Master Tool Repair

Old Part Numbers: 6229020500, 2881000Plastic style air filter assembly. Includes the filter housing and element, plus screws for B2800/B3800 pumps. Replace every 3-4 months if the air compressor is...

1/2" compression nut and sleeve, brass.

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.

Replace if scratched, worn or poor compression.

Kit includes the cylinder and piston seal (compression ring) which will restore compression to your pump. Check valves first to confirm they are not broken or chipped.

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...