Product Details: Outfit your vehicle to be Ready for the Road Ahead™, with the Hendrickson 3-Way Auto-Reset Valve with Fitting that provides reliable release of slider pins once parking brakes are fully engaged. With an automated release, this replacement valve is able to regulate the pressure within your vehicle's air suspension system. Fashioned for heavy duty use in both active and idle engines. FleetPride is your First Click in Heavy Duty®.