Ensuring you are Ready for the Road Ahead , the Shur-Co 12V Continuous Duty Solenoid Conversion Kit is a universal replacement for a variety of tarp systems on the market. When used with a rocker switch in the cab, this solenoid provides a superior life cycle to a rotary style switch. This heavy duty solenoid conversion kit boasts maintenance-free operation, as well as lower amperage draw, reducing strain on the electric tarp system components and keeping your load secure. FleetPride is your First Click in Heavy Duty .