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Pressure Switch, 3JR71 $127.95

Westward Portable Air Compressor Parts

Product Details

Found under the following brands: Annovi Reverberi-AR, Westward, Bostitch, Black & Decker, Craftsman, Devilbiss Air Power, DeWalt, Emglo, Excell, Porter Cable, Speedaire

OEM Pressure Switch, 3JR71

Essentially the “brain” of the air compressor, the pressure switch senses the pressure in the tank and controls when the unit shuts on and off. All switches are preset for specific cut-on and cut-out pressures at the factory, so be sure to order the exact OEM part number your manual calls for, or make sure the specs are identical to your original if you do not have a part number to order by. The major brands are Furnas (Hubbell), SquareD, Condor and Huanli. Most have either a single port or four-port manifold to attach a safety relief valve, pressure gauge or an air regulator. Replace this if the unit doesn’t cut on and off at the specified pressures for your unit, if it leaks or if the copper contacts inside are corroded or burnt. 

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Now is the best time to buy in bulk. Not only will you save money on shipping and have a backup in case the part breaks in the future, you'll also save 10% with our special quantity discount.


This item fits the following models:

Air Compressor Parts - 3JR71 - Type 0
Air Compressor Parts - CPF6020
Air Compressor Parts - ACBF630 - Type 0
Portable Oil-Free Electric Air Compressor Parts - CPF4515
Portable Oil-Bath Electric Air Compressor Parts - CPL6025
Portable Oil-Free Electric Air Compressor Parts - ACBF630-1 - Type 1
Portable Oil Free Electric Air Compressor Parts - C5100-0 - type 0
Wheeled Portable Oil-Free Air Compressor Parts - CPF6020-WK - type 0
Wheeled Oil-Bath Air Compressor Repair Parts - CPL6025 - type 1
Wheeled Oil-Free Air Compressor Parts - CPF4515 (0) - type 0

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