Old Part Numbers: 046-0256, 5940301Also available in the B5900Head Gaskets (4 head gaskets) or 53N0056 Gasket Kit (complete gasket kit).  We recommend ordering the gasket kit, as it will save you money and will ensure that you have all of...

Bare head for B5900 air compressor pump. Order head gasket separately.

Includes all four (4) rings for the smaller, high-pressure (HP) piston (hone the cylinders before installation). For the B5000 and B5900 model air compressor pumps. If you have a sudden loss of performance or if the pump is using too much oil, replacing...

Air compressor aftercooler gasket. Also available in the complete Gasket Kit. Note: This gasket fits multiple pumps. Confirm the gasket kit you need is for the HP51 or the B6000 air compressor pumps.

Old Part Numbers: 2901324963, 136-0049Air compressor intercooler safety valve for the B4900/T29S/B5900 pumps. If your valve leaks below the pressure listed on the side of the valve, replace this vital safety feature.Specifications 1/4" male NPT 65...

Old Part Numbers: 5050400Graphite head gasket (in between the head and the top of the valve plate) for the B5900 air compressor pump. We recommend ordering the gasket kit, as it will save you money and will ensure that you have all of the head gaskets...