Best Pressure Washer Unloader Valves 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 |
|---|---|---|---|---|
| Ultimate Washer® | 9.89 | ✅ | ✅ | ✅ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Max PSI: 4,500
Max GPM: 10.5
Outlet Fitting: 3/8” F
Brass construction
Spring Color: Black
Includes Adjustment Knob
Relieve built up pressure within your pump
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Pitt Auto Electric Co | 9.84 | ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| American Airless | 9.71 | ❌ | ❌ | ❌ |
Compatible with Annovi Reveberi Residental Pumps: RWM Series, SRMW Series, RMV Series, SRMV Series.
Spring loaded to help regulate and manage pump pressure
Relive excess pressure build up from long cleaning sessions
Built with a secure threading making installation quick and easy
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Max PSI: 3,650
Max GPM: 10.5
Outlet Fitting: 3/8” F
Brass construction
Spring Color: Blue
Includes Adjustment Knob
Relieve built up pressure within your pump
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Le Pierre Le Fleur | 6.57 | ❌ | ❌ | ❌ |
GET YOUR PRESSURE WASHER PUMP BACK IN ACTION: The Simpson Cleaning Manifold Replacement Kit is a high quality replacement part for your pressure washer pump; With easy installation, you will be able to get back to your power washing projects in no time
WHAT IT DOES: This is an original equipment replacement for the manifold on the 510020 and 520006 OEM brand axial cam pressure washer pump
COMPATIBILITY: Check the pump model number before ordering to make sure you get the right part; This manifold kit is compatible with this model of OEM Technologies pressure washer pump: 510020 and 520006
PRODUCT DETAILS: Includes valves, seals, unloader, thermal relief valve (TRV), integrated soap injection, garden hose inlet, high-pressure hose outlet, and mounting hardwaren; Fitted with 3/4" garden hose low-pressure inlet and M22 high-pressure outlet
QUALITY REPLACEMENT PARTS: Simpson replacement parts are great for commercial and residential pressure washers; From inlet and outlet fittings to seal kits, manifolds, and valves, save time and money by repairing your pump with genuine Simpson components
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| The ROP Shop | 9.85 | ✅ | ✅ | ✅ |
Does NOT Replace Part Number 190628GS, Only Way to Verify Fitment is to Measure Total Length, See Spec Picture
Himore Unloader Valve fits Many Sears Craftsman & Generac Pressure Washer Pumps
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Carbpro | 9.67 | ✅ | ✅ | ✅ |
310924003 Unloader Valve Kit Fit for Many Coleman Powermate / Simpson Pressure Washer Pump
Package Includes: 1 x Kit As Pictured
Brand NEW in Factory Package
Comes as shown in the pictures
Please confirm your old part number matches up with one of the part numbers above
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
GET YOUR PRESSURE WASHER PUMP BACK IN ACTION: The Simpson Cleaning Manifold Replacement Kit is a high quality replacement part for your pressure washer pump; With easy installation, you will be able to get back to your power washing projects in no time
WHAT IT DOES: This is an original equipment replacement for the manifold on the 510026 OEM brand axial cam pressure washer pump
COMPATIBILITY: Check the pump model number before ordering to make sure you get the right part; This manifold kit is compatible with this model of OEM Technologies pressure washer pump: 510026
PRODUCT DETAILS: Includes valves, seals, unloader, thermal relief valve (TRV), integrated soap injection, garden hose inlet, high-pressure hose outlet, mounting hardware; Fitted with 3/4" garden hose inlet & M22 high-pressure outlet; Aluminum construction
QUALITY REPLACEMENT PARTS: Simpson replacement parts are great for commercial and residential pressure washers; From inlet and outlet fittings to seal kits, manifolds, and valves, save time and money by repairing your pump with genuine Simpson components
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Allparts Equipment and Accessories LLC | 9.80 | ❌ | ❌ | ❌ |
GET YOUR PRESSURE WASHER PUMP BACK IN ACTION: The Simpson Cleaning Manifold Replacement Kit is a high quality replacement part for your pressure washer pump; With easy installation, you will be able to get back to your power washing projects in no time
WHAT IT DOES: This is an original equipment replacement for the manifold on the 520004 OEM brand axial cam pressure washer pump
COMPATIBILITY: Check the pump model number before ordering to make sure you get the right part; This manifold kit is compatible with this model of OEM Technologies pressure washer pump: 520004
PRODUCT DETAILS: Includes valves, seals, unloader, thermal relief valve (TRV), integrated soap injection, garden hose inlet, high-pressure hose outlet, and mounting hardware.
