Equip your semi for the long road ahead with Expertise Built In to each part, with the OTR MV-3 Style Push to Connect Type Dash Control Valve, a key piece that provides enhanced control of its braking system. This replacement valve helps regulate how much brake pressure is applied to the wheels by controlling the flow of compressed air to various parts of the brake system. Engineered with a durable design to withstand extreme pressures and idle operations. FleetPride is your First Click in Heavy Duty .