Prepare your semi to be Ready for the Road Ahead™, with the Bendix E-6 Series 3/8-18" NPT Foot Brake Valve that provides advanced stopping power in all types of conditions. Once the brake pedal is engaged, this replacement valve works to control the air pressure in the brake mechanism - allowing them to engage or release. Built with exact OE standards to provide a seamless fit. FleetPride is your First Click in Heavy Duty®.