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The AAA Triplex Replacement Power Washer Pump (model 90037) delivers industrial-grade cleaning power with up to 3700 PSI and 2.5 GPM flow. Designed for horizontal engine gas pressure washers with a 3/4" shaft, it features PowerBoost Technology for adjustable pressure, a durable brass manifold, and easy maintenance with a sight glass and thermal relief valve. Compatible with popular engines like Honda GX200, this pump kit includes all necessary hardware for quick installation and comes backed by a 5-year warranty—perfect for pros and DIYers aiming to restore peak pressure washer performance without replacing the entire unit.
| ASIN | B00TQLMNMC |
| Best Sellers Rank | #32,684 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #19 in Pressure Washer Pumps |
| Brand | AAA |
| Brand Name | AAA |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 526 Reviews |
| Flow Rate | 2.5 Gallons Per Minute |
| Global Trade Identification Number | 00879399002076, 08793990020760 |
| Included Components | Pump Kit |
| Item Dimensions L x W x H | 12"L x 9"W x 4"H |
| Item Type Name | 2.5 GPM Replacement Triplex Pressure Washer Pump Kit for SIMPSON Gas Power Washer Pumps, 3/4" Shaft, Horizontal Engine Fit, PowerBoost (90037) |
| Item Weight | 9 Pounds |
| Manufacturer | AAA Pumps |
| Manufacturer Part Number | 90037 |
| Manufacturer Warranty Description | 5-year warranty |
| Material | Brass |
| Material Type | Brass |
| Model Number | 90037 |
| Power Source | Gas Powered |
| Product Dimensions | 12"L x 9"W x 4"H |
| Product Style | 3700 PSI at 2.5 GPM |
| Style | 3700 PSI at 2.5 GPM |
| UPC | 879399002076 |
| Unit Count | 1.0 Count |
| Voltage | 120.0 |
P**S
Perfect fit and good quality.
Easy replacement and came with everything needed. Even new bolts. Works perfectly and saved me from buying a new pressure washer.
A**R
Works as expected
2nd time i replaced this brand. Works as expected so far. Will see if this one last over a year or 2
J**S
pressure washer pump
A good pump, the only problem I had was that they did not send all the right parts luckily, I had the right parts. It is very easy to install
J**N
Good stuff
Works great thanks.
J**E
Broken pump that I cannot find where to fix it is in the warranty
How about this pump last year?March 5th, and today, the pump went out.Today is April 1826I tried to get ahold of the warranty and their phone number is nowhere to be found.Can somebody help me with this?Thank you
A**R
Power washer
Fast shipping and easy to install.
L**Y
Easy Install. No Way It's 3700 PSI.
Easy install. Doesn't seem to leak oil like the original that came with my simpson ps3228 pump did. I don't have a pressure gauge but I'm more than sure this isn't 3700 psi even with the unloader turned all the way in. My old pump was rated at 3300 and would practically life my surface cleaner off the ground. Had to crank the unloader all the way in to get good pressure to turn the surface cleaner satisfactorily. All in all, not bad. It will get the job done. It's just not 3700 psi. Maybe at best 3200 psi.
R**Y
Good price
Fit very good and is to put on
T**H
Easiest installation ever !
Undid the 4 bolts, slid off old pump, slid on this pump, tightened bolts and tested. Worked perfectly right off the bat !
A**R
Excellent to deal with
Everything was perfect
Trustpilot
3 weeks ago
3 days ago