Crankcase Bottom Gasket for B3800 pump.

Filter Element only for air compressor air filter assembly for the B3800, B3801, and B4900 Pumps. Replacing the air compressor pump's air filter regularly is important to maintain the performance and longevity of your air compressor. A clean filter...

For the B3800 model air compressor pump. Includes crankcase bottom, crankcase gasket, screw, and washer. Remember to tighten the bolts down to the proper torque specs as noted by the manufacturer (which is 44.25 in/lbs)

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...

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

NS18S Air Compressor Pump Replacement, Complete Assembly with Aftercooler, Single-Stage, 3 - 5 HP. Same as B3800 except it includes aftercooler and flywheel. Aftercooler must be used.   Important: This pump has a LEFT-side discharge. If...

This allows you to drain the oil from your pump.

Old Part Numbers: 9053853-NUNOTE: the end of this drain tube is threaded, so the drain plug can thread into the end of it.