Ensure your vehicle is Ready for the Road Ahead™ with increased control of fluid movement and timing, with the Buyers 4-Way 2-Position Solenoid Air Valve. To manage the flow of fluids in a pneumatic system, this replacement valve automatically opens or closes to purge or dispel excess amounts. Fashioned with reactive electric components to deliver a rapid response time and reliability. FleetPride is your First Click in Heavy Duty®.