Best Aisin Automotive Replacement Engine Thermostats in 2026
Daisy
Last Updated: Jul 18, 2026
Daisy
Last Updated: Jul 18, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| WorldWide-Distributors | 9.81 | ❌ | ❌ | ❌ |
COMFORT COMES IN YOUR COLOR. Personalize your Wi-Fi Smart Color Programmable Thermostat to fit your décor. The Honeywell Wi-Fi Smart Thermostat does have an auto changeover feature in which the thermostat automatically selects heating or cooling depending on the indoor temperature. Heat and cool settings must be at least 3 degrees apart. The thermostat will automatically adjust settings to maintain this 3-degree separation.
SAVE ENERGY AND GET REWARDED by checking with your energy provider about available rebates. Plus, eligible customers can enroll in their local Utility's "DEMAND RESPONSE PROGRAM" which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand.
YOUR SCHEDULE. YOUR WAY. Flexible programming options for your schedule or utility company’s peak rate pricing.
EASY OPERATION AND INTUITIVE. Bright, easy-to-read touchscreen makes for simple operation.
COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V). C-Wire required.
ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use.
Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter. Our Air products and services work with you and for you, supporting and creating more comfortable surroundings
Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Control the flow of coolant through the radiator to enable the engine to reach and maintain its normal operating temperature
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Puckish Deals | 7.89 | ✅ | ✅ | ✅ |
Package Dimensions: 2.01 L x 5.75 H x 5 W (inches)
Package Weight : 1 pounds
Country of Origin : Japan
Part number: 19301-PAA-306
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Product Type :Auto Part
Package Dimensions :7.874 Cm L X6.858 Cm W X4.318 Cm H
Country Of Origin :China
Package Weight :0.3Lbs
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Easy to replace with common tools. See your owner's manual for removal of non-functioning thermostat and replacement of new thermostat.
160 F degree thermostat. Use only the temperature thermostat listed in your owner's manual or service manual.
Proper engine cooling temperature assures peak performance and highest efficiency.
Produced to meet Mercury Marine original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| TAIKOU | 7.99 | ✅ | ✅ | ✅ |
genuine oem factory part
exact fit
durable
best in quality
this is not an aftermarket part
OEM
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| TXN Supply | 9.91 | ✅ | ✅ | ✅ |
Premium Superstat thermostat.
Uses high venturi for maximum cooling capacity during high temperature, high load oepration.
25% larger piston in diameter that delivers 1 1/2 the power of standard thermostats.
Stanless steel flange is burnished to a bright finish for stress relief and added corrosion resistance.
Thicker flange.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
oe manufactured for exact form, fit and function
contributes to maintaining cooling system performance
critical aspect of the cooling system
keeps the coolant within the optimal temperature range
Fit type: Vehicle Specific
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| JWToolsParts | 8.53 | ❌ | ❌ | ❌ |
Water outlet thermostat housing made of durable material for a long lasting life.
Thermostat is integrated into housing assembly, simplifying installation.
Stant Engine Coolant Thermostat
Item Package Weight: 0.51 pounds
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
country of origin : united states
the package height of the product is 2.55 inches
the package length of the product is 4.02 inches
the package width of the product is 3.35 inches
Fit type: Vehicle Specific
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Premium Superstat thermostat.
Uses high venturi for maximum cooling capacity during high temperature, high load oepration.
25% larger piston in diameter that delivers 1 1/2 the power of standard thermostats.
Stanless steel flange is burnished to a bright finish for stress relief and added corrosion resistance.
Thicker flange.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Bluestone auto products | 9.80 | ❌ | ❌ | ❌ |
2005-2009 Outback and Legacy 2.5 3.0
2010-2014 Outback and Legacy 3.0 & 3.6
2006-2011 Impreza 2.5 sohc
2005-2008 Forester 2.5 sohc
2006-2014 Tribeca
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| G.P.S. | 9.95 | ✅ | ✅ | ✅ |
Ford Lincoln Mercury MOTORCRAFT RT1234 engine Radiator coolant Thermostat OEM
Engine Radiator coolant Thermostat
F250 F350 F450 F550 F150 Super Duty Mustang
7L3Z8575D
Motorcraft
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Precision temperature control
More efficient engine operation
Faster engine warm up
Fewer emissions
Better fuel economy
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Input voltage (AC) 115 V
Input frequency 60 Hz
Multi-Zone CCC Thermostat in White, Control board not included
The Dometic Multi-Zone Comfort Control Center Thermostat can control your Dometic heating and cooling appliances. Weather you are camping in the middle of winter or driving in the hot and humid conditions of the summer, this Dometic Atwood Thermostat is perfect control
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
manufactured from high quality components to meet the demanding conditions of the automotive cooling system
manufactured with oem specifications and processes
copper case and wax compound assures rapid response to temperature changes in the coolant
offset design, air relief valve, and oem style seals included where applicable
Fit type: Vehicle Specific
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Larger opening for increased coolant flow
Increased strength and durability
High grade stainless steel and copper construction
Meets or exceeds OEM standards
Fit type: Vehicle Specific
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
High grade stainless steel and copper construction
Meets or exceeds OEM standards
Consistent and precise response to cooling system needs
Original equipment design for worry-free direct fit replacement
Fit type: Vehicle Specific
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Original equipment design.
