Old Part Numbers: A12467, N137875

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...

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...

Part of piston/connecting rod kit.