Product Description
The Bendix 801629 R-14 Relay Valve is a heavy-duty air brake component designed for select Mack and Volvo commercial trucks. This valve controls compressed air delivery to the brake chambers, providing responsive brake application and release while helping maintain dependable braking performance.
Featuring a 4 PSI crack pressure, the 801629 incorporates quick-release and anti-compounding functionality to help prevent excessive braking forces when service and spring brakes are applied simultaneously. Its Super Ram body design includes two 1/2"-14 NPT supply ports, two active 1/2"-14 NPT delivery ports, a 1/4"-18 NPT control port, and a covered 1/8"-27 NPT balance port.
Built for demanding commercial vehicle environments, this Bendix relay valve operates in temperatures ranging from -40°F to 200°F. It is suitable for compatible rear-axle service and parking brake systems requiring the specified R-14 configuration.
Cross-references include Mack/Volvo 25174366 and Mack 20QE4197. Before ordering, verify the original valve part number, mounting configuration, port sizes, and crack pressure to ensure proper compatibility.
