Update your semi truck with a properly functioning air valve, with the Chalmers A1700 Series Suspension Air Valve Rebuild Kit that ensures you're Ready for the Road Ahead. To return the air valve to its original condition, this repair kit features a number of components that allow for the proper regulation and control of air throughout a system. Built with a leak-free seal to optimize the performance of the pneumatic system. FleetPride is your First Click in Heavy Duty.