Air compressor check valve. 3/8" Comp x 1/2" MPT with 1/8" FPT side port. The check valve is a one-way valve that prevents air from back-feeding from the air tank. If your unit has a hard time restarting when trying to cycle or your pressure switch...

Old Part Numbers: 5140121-073/8" compression inlet x 1/2" male NPT outlet check valve with 1/8" hole and plug. If the small unloader (bleeder) valve on or under your pressure switch leaks constantly AFTER the unit shuts off, replace this part. The check...

Air compressor o-ring gasket, bottom valve plate. This gasket does not go on the piston.

Head o-ring gasket for air compressors.

Rubber grommet for air compressor pump/motor assembly. Keeps your motor stable and reduces vibration.

Old Part Numbers: S145-0543, 145-0456Stainless steel braided tube that runs from pump to tank. Replace if leaking.  Specifications5.5" long with 3/8" compression fittings on each end

Isolator Pad (foot). Two are required.

Belt - .650" Wide, (5/8") 6" Diameter. Is your motor turning yet you have no pressure? Typically this is caused by a torn belt. To make installation easier, "walk" the belt onto the pulleys like you would a bicycle chain.