Ensure your truck is Ready for the Road Ahead with the Haldex 3/8" PTC Dual Manifold Dash Valve, a product that offers seamless controls of your air brakes. Due to its hand-operated controls, this replacement valve is a suitable option to control the air supply in your brakes during daily use and emergency situations. Manufactured with a heat-resistant one-piece housing that contains dual buttons for the parking brake and trailer air supply. FleetPride is your First Click in Heavy Duty .