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Sears Air compressors

Official Sears air compressor parts

Sears air compressors deliver the dependable pneumatic power you need to drive power tools and run sprayers to complete all your projects. Sears air compressors use strong motors and precision parts to provide the compressed air you need for any task. When your Sears air compressor isn't working as it should, count on Sears PartsDirect to have the replacement parts you need to repair the air compressor.

What to do when your Sears air compressor won't build tank air pressure

  • Shut the drain valve at the bottom of the tank if it's open.
  • Check for air tank leaks and replace the tank if it's leaking.
  • Tighten loose air tube fittings to prevent air leaks.
  • Check the safety valve and replace it if it leaks air.
  • Worn pump seals or leaky gaskets can prevent the pump from compressing air. Rebuild the pump if air leaks from the head gasket or the pump won't compress air when running.

Common Sears air compressor parts that you may need to replace

  • Pressure switch. The pressure switch turns the compressor on and off to regulate the tank air pressure.
  • Safety valve. Attached to the manifold, the safety valve pops open to relieve excessive air pressure when the pressure switch fails to shut off the pump at the cut-out pressure setting.
  • Unloader. The unloader is a valve installed between the pump and tank that opens to release pump head pressure when the compressor stops, enabling the compressor to restart easier.
  • Valve plate. Fixed above the cylinder, the valve plate controls air movement into and out of the cylinder to compress the air.
  • Check valve. Attached to the air tank inlet, the check valve prevents air from back flowing to the pump from the tank when the pump stops.

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