308418003KIT 7/8 Pressure Washer Pump 2600 PSI Powerstroke PS80903ANEW Homelite Pressure Washer Pump. 678169004 Thermal Relief Valve. Horizontal Triplex Plunger Pump. 2.4 Gallons Per Minute. Mounting Bolts are 2-5/8 between centers. This Pump is used on the following models. THANKS AND HAVE A GREAT DAY!!! The item “308418003KIT 7/8 Pressure Washer Pump 2600 PSI.