Xtreme Outdoor Power Equipment Replaces Cub Cadet PTO Blade Clutch 717-04163, 717-04163A, 917-04163, 917-04163A - Upgrades OEM Clutch! Xtremely cool coil design runs over 20% cooler for a longer service life  plus every clutch is backed by a buyer-protection 1-year warranty Replaces OEM: 717-04163, 717-04163A, 917-04163, 917-04163A Replaces Warner: 5217-43, 5217-32 Specs: 1.000" Crankshaft, 6.000" Pulley, Counter Clockwise, 1/2" or 5/8" Belt, 80 ft. lbs