3/4″ Shaft Horizontal Pressure Washer Pump, 2600-3300 PSI @ 2.5 GPM – Power Wash by | Jul 22, 2026PERFORMANCE AND DURABILITY UPGRADE 1 Professional Grade 2 Easy to Start 3 Standard 3/4″ Shaft Hole 4 Design for Power Washing. Simply Replace it and Revive your Pressure Washer! ※►Diagonal distance between screw holes is 3 5/8″.