The ROP Shop OEM AR Annovi Reverberi SRMV22G28D-EZ 2800 PSI 2.2 GPM 3/4" Horizontal Shaft PRESSURE WASHER PUMP model SRMV 2.2G28 D-EZ; compatible for Generac & more Specs - Maximum Pressure: 2800 PSI. Maximum Flow: 2.2 GPM. Shaft Size: 3/4". 4 Bolt Pattern: 2 5/8" from center to center for outer holes. Maximum Fluid Temperature: 140° F. Oil Capacity: 2.2oz. Refer to images 2 and 3 for more information Includes - (1) Horizontal Pressure Washer Pump with Thermal Release Valve & Chemical Injector (both come installed), (1) Hose, (4) Bolts, & (4) Lock Washers; comes as shown in the first image Fits Honda Excell units with 3/4" shaft ONLY. Some Excell units have the 7/8" shaft and this pump will NOT work. Please note it is not recommended to run any pressure washer pump above its maximum PSI rating. Doing so can result in damage to the pump (not covered by warranty) and/or serious bodily injury Please confirm your OEM part number, along with your unit's model, spec, type/code, and serial number to ensure this is the correct part for your unit. This part may replace multiple OEM numbers, so verifying every detail is important for a proper fit. If you're unsure or have questions about compatibility, feel free to contact us!