Old Part Numbers: 68-4-21/8" male NPT x 1/4" compression adapter for air compressor unloader/bleeder line. A very common adapter to attach the 1/4" OD unloader/bleeder line from the unloader valve on the pilot valve to the pump head.

1/2" brass compression nut and sleeve. 

Four gaskets needed for valve plate and head gaskets.  Note: Two-piece valve plate style only. No returns or refunds. If the compressor pump doesn't seem to pressurize as quickly as it should or is leaking in between the head, valve plate, cylinder,...

Old Part Numbers: 5130038-00, 5130024-001/4" OD brass compression nut and sleeve for bleeder (unloader) tube for air compressors.

B5900/B5000 Valve Plate Assembly. Item comes in 2 separate packages. B5000 and B5900 pump now use the same valve plate. Poor performance or air leaks out of the intake filter while the unit is running? This is probably the problem. Note: This assembly is...

Gasket for bottom oil pan of air compressor pump. If the compressor pump doesn't seem to pressurize as quickly as it should or is leaking in between the head, valve plate, cylinder, or crankcase while running, there's a good chance you need to install...

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.