The Hendrickson 11.5" Non-Delay Height Control Valve Kit is designed to provide superior performance and durability for your vehicle. This kit uses an advanced shear-seal design to ensure accurate air flow, providing high air flow and a proportional response. This kit helps to prolong air spring and shock absorber life, reducing wear and tear and the need for frequent maintenance and repairs. With this kit, you can be sure that your vehicle is running at its best. FleetPride is your First Click in Heavy Duty®.