Update your semi with enhanced control of its braking system, with the Bendix PP-1 Series 1/4"-18 NPT Push to Connect Type Dash Control Valve that ensures you're Ready for the Road Ahead. 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.