Engineered to surpass expectations, the 90037 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 3/4" diameter shaft, such as the Honda GX200. This pump can produce up to 3700 PSI at 2.5 GPM. The 90037 is designed with dual oversized ball bearings to reduce friction and allow for long lasting performance in the toughest cleaning environments. The 90037 features a stainless steel integrated unloader featuring our easy-start system. (*Check your pressure washer's inlet and outlet orientation to ensure compatibility)

Whether you’re looking for a replacement part or an accessory to enhance your cleaning experience, SIMPSON has the right one for you! Our accessories provide more cleaning options for the homeowner and professional to get the job done efficiently. Many of our accessories are designed to fit most gas and electric pressure washers.