Kit for one service on pump. Kit includes one plastic style air filter and 1 Qt. of 30W compressor oil. NOTE: Not for NS18S pump, which uses a different (round) air filter.

Old Part Numbers: SRV250150Air compressor safety relief valve, 1/4" MPT, 150 PSI, ASME. If your valve leaks below the pressure listed on the side of the valve, replace this vital safety feature.Specifications MPT Inlet: 1/4 in. FPT Outlet: 3/8 in. Preset...

Old Part Numbers: AB3860400Note: Head is ONLY for the NS18S. Gaskets required.

Air compressor pressure switch, 100 PSI cut-in / 130 PSI cut-out, 4 port, MDR21-style with 90-degree quick-connect unloader valve and auto on/off lever. Replace the pressure switch if the compressor no longer cuts in or out at the designated pressure...

Air compressor v-belt, 4L560, 56". Replace if frayed or slipping.Specifications A-type belt, 1/2" wide Outside Dimension: 56" "A" Belt Conversion: A54

Old Part Numbers: 032-0044, 2236102992Includes oil sight glass and breather with gaskets.

Washer for the air compressor's flywheel bolt. Fits Bolt#049498 

For AO Smith