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Check valve switch EM37020 for Mack applications. 3/8-18 NPT female ports, 3/8-18 NPT male thread.
Our Michigan based experts can help.
PAI Industries is based in Suwanee, Georgia and manufactures high quality replacement truck parts for Mack, Fuller, Cummins, Eaton, Rockwell, Dana, and more.
For over 30 years PAI has been supplying fleet owners and independent operators through a network of independently owned and operated distributorships. They are an approved National Warehouse Distributor for genuine Hendrickson products and have decades of experience designing and field testing products.
PAI products are warranty against defects in workmanship or material for a period of 1 year.
Damage from accidents, corrosion, improper installation, incorrect applications, overloading, and custom applications that are not specified under the OEM cross references. This warranty does not cover loss of freight, loss of profit, equipment, or personal downtime.
If a PAI product failure results from a manufacturer defect, contact us at Michigan Truck Spring for support. You can contact us by phone at 1-800-358-4751 or by using our contact form.