The Kramp 5520203 Star Slip Coupling is a genuine replacement part designed for use in agricultural power take-off (PTO) shafts. This slip coupling features a 1 3/8 inch 6-spline connection for the tractor side and a 1 3/8 inch 6-spline connection for the implement side, ensuring reliable power transmission. It is engineered to protect machinery from overload by allowing slippage when torque exceeds a set limit. Constructed from durable materials, this coupling provides robust performance and extended service life in demanding agricultural applications.