Old Part Numbers: 540051, AB-0540051Air compressor valve plate assembly. Poor performance or air leaks out of the intake filter while the unit is running? This is probably the problem. Order if valve is broken. Also order head gasket and cylinder gasket...

Old Part Numbers: 6750400Head Gasket

Knob only for the air compressor air pressure regulator.

Old Part Numbers: AB-9163010, 046-0217, 9163010, ABP-9163010Crankcase oil seal for B3000, B3800, B3801, T16, and T29S model air compressor pumps. Need oil? Click here for synthetic and synthetic-blend air compressor oil to keep your compressor...

M8.

Parker screw, AB 3, 9 x 16.