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(888) 312-8812 Login SignupThe Mack Suspension Ride Height Control Valve quietly balances the truck’s air suspension as the load on the chassis changes. It connects to the suspension linkage where axle movement reflects the weight carried by the vehicle. It adjusts air pressure in the suspension air springs so the chassis returns to its intended ride height. This adjustment takes place constantly as cargo weight shifts or the truck travels across uneven terrain. As air flows through the suspension circuit, the Mack 25168691 meters the airflow that raises or lowers the suspension to keep the chassis level.
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