Product Details: Equip your semi truck to be Ready for the Road Ahead™, with the Bendix AD-IP® / AD-IS® High Boost Purge Valve Assembly Replacement Kit, a key set that ensures the pneumatic valves are properly-functioning. With a specialized design, this replacement kit simplifies the removal of moisture and other contaminants in the pneumatic system. Manufactured with high-quality materials for enhanced durability and reliability. FleetPride is your First Click in Heavy Duty®.