The General Pump TT2028EBF is a TT Series 51 triplex plunger pump that is equipped with a NEMA 56C electric motor mounting flange, ensuring this pump can directly attach to an electric motor. This flanged triplex plunger pump can be used for a variety of high-pressure washing applications, reverse osmosis, misting applications, and for general cleaning applications. Also, this pump is commonly found on the Kodiak XR2100 and HWDE2010F pressure washers as well. The TT2028EBF pump features a forged brass manifold, solid ceramic plungers, Interpump unitized stainless steel K01 inlet and outlet valves, and a 11.2 ounce capacity, die cast, anodized aluminum oil bath crankcase. Note: For effective lubrication, you must fill the crankcase to the top of the oil gauge window with non-detergent SAE 30 oil. You need to change the oil after a 40 hour break-in-period, then every 3 months or 500 hour intervals after that. Specifications: This pressure washer pump weighs approximately 11.5 lbs. and has a maximum fluid temperature of 165 degrees F. The pump has a maximum inlet vacuum of 3' water and 3.8 EBHP horsepower. The shaft diameter measures 5/8" (16mm).