Old Part Numbers: S137-0001This complete overhaul kit for an air compressor regulator includes knob, spring, and internal service kit. Click here for installation instructions. Note: Does not include...

Air compressor check valve. 3/8" Comp x 1/2" MPT with 1/8" FPT side port.  The check valve is a one-way valve that prevents air from back-feeding from the air tank. If your unit has a hard time...

Air compressor pressure switch for original equipment switches Furnas 69MB7LY, LeFoo LF10-1H2, Senco, and others. Furnas/Hubbell-type air compressor switch. This is a trusted aftermarket part that is...

1/2" compression nut and sleeve, brass.

Old Part Numbers: 60-4-61-4, 058-0017-MAT1/4" compression nut and sleeve. Order two, one for each end of the tube.

Old Part Numbers: SRV250135, 1229W-135Air compressor safety relief valve. If your valve leaks below the pressure listed on the side of the valve, replace this vital safety feature.Specifications MPT...

Also available in the complete regulator kit SquareOvhKit. The black o-ring is ALREADY installed on the small black valve. See 'Extra Details' tab above. Includes both diaphragms, ball, o-ring, and...

Old Part Numbers: 032-0001, 032-0056Replacement Pressure Gauge, 1/8" male NPT, 300 PSI, back-mounted thread, 1.7" face. A working, accurate pressure gauge is crucial for correct operation of the...

1/2" aluminum transfer tube only. Please order compression nut(s) and sleeve(s). Note: this tube may only fit certain models. Please check your owner's manual for the correct part number(s).

Old Part Numbers: S137-0001Air pressure knob for belt-driven air compressors. Replace if broken or cracked. Make sure your spring is still there under the knob.  This part is only the knob. If you...

1/4" body x 1/4" male NPT Industrial Steel Coupler for air compressors.

Load Genie Check Valve, 3/8" compression x 1/4" 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 on or under...

Old Part Numbers: CTD1238, CTD1238SHORT, PN4671, 4480-CR1/2" Compression X 3/8" MPT with 1/8" FPT side port. If the small unloader (bleeder) valve on or under your switch leaks constantly AFTER the...

Only available in the SQUAREOVHKIT.