B4900 Head Gasket Kit. Kit includes the head gasket, inner valve plate gasket, cylinder gasket, two intercooler gaskets, and discharge tube adapter gasket (total of 6). A little silicone gasket cement around the outer edges helps. NOTE: Due to the...

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...

Old Part Numbers: 6210717280Valve plate assembly (includes inner gasket and valves).  If air leaks out of the intake filter or if the compressor just isn't performing like it should, order this kit. A loss of pressure or slow pressurization is...

Old Part Numbers: 4950055Complete air compressor gasket kit includes valve plate gaskets, intercooler gaskets, cylinder gasket, base gasket, bearing housing gaskets, and aftercooler gasket. If the compressor pump doesn't seem to pressurize as quickly as...

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...

We recommend ordering the gasket kit, as it will save you money and will ensure that you have all of the head gaskets. We always recommend replacing all head gaskets at the same time, as the other gaskets will have been compromised once the head is...

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