Prepare your truck to be Ready for the Road Ahead™, with the Chelsea 442 Series 6-Bolt 21/37 Standard Mount Power Take-Off that provides enhanced power for auxiliary applications. Due to its advanced design, this replacement PTO is able generate power for auxiliary equipment by connecting to the transmission, and converting the rotational energy into power for various devices. Crafted with precision components to provide long-term dependability for semis, tractors, and hydraulic engagements. FleetPride is your First Click in Heavy Duty®.