Equip your semi truck to be Ready for the Road Ahead™, with the Chelsea 12V Solenoid Cartridge Valve Assembly, a key device that controls the flow of hydraulic fluid to various systems. Due to its compact size, this replacement valve is the ideal choice for tight spaces that still require a rapid flow of hydraulic fluid. Constructed with a pivotal design that rotates up to 180°. FleetPride is your First Click in Heavy Duty®.