1/2" MPT thread.

Improved air compressor air filter element for the PLASTIC filter assembly. Ours is better than the OEM. Metal construction and 2 seal-tight gaskets. Replacing the pump's air filter regularly is important to maintain the performance and longevity of your...

Old Part Numbers: S040-0386, 040-0386, 040-0469, 040-0386RPComplete air compressor replacement pump assembly with flywheel and air filters. V-twin, cast-iron, single-stage. Need oil? Click here for synthetic and synthetic-blend air compressor...

Old Part Numbers: 5140121-7110.5" OD (outside diameter) air compressor flywheel. Replace if warped or if any fins are damaged.

Valve plate assy including the head and cylinder gaskets. Poor performance, or does air leaks out of the intake filter while the unit is running? This is probably the problem. NOTE: This valve plate has two different types - rivet style plate and screw...

Complete gasket kit for your air compressor pump; includes head gaskets, cylinder gaskets, crankcase gaskets, bearing cover gaskets, and oil seal. If the compressor pump doesn't seem to pressurize as quickly as it should or is leaking in between the...