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Your cart is empty.Engineered to surpass expectations, the 90034 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 GX390. This pump can produce up to 4400 PSI at 4.0 GPM. The 90034 is designed with dual oversized ball bearings to reduce friction and allow for long lasting performance in the toughest cleaning environments. The 90034 features a stainless steel integrated unloader featuring our easy-start system. (*Check your pressure washer's inlet and outlet orientation to ensure compatibility)
Maydi
2025-07-21 10:48:13
It’s not the same pump on the picture of description but it’s exactly like the original that came with dewalt 4400 psi pressure washer, it is perfect and comes with oil. My pressure is the same again.
Diana M Madrigal
2025-07-12 14:10:24
easy to install and works super
George Williams
2025-07-08 12:17:03
I have three of these pumps. Two failed after one year, my latest failed after six hours. All three failures were due to the thermal relive valve and its spring inside the valve. All of my pumps get bimonthly maintenance. The valve is a cheap low grade brass the spring is even a lower grade steel. This one part is pure junk and when it fails it can destroy the pump. I’ve had one of the one year old pumps come completely apart, throwing parts and oil in all directions. We pulled the part and found the valve stuck in the closed position allowing the pump to overheat. While the pump has a three year “limited warranty†this one part only has a 90 day warranty! DON’T WASTE YOUR MONEY
Customer
2025-04-08 20:38:58
Works great and the pressure etc is perfect for our pressure washer.
Javier Gomez
2025-03-23 16:42:58
Works great better than before
John p.
2025-03-03 14:34:46
It was very easy to change out and has worked perfectly since installed
Lilian de León
2025-02-08 19:56:29
Fue muy bueno para el trabajo de mi esposo le encanto
Tracy A. Foster
2024-12-09 10:16:19
I needed to replace the pump on my Simpson pressure washer and this fit perfectly and saved me from buying a pressure washer!
Customer
2024-11-25 16:10:12
Fue exactamente lo que necesitábamos, le quedó perfecto a la máquina de alta presión, llegó súper bien empacado. Definitivamente lo recomiendo
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