Old Part Numbers: A19715, CAC-4337-1, D288261/2" male NPT x 1/2" compression check valve, with 1/4" compression adapter. For model D55167 type 1 and others. If the small unloader (bleeder) valve on or under your switch leaks constantly AFTER the...

Old Part Numbers: PG0250300BK, S1151Air compressor pressure gauge, 1/4" male NPT back-mount, 300 PSI, 2" face. Remember to apply plumber's tape to the threads.

Old Part Numbers: Z-D20596, D20596OEM pressure switch, 145/175 PSI. This switch replaces the Z-D20596. Replace the Pressure Switch if the unit doesn't cut on or off at the designated pressure the unit is set for. If the unloader valve is leaking on the...

1/2" compression nut and sleeve, brass.

Oil breather assembly for the B5900 air compressor pump.

Old Part Numbers: 1000298, 9013013Air compressor connecting rod insert. Note: For T39/B5000/B5900 model pumps, order 2 of these if replacing one rod and order 4 of these if replacing both rods.