Equip your semi to be Ready for the Road Ahead , with the Bendix PP-DC Series 3/8" Push to Connect Type Dash Control Valve, a key piece that provides enhanced control of its braking system. Due to its advanced design, this replacement valve is able to help regulate how much brake pressure is applied to the wheels by controlling the flow of compressed air to various parts of brake system. Constructed with a durable design to withstand extreme pressures and idle operations. FleetPride is your First Click in Heavy Duty .