Replace this Tube Seal when replacing the Piston/Cylinder Kit, and if air is leaking from the head at the outlet.

Hose Clamp for the Discharge (Outlet) Tube/Hose.

Old Part Numbers: A19714, D27022Check Valve, 1/2" male NPT x 1/4" hose barb. If your compressor constantly leaks after it shuts off, this is probabably the problem. If this one-way check valve is clogged or defective, air will backfeed from your tank, so...

Old Part Numbers: Z-A04615, A16342, Z-D23584, N036515SV, N039790Pump and motor assembly for air compressors (does not include plastic cover or pump head). This is a horizontally-mounted pump (it sits horizontally in the plastic clamshell shroud)...

Old Part Numbers: CAC-1213Isolator for the pump. Keeps the pump from vibrating against the plastic shroud.

Screw for the pump head. NOTE: Torque head bolts down to 52 in/lbs.

Screw that fastens the front and back of the belt  guard to each other, and to the compressor base. THD FORMING