3/4″ Shaft Horizontal Pressure Washer Pump, 2600-3300 PSI @ 2.5 GPM – Power W… by | Jul 21, 2026Simply Replace it and Revive your Pressure Washer! ※►Diagonal distance between screw holes is 3 5/8″. ►Hole Distance to hole is 2 9/16″. ►Key width 3/16″. ►Depth 2 5/8″.