Designed for superior performance, the Simpson 90028 OEM Technologies horizontal axial cam pump kit provides high efficiency while minimizing engine load. Meant for use with gas pressure washers with a horizontal engine and a 3/4" diameter shaft, like the Kohler SH270 and Honda GS160/90, this pump replacement kit is an easy-to-install and high-performing option. Each kit includes a siphon tube with a filter, mounting bolts, a shaft key, and an instruction booklet to help you get your cleaning operations back on track quickly. The pump can produce up to 3300 PSI at 2.4 GPM and is perfect for washing walls, fences, sidewalks, and vehicles. The 90028 is both an efficient and long-lasting option for your gas pressure washer. It features stainless steel pistons to ensure longevity of the seal and a stainless steel integrated unloader with an easy-start system. The replacement pump also includes a garden hose inlet and a threaded M22 connection high pressure hose outlet. With this pump, you will never have to worry about changing the oil due to the maintenance-free crankcase. It is manufactured from fully anodized die-cast aluminum to protect against corrosion. A thermal relief valve (TRV) keeps the pump from overheating while in bypass mode by releasing small amounts of hot water and intaking cooler water, extending the life of the pump. For your convenience, this pump is compatible with a wide variety of gas-powered pressure washers with horizontal engines. Its SAE bolt pattern, hardware, and standard connections will work with many brands and models of power washers. To ensure compatibility, check your pressure washer's inlet and outlet orientations. This unit is backed by a 2 year limited warranty. Whether you're in need of a replacement part for your pressure washer or are looking for an accessory to enhance your cleaning experience, Simpson has the right part for you! Simpson accessories provide more cleaning options for professionals to get the job done efficiently. For ease of the customer experience, many of Simpson accessories are designed to fit most gas and electric pressure washers. Overall Dimensions: Length: 8 1/2" Width: 5" Height: 7 1/2" Shaft Size: 3/4"