Hypro 5321 Piston Pump Rebuild Kit
To rebuild the Hypro 5321 piston pump you will need part # 3430-0144. This is the complete rebuild kit and will include everything you need.
Kit 3430-0144 Includes:
Qty Part # Description
2 1440-0010 Seal ring
2 1440-0037 Guide
2 1720-0064 O-ring
2 1720-0079 O-ring
2 2150-0027 Seal
2 2220-0039 Screw
2 2270-0042 Washer