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...

Tank Assembly, pancake style.

If your old one fell out, then order this part. It is slightly oversized and will not fall out like the old one.

1/2" Copper Discharge Tube w/ fittings.

Stop making a mess! This oil drain tube makes changing your oil easy. Simply remove your oil drain plug and install the metric threaded end into your engine block. Changing oil has never been so easy!Technical Documents Click here to an install video...

Old Part Numbers: 310

Complete pump assembly for the GD4000PV5H / GD4500PV5R air compressor units. Don't want to replace parts? Replace the whole pump! Important: Parts must be assembled to motor.  Need oil? Click here for synthetic and synthetic-blend air...