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Your cart is empty.Engineered to surpass expectations, the 90039 AAA Professional Triplex Pump is highly efficient and minimizes engine load while delivering top performance. This easy-to-install pump replacement kit is for gas pressure washers* with a horizontal engine and a 1" diameter shaft, such as the Honda GX270. This pump can produce up to 4000 PSI at 3.5 GPM. The 90039 is designed with dual oversized ball bearings to reduce friction and allow for long lasting performance in the toughest cleaning environments. The 90039 features a stainless steel integrated unloader featuring our easy-start system. (*Check your pressure washer's inlet and outlet orientation to ensure compatibility)
5 stars
2025-08-07 17:24:03
Worked wellPump replacement was straightforward. Good pressure
JJ Gibbs
2025-05-30 18:52:10
If there were zero stars that’s what this pump would get. This was suppose to be a higher quality pump but didn’t last for 20-25 of use. Leaking oil everywhere. Basically a $370 piece of trash now.
Customer
2025-05-16 10:56:53
I forgot just how powerful this pump produces water pressure, mine has been going out so long that it surprise me with sower arms. Last pump, exactly the same lasted 7 years with periodic usage.
jim
2025-05-15 13:17:52
Just as it said. Fit and works perfect
chancewane
2025-04-27 14:44:34
Power washer
Brittany Geary
2025-04-26 16:15:30
After a repair shop telling me it would be $750 on getting pump replaced I went a different route and found this pump for much cheaper!! After the quick delivery and the 15 mins it took to change out, I’m so glad I did!! I’m not using it day in and day out but ran it pretty hard as soon as it came in and has done everything I could ask for straight out of the box!! Definitely recommend if needing a new pump to replace your old one!! I have it on a Honda GX270 that was sold to me as cub cadet cc4033 unit
Josh Newman
2025-03-19 14:36:28
This piece of trash was broken right out of the box. I foolishly put it aside in the garage and didn’t install and test it before the return window closed. I installed it today and the pump oil window instantly filled with milk as the seals inside clearly weren’t installed correctly. I highly recommend you look elsewhere. This pump is trash
Outlaw JR James
2025-03-18 11:20:25
Great pump. Purchased this to replace the 3500psi Giant Pump that just wore out. Fit perfectly and easily on my Honda GX390 Engine with 1" (25.4mm) shaft. Cleaned quite a bit today, fence driveway, and having 4000psi certainly spead up the jobs. Based on your engine, make sure this pump will fit your bolt-up pattern. I ended up investigation this pump on several websites, including simpsoncleaning.com. pressurewashersdirect.com to get the specs. Took less than 10 minutes to remove old pump and install new pump. Simple. And don't forget to apply liberally anti-seize to the shaft and key.
Ronaldo Mendez
2025-02-17 13:37:31
Perfect, good steady preassure easy to ensambly
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