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...

Old Part Numbers: SSF-3158-1This is the screw that holds down the piston cover, on the top of the piston.

Order this if ordering valve plate or a new head.

Screw to fasten the handle to the compressor base.

Screw, #10-14 x 2.50". This is the screw for the air intake muffler cover (2 used).

Old Part Numbers: AC-0008-2, Z-AC-0008-2, AC-0008 OEM Switch.

Screw (fastener) for the motor/pump shroud.

Screw for the pump cooling fan.