Master Tool Repair

If your unit is using oil, or is not performing like it once did, then you may possibly need to replace the valves. Includes intake and exhaust valves and necessary gaskets. Torque to 225 in/lbs.

Old Part Numbers: ST072321AV, 058-00123/4" compression nut & sleeve (2 required). For air compressor units made before 05/20/1994.

Kit includes Connecting Rod/Piston, Piston Ring, Screw, Piston Cover and Cylinder. Everything needed to restore compression! Click here on how to install this type of kit properly. Extra...

Everything necessary to perform a valvejob (for both pump heads). No unloaders. Also includes gaskets. Includes: 610-1032 - Discharge Valve Assy 610-1031 - Intake Valve Assy 104-1007 - Valve Plate...

Everything you need for a valve job. Includes Intake and Exhaust Valves. Even includes necessary gaskets. Torque head bolts to 250 in/lbs.

B5900/B5000 Valve Plate Assembly. Item comes in 2 separate packages. B5000 and B5900 pump now use the same valve plate. Poor performance or air leaks out of the intake filter while the unit is...

This E100435 air compressor air filter kit includes an air filter element, crankcase oil breather cap, and oil sight glass.

Kit includes Connecting Rod/Piston, Piston Ring, Screw, Piston Cover and Cylinder. This kit will restore compression, but order Gaskets separately if needed!