Product Details: Prepare your semi to be Ready for the Road Ahead™, with the Chelsea 277/278 Series Power Take-Off 12V Shift Installation Kit that enables the electronic control of the PTO system. With an electronic system, this replacement component allows for the remote operation and engagement / disengagement of the PTO system. Crafted with a universal design to be compatible with most heavy duty vehicles. FleetPride is your First Click in Heavy Duty®.