Universal Regulator: 4-port, two 1/4" FPT ports, and two 1/8" FPT ports (gauges sold separately here). The regulator controls the amount of air in your air compressor hose. Replace this if you're not able to adjust the PSI to your hose or if it leaks...

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-D29777Valve Plate Assembly, includes Valves and Cylinder Gasket (Head Gasket sold separately). Genuine Porter Cable replacement part. Broken valve causing slow pump up or no compression at all? Replace this valve plate kit...

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

Screw for the piston rod cover.

Old Part Numbers: Z-A04615, A16342, Z-D23584, N036515SV, N039790Pump and motor assembly for air compressors (does not include plastic cover or pump head). NOTE! The four bolt holes in the base of the pump, where the valve plate and head bolt onto,...

Old Part Numbers: KK-4930, KK-4949Order this kit if replacing the N017592SV Valve Plate Assembly. Used on many Craftsman, DeVilbiss, DeWalt, and other units. If the compressor pump doesn't seem to pressurize as quickly as it should or is leaking in...