Made of durable material for a long lasting life.
Stainless steel assembly engineered for a smooth performance.
Fit type: Vehicle Specific
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Original equipment design.
Made of durable material for a long lasting life.
Stainless steel assembly engineered for a smooth performance.
Fit type: Vehicle Specific
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Repairs leaking thermostat housings
Corrects engine overheating caused by failed thermostat
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| RV Wholesale Direct LLC | 9.62 | ❌ | ❌ | ❌ |
Thermostat Switch for SW10DE
Thermostat Switch for SW12DE
Thermostat Switch for SW6DE
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Fits 2001–2013 Chevrolet/GMC 6.6L Duramax
Activates at lower temperature so coolant flows through system earlier
Allows for cooler engine temperatures
Purchase Includes: One 174° F Thermostat / One 180° F Thermostat
Activate at a lower temperature than the OEM thermostats
Perfect for Duramax owners who live in warmer climates, or use their trucks under heavy load or strenuous driving conditions
Allow for cooler temperatures
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Manufactured from high quality components to meet the demanding conditions of the automotive cooling system
Manufactured with OEM specifications and processes
Copper case and wax compound assures rapid response to temperature changes in the coolant
Offset design, air relief valve, and OEM style seals included where applicable
Fit type: Vehicle Specific
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
"integrated housing thermostat; 180 degree (35/34" x 3/4" x 3-holes) w/seal, jiggle pin"
opens against the flow of coolant from the water pump
the coolant, under water pump pressure, is used to help the reverse poppet thermostat stay closed when cool to reduce leakage
the offset thermostat with jiggle pin valves is equipped with a special valve in the flange
Fit type: Vehicle Specific
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Water outlet thermostat housing made of durable material for a long lasting life.
Thermostat is integrated into housing assembly, simplifying installation.
Stant Engine Coolant Thermostat
Item Package Weight: 0.53 pounds
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| AutoPlus Auto Parts | 9.40 | ❌ | ❌ | ❌ |
Product Type: Auto Part
Package Quantity: 1
Product Dimensions: 12.953 cms (L) x 27.94 cms (W) x 9.652 cms (H)
Country Of Origin: China
Fit type: Vehicle Specific
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Matches OE form, fit and function
Premium materials to withstand extreme temperatures and long stroke for maximum cooling
Quality construction for durability
Be sure to use the proper coolant to maximize cooling system components. See Beck/Arnley catalog for the coolant for this application.
Application specific for this vehicle
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Exlusive, Patented design safeguards against overheating
Locking technology prevents costly engine damage
Manufactured with the highest quality materials from an OE supplier
Maintains optimum engine performance temperatures
100% tested and calibrated
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Exlusive, Patented design safeguards against overheating
Locking technology prevents costly engine damage
Manufactured with the highest quality materials from an OE supplier
Maintains optimum engine performance temperatures
100% tested and calibrated
Fit type: Vehicle Specific
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Motorad | 48 |
| Stant | 32 |
| Acdelco | 20 |
| Beck/Arnley | 19 |
| Gates | 14 |
| Aisin | 12 |
| Motorcraft | 10 |
| Mahle Original | 9 |
| Mishimoto | 9 |
| Honeywell Home | 3 |
We've carried out a comprehensive analysis of 58,859 reviews on automotive replacement engine thermostats, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select automotive replacement engine thermostats priced around $30.69, with top brands including and
Our team of expert editors reviewed these high-quality items and handpicked the top 30 automotive replacement engine thermostats for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .
We are dedicated to assisting our users in finding the right thermostats Products based on their needs, saving them considerable time when choosing which automotive replacement engine thermostats to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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