Master Tool Repair

Air compressor cylinder ring and o-ring kit. Includes compression ring, head o-ring, and valve plate o-ring.  This tends to be a high-wear part, especially if you are in a high-particulate...

Old Part Numbers: AC-0565, Z-D21360 Z-D21360 Replacement pressure switch, 100-125PSI, 4 Port, Handle, side unloader valve, 2 plugs, hex pipe nipple. Additional parts may be required.

Compression nut and sleeve for 3/8" OD tubes.

1/2" compression nut and sleeve, brass.

Four gaskets needed for valve plate and head gaskets.  Note: Two-piece valve plate style only. No returns or refunds. If the compressor pump doesn't seem to pressurize as quickly as it should or...

Old Part Numbers: CAC-437Check Valve, 1/2" compression x 1/2" male NPT. The check valve is a one-way valve that prevents air from backfeeding from the air tank. If the small unloader (bleeder) valve...

Old Part Numbers: Z-AC-0032, AC-0032Valve plate comes with preinstalled valves and o-rings. Poor performance or air leaks out of the intake filter while the unit is running? This is probably the...

Old Part Numbers: 5130038-00, 5130024-001/4" OD brass nut and sleeve for bleeder (unloader) tube for air compressors.