21QB3431M2
Suspension Ride Height Control Valve
Mack

This suspension component is integral to maintaining consistent ride height and load leveling in heavy-duty trucks. The ride height control valve adjusts air pressure within the suspension system, ensuring optimal vehicle stance regardless of load variations. It enhances ride comfort, stability, and handling by automatically compensating for uneven terrain or shifting loads. Proper functioning of this valve reduces wear on suspension components and tires, extending their service life. Its precise control helps maintain safety standards and vehicle performance, especially during heavy hauling or off-road operations. Source One Parts Center offers this reliable part, supporting your fleet’s operational efficiency and ensuring a smooth, controlled ride under demanding conditions.