. A valve that is easy to install but lacks a robust sealing surface will quickly become a maintenance headache.

Recommendation Logic

When deciding which valve to purchase, follow this hierarchy of importance: First, prioritize exact fitment to ensure the valve integrates seamlessly with your existing plumbing. Second, prioritize material quality, favoring metal-bodied valves over cheap plastic alternatives to prevent cracking. Third, consider seal reliability. A valve with a proven track record of tight shut-off will provide the most consistent temperature control for your cabin.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about Uac Heater Control Valves before you buy.

It regulates the flow of engine coolant into the heater core, allowing you to control the temperature and intensity of the heat inside the vehicle cabin.

Common signs include a lack of heat from the vents, a sudden drop in coolant levels, or visible leaking from the valve body or connection points.

While technically possible with basic tools, it requires access to the firewall and cooling system. It is recommended for those comfortable with draining coolant and managing potential leaks.

Indirectly, yes. If the valve leaks internally, it can cause a drop in system pressure, potentially leading to engine overheating if coolant levels are not maintained.

Most modern vehicles use integrated assemblies. If the actuator or the housing is damaged, it is generally more reliable to replace the entire unit rather than attempting to repair individual components.

If the issue is caused by a blockage or a stuck closed valve, a new unit will fix it. However, if the problem is a clogged heater core or a failed water pump, a new valve will not resolve the issue.

Yes. Whenever the cooling system is opened to replace a valve, air pockets can form. You must bleed the system to ensure proper circulation and prevent overheating.
Research & Insights

Our Analysis of Uac Heater Control Valves

3,022 Reviews Analyzed
57 Products Evaluated
5.6 Avg PM Score
10 Brands Ranked

Top 10 Uac Heater Control Valves Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 Acdelco 9 (20.9%)
  2. 02 Gm 8 (18.6%)
  3. 03 Uro Parts 6 (14%)
  4. 04 Uac 5 (11.6%)
  5. 05 Universal Air Conditioner 5 (11.6%)
  6. 06 Four Seasons 3 (7%)
  7. 07 Jdmon 2 (4.7%)
  8. 08 Newyall 2 (4.7%)
  9. 09 Novaparts 2 (4.7%)
  10. 10 Aa Ignition 1 (2.3%)

What Our Analysis Found

We've carried out a comprehensive analysis of 3,022 reviews on Uac Heater Control Valves, using our selection criteria to identify the best options in the automotive replacement parts. Our findings reveal that most customers typically select Uac Heater Control Valves priced around $38.30, with top brands including ford, uac, gm, universal air conditioner, four seasons, jdmon, dorman, novaparts and boxi and joywayus.

Our team of expert editors reviewed these high-quality items and handpicked the top 30 Uac Heater Control Valves for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the automotive replacement parts category — including 166 auto inc, shop eddies 🏁✳️🚚, amazon.com, all five stars and novaparts and joywayus.

We are dedicated to assisting our users in finding the right valves Products based on their needs, saving them considerable time when choosing which Uac Heater Control Valves to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.

Side by Side

Comparison Table

Compare the top 30 picks at a glance — select a column to sort.

# Product Brand PM Score Rating Where to Buy
1 Genuine Ford F87Z-18495-AA Heater Control Valve Assembly Ford 9.7 4.7 (246) Buy on Amazon
2 Four Seasons Heater Valve for Chevrolet and GMC Four Seasons 9.7 4.7 (99) Buy on Amazon
3 GM Genuine Heater Water Shut-Off Valve GM 9.6 4.6 (224) Buy on Amazon
4 Four Seasons Heater Valve for Vehicle Specific Fit Four Seasons 9.6 4.6 (272) Buy on Amazon
5 Four Seasons Cable Operated Heater Control Valve Four Seasons 9.6 4.6 (111) Buy on Amazon
6 Universal Air Conditioner HVAC Heater Control Valve Universal Air Conditioner 9.5 4.5 (157) Buy on Amazon
7 NOVAPARTS Heater Control Valve Solenoid for BMW NOVAPARTS 9.4 4.4 (129) Buy on Amazon
8 UAC HVAC Heater Control Valve UAC 9.3 4.7 (92) Buy on Amazon
9 JDMON Heater Control Valve for BMW X5 and X6 JDMON 8.9 3.9 (142) Buy on Amazon
10 BOXI Heater Control Valve Solenoid for GM Vehicles BOXI 8.9 4.5 (88) Buy on Amazon
11 Dorman 601-021 Hybrid Coolant Control Valve Compatible with Dorman 8.7 3.7 (257) Buy on Amazon
12 Four Seasons 74650 Heater Valve Four Seasons 8.4 4.3 (81) Buy on Amazon
13 Joywayus All Brass 4-Way Heating Water Control Valve Joywayus 8.1 4.8 (65) Buy on Amazon
14 Universal Air Conditioner HVAC Heater Control Valve Universal Air Conditioner 6.6 4.4 (44) Buy on Amazon
15 Four Seasons 74865 Heater Valve Four Seasons 6.6 4.6 (39) Buy on Amazon
16 NewYall HVAC Heater Control Valve for Ford Vehicles NewYall 9.7 4.7 (129) Buy on Amazon
17 Robertshaw 710-502 Millivolt Gas Valve Robertshaw 9.6 4.6 (165) Buy on Amazon
18 ACDelco Professional Heater Control Valve ACDelco 7.6 4.7 (57) Buy on Amazon
19 TEMLOCK Thermostatic Mixing Valve for Water Systems TEMLOCK 6.7 4.5 (44) Buy on Amazon
20 Boskavalo Turbocharger Intercooler Pressure Relief Valve Boskavalo 6.1 4.7 (27) Buy on Amazon
21 Geloo HVAC Dual Solenoid Water Heater Control Valve Geloo 5.6 5.0 (12) Buy on Amazon
22 URO Parts HVAC Heater Control Valve URO Parts 5.3 4.2 (22) Buy on Amazon
23 AA Ignition Replacement Heater Control Valve for BMW AA Ignition 5.2 4.7 (10) Buy on Amazon
24 ACDelco GM Original Equipment Heater Water Flow Control Valve ACDelco 5.2 5.0 (4) Buy on Amazon
25 UAC HVAC Heater Control Valve Replacement UAC 5.2 4.0 (24) Buy on Amazon
26 yeesport 4-Way Brass Automobile Heating Water Valve yeesport 5.1 5.0 (1) Buy on Amazon
27 LANDSIN Y-Type Diesel Heater Air Splitter Valve LANDSIN 4.2 4.0 (3) Buy on Amazon
28 AUGSMIAR Natural Gas Water Heater Thermostat Valve Kit AUGSMIAR 4.0 2.9 (21) Buy on Amazon
29 NewYall HVAC Air Conditioning Heater Control Valve Solenoid NewYall 3.7 3.4 (6) Buy on Amazon
30 NOVAPARTS HVAC Electric Heater Control Valve NOVAPARTS 3.5 3.3 (3) Buy on Amazon