Replace this seal when replacing the piston / cylinder kit, and if air is leaking from the head at the outlet.

Old Part Numbers: Z-A08548, Z-D29777Broken valve causing slow pump up or no compression at all? Replace this valve plate kit to restore compression (make sure piston and cylinder are not worn as well). NOTE: The D30139 Gasket Kit must be...

Cylinder gasket. This is the gasket in between the valve plate and piston/cylinder.

Screw for the piston rod cover.

Screw (fastener) for the motor/pump shroud.

Bare pump Head (no gaskets or seals included). Torque head bolts down to 52 in/lbs.