Master Tool Repair

Old Part Numbers: A19715, CAC-4337-1, D288261/2" male NPT x 1/2" compression check valve, with 1/4" compression adapter. For model D55167 type 1 and others. If the small unloader (bleeder) valve...

New style filter assembly with 3/8" threads. Includes new style air filter, head, and o-ring. Note: Do NOT order if your head has 2 holes on the SAME side of the head. This head has 3/8" FPT threaded...

Old Part Numbers: AC-0631, 892351, A19712, CTD3812If your pressure switch is leaking at the unloader valve, replace this part.

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.

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...