Replacement Electric PTO Clutch for Warner 5217-28 Steel Yard Garden Lawn Mower Engine. Engine Specifications – Inside Diameter: 1″. Pulley Diameter: 5 5/16″. Direction of Rotation: Counter-Clockwise. Belt Width: 1/2″ or 5/8″. Cool coil technology. Ultra-smooth “Xtreme Precision” machined pulley. Integrated waterproof wiring harness. See images 2 and 3 for more information. Includes – (1) Electric PTO Clutch, (1) Machined Pulley, (1) Stainless Steel Rivet (1) Wiring Harness; shipped as shown in first image. Features an oversized braking system that has approximately 20% better stopping time than Gen. 2 clutches. Friction ring starting torque is approximately 15% higher than Gen. 2 clutches. Features an integrated connection to a replaceable electrical harness. Designed for tough use. For residential and commercial applications. Torque correctly to prevent premature failure. The spacer can be removed for applications that do not require it or when the pulley is on the wrong side. The weight of the rotating pulley has been reduced by approximately 50%-100% compared to Gen.2 couplings; it has lower energy, lower inertia, better dynamic balance. It is a quality product of ROP Shop brand.