Renovate your semi with components with Expertise Built In , with the OTR Haldex Style Height Control Valve that offers a comfortable ride and suspension height. Thanks to its sophisticated design, this replacement valve is able to regulate the compressed air levels of a vehicle's suspension, allowing operators to increase or decrease ride height as needed. Crafted with an innovative body to quickly replenish air levels after dumping cargo loads. FleetPride is your First Click in Heavy Duty .