Screw that fastens the front and back of the belt  guard to each other, and to the compressor base. THD FORMING

Old Part Numbers: 5130940-00, SSF-8080-ZNFlange nut to attach the wheel to the air tank.

Includes all 3 rings for the larger, low-pressure (LP) piston for the B5900 air compressor pump. Hone the cylinders before installation.

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...

Old Part Numbers: 5950600Intercooler gasket for the B5900 air compressor pump. Also available in the B5900Head Gaskets or 53N0056 Gasket Kit. We recommend ordering the gasket kit, as it will save you money and will ensure that you have all of the head...

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: 059-0231Air compressor head bolt, M10 x 55mm.