Z-AC-0789 / AC-0789 Pressure Switch Porter Cable 175/145 **Genuine

Genuine OEM Pressure Switch Z-AC-0789 / AC-0789. Part # Z-AC-0789 175 / 1 45  PSI , 4 Port ,  24amp  120V / 240 T wo Pole Switch Includes The Switch Cover. Equipped with Unloader Valve MADE IN THE USA Fits Too Many Models to List:   If you are unsure if this is the correct switch, please send us your model type / serial number and we will be happy to help.       This Is An Original Equipment Part, NOT an Aftermarket. If your air compressor fills up to pressure, but struggles to restart or the unloader valve on the pressure switch continues to release air, your check valve is likely the cause. You can run a quick test by running the compressor up to full pressure, once it shuts down disconnect the power to the unit. Loosen the nut on the air exhaust tube at the pump head...there should be no air present.   If you have air present, the check valve is bad and needs to be replaced. If you would like further assistance, please contact us. Packed With Care We Have a Large Inventory of Air Compressor Parts Available for Many Brands. We are an Authorized Warranty and Service Center for Many Brands Parts are Backed by The Manufacture's Warranty We will be happy to assist you in finding your correct part(s). Please send us your Model and Spec number. We will look them up and get right back to you with your information What you see online is only a fraction of what we carry.  We stock thousands of parts. Please contact us if you can’t find what you’re looking for and we will be happy to help. We have been in the industry for over 30 years and we are committed to give the best customer service possible.