
Image is for illustration purposes only. Actual part may vary.
065437
The SR-5 spring brake valve (part 065437) is an anti-compounding air valve used in heavy-duty truck and trailer dual air brake systems. It controls the application and release of the spring-actuated parking/emergency brakes, preventing simultaneous service and spring brake application that could cause brake drag. This valve features multiple ports for supply, delivery, reservoir, and service lines, and includes an integral pressure protection valve. Replace when the valve leaks, sticks, or fails to hold air, compromising parking brake function.
Universal-style valve used across many makes and models. Verify port sizes (3/4 in NPT reservoir nipple, 1/4 in supply, 3/8 in delivery, 1/4 in service) and anti-compounding feature match your system. Supersedes OEM numbers like Freightliner BW 065437, Mack 745-065437, Navistar R955065437N.
Part Number: 065437
SR-5 SPRING BRAKE VALVE
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside air system