Old Part Numbers: AB3860400Note: Head is ONLY for the NS18S. Gaskets required.

Air compressor pressure switch, 100 PSI cut-in/130 PSI cut-out, 4 port, PSMDR21130 style. Replace the pressure switch if the unit doesn't cut on or off at the designated pressure the unit is set for. Note: This switch can be set for a maximum of 160...

Old Part Numbers: 032-0044, 2236102992Includes oil sight glass and breather with gaskets.

Washer for the air compressor's flywheel bolt. Fits Bolt#049498 

Air filter assembly without screws. Includes element with housing. Protect your air compressor pump from damage. 

Old Part Numbers: 2840050Air compressor valve plate assembly includes the valve plate with preinstalled valves, head gasket, and cylinder gasket. If air leaks out of the intake filter or if the compressor just isn't performing like it should, order this...

Filter Adapter (NS18S/T29S pumps) that uses the Canister Filter Style.

Old Part Numbers: 4116091337Complete B3800 replacement air compressor pump assembly includes flywheel, sight glass, oil breather, and air filter (no aftercooler). 3 - 5 HP. Note: This pump has a LEFT-side discharge. If your discharge tube connects to...