Outfit your semi truck to be Ready for the Road Ahead™ with enhanced control valve performance, with the Haldex 19-5/8" Maximum Round Height Control Valve Linkage Hardware. By connecting the control valve to an actuation component, this replacement linkage helps increase the performance of air suspension valves, dump valves, and more. Constructed with a universal fit design to be suitable for a wide range of applications. FleetPride is your First Click in Heavy Duty®.