Rolair

Old Part Numbers: 031-0077, FC347043000, MF347043000Check Valve. Replace if unit leaks continuously around pressure switch or compressor struggles upon re-start. If your pressure switch is leaking...

Comes with paper element.

Original OEM SquareD replacement Pressure Swtich. Features a 1/4" Male NPT Manifold, 1/4" Compression Unloader Valve, Manual On/Off Lever Switch, and a pressure setting of 105/135 PSI. Replace the...

If you start to hear knocking from your pump, then you need to replace your bearing inserts. Check crank to make sure it is not damaged.

Located between Intercooler which leads to tank and pump head. (for newer non-gasket style) (ea.) - not shown.