QUALITY REPLACEMENT PARTS: Simpson replacement parts are great for commercial and residential pressure washers; From inlet and outlet fittings to seal kits, manifolds, and valves, save time and money by repairing your pump with genuine Simpson components
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Changqing | 8.37 | ✅ | ✅ | ✅ |
Fits models:RMW2G20 / RMW2G23 / RMW2G24 / RMW2G25 / RMW2.2G20 / RMW2.5G26D-F7 / RMW22G24 / RMW25G25 / RMW25G28 / RMV2G20 / RMV2G24 / RMV2G25 / RMV25G30 / SRMV22G26 / SRMW22G26 / SRMW24G28
Replace Part Number : AR42118 / 202328GS / 315747GS / 200348GS
Made of superior quality raw material, stable characteristics and high reliability.
Included item are detailed in the product pictures
Excellent quality, fast delivery, simple after-sales. We make every effort to provide customers with satisfactory service.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| qiaomeng | 8.43 | ✅ | ✅ | ✅ |
Replace Part Number: AR42118 202328GS 315747GS 200348GS .
Fitment: For Annovi Reverberi pump models: RMW2G20 / RMW2G23 / RMW2G24 / RMW2G25 / RMW2.2G20 / RMW2.5G26D-F7 / RMW22G24 / RMW25G25 / RMW25G28 / RMV2G20 / RMV2G24 / RMV2G25 / RMV25G30 / SRMV22G26 / SRMW22G26 / SRMW24G28. Also fit for Ridgid Model RD80746 & Huskey HU 80722 / HU80722 / HU080722 etc.
Function: The main function is to automatically control the unloading or loading of the pump. When unloading, the pressure oil returns directly to the fuel tank, and the system pressure is zero, which can achieve loop control or reduce power consumption to increase the life of the oil pump.
Advantages: Gas-Powered Drive. It is made of brass and stainless steel, has passed rigorous screening and testing, long service life, easy installation.
Packing List: 1× Unloader Valve + 1× Long Threaded Rod（as shown）.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
GET YOUR PRESSURE WASHER PUMP BACK IN ACTION: The Simpson Cleaning Manifold Replacement Kit is a high quality replacement part for your pressure washer pump; With easy installation, you will be able to get back to your power washing projects in no time
WHAT IT DOES: This is an original equipment replacement for the manifold on the 520002 OEM brand axial cam pressure washer pump
COMPATIBILITY: Check the pump model number before ordering to make sure you get the right part; This manifold kit is compatible with this model of OEM Technologies pressure washer pump: 520002
PRODUCT DETAILS: Includes mounting hardware, soap hose screen, and thermal relief valve (TRV); Valves and integrated unloader installed; Brass and aluminum construction; Fitted with 3/4-inch garden hose low-pressure inlet and M22 high-pressure outlet
QUALITY REPLACEMENT PARTS: Simpson replacement parts are great for commercial and residential pressure washers; From inlet and outlet fittings to seal kits, manifolds, and valves, save time and money by repairing your pump with genuine Simpson components
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Outdoors Warrior | 9.51 | ✅ | ✅ | ✅ |
310924003 Pump Unloader Valve Kit for many troy bilt Models
Package Includes: 1 x Kit As Pictured
Please confirm your old part number matches up with one of the part numbers above
High product quality, fast delivery and easy after-sales services.
Please feel free to contact us if you are not sure which part to order.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Simpson | 4 |
| Ar Annovi Reverberi | 3 |
| B E Pressure | 1 |
| Carbpro | 1 |
| Cqyd | 1 |
| Himore | 1 |
| Homelite & Ryobi Genuine Parts | 1 |
| Licbund | 1 |
| Xingli | 1 |
We've carried out a comprehensive analysis of 1,484 reviews on pressure washer unloader valves, using our selection criteria to identify the best options in the outdoor power & lawn equipment. Our findings reveal that most customers typically select pressure washer unloader valves priced around $64.88, with top brands including ar annovi reverberi, himore, b e pressure, carbpro, cqyd, engicarb, homelite & ryobi genuine parts, loofu and xingli and licbund
Our team of expert editors reviewed these high-quality items and handpicked the top 14 pressure washer unloader valves for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the outdoor power & lawn equipment category. These include amazon.com, the rop shop, ultimate washer®, carbpro, changqing, engicarb, pitt auto electric co, loofu and outdoors warrior and american airless .
We are dedicated to assisting our users in finding the right accessories Products based on their needs, saving them considerable time when choosing which pressure washer unloader valves to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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