Ensure you're Ready for the Road Ahead with the Hendrickson 1/4" NPT Quik-Draw® 3-Way Auto Reset Valve, a replacement part crafted for a wide range of pneumatic applications. This auto reset air valve controls the release of the slider pins once parking brakes are fully engaged, and regulates the air supply to heated and idle engines. Once the emergency brake is released, the valve pins then reset automatically. Designed with a Quik-Draw hydraulic valve system for fast and easy operation. FleetPride is your First Click in Heavy Duty®.