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RT-4 multi-function trailer spring brake valve RL3527GC01 applies emergency (parking) brakes upon loss of trailer supply (emergency) line pressure. 3/8 inch NPT supply, delivery and control ports. 3/8 and 1/2 inch NPT reservoir port. 55 PSI closing pressure.
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SORL develops, manufactures and distributes automotive air brake valves and truck components to automotive original equipment manufacturers, or OEMs, and the related aftermarket both in China and internationally. SORL’s quality truck parts are exported to more than 101 countries and regions in the world. SORL specializes in heavy duty truck and bus products that are primarily used in commercial vehicles weighing over three tons. SORL offers high quality truck parts and its plants have all the latest certifications, including ISO9002, QS9000, VDA6.1.
SORL offers a 1 year limited warranty on all products against defects in workmanship or material.
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 an SORL product fails as a result of 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.
Our Michigan based experts can help.