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Enjoy optimal spring brake performance and efficient air management with the top-of-the-line WABCO Air Brake Inversion Relay Valve. This component incorporates a pressure inversion function, allowing compressed air from the trailer's reservoir to be delivered to the spring brakes when the parking brake is applied. This functionality ensures the spring brakes are set with consistent pressure, even when the primary air system pressure may be depleted. Built to deliver exceptional durability and reliable performance, the WABCO 971-899-120-0 ensures consistent spring brake application, reliable parking brake engagement, and improved air management within the trailer system.
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Whether it’s for cars, buses, trucks, or trailers, WABCO® is at the frontline at developing and providing products and systems to make vehicles safer and easier to control. Founded in 1869, WABCO is a major supplier of braking, stability, suspension and transmissions in the Americas and beyond. The company is recognized as introducing the modern air brake system in 1869, and continues to lead the industry in air brake design and production for the heavy duty and commercial vehicle sectors. Today, WABCO operates as a division of the German auto parts maker ZF and employs 16,000 employees in facilities in 36 countries worldwide.
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