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Craftsman Check Valve 031-0094 $10.05

921 Craftsman Air Compressor Parts

Product Details
031-0094 - Check Valve
Craftsman
Brand: Craftsman
Part Number: 031-0094

Description:

If your pressure switch is leaking at the unloader valve, replace this part. 

Does your air compressor fill up the tank and when it tries to restart, it stalls and then “kicks” the electrical breaker? Does your on/off pressure switch leak from the small unloader valve (on the side or bottom of the switch) after it cuts off, and then continues to cycle on/off? The check valve is one of the most common parts that fails on a compressor and replacing it should rectify these problems. It is a one-way valve that lets air in (but not out), of the tank. Usually there is a diaphragm or a ball and spring inside the valve, and it’s easy for debris and rust to form build-up which will cause the valve to stick open. A new check valve can solve multiple problems at once.

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This item fits the following models:

Air Compressor Parts - 921.164720
Oil-Free Single-Stage Electric Air Compressor Repair Parts - 921.16473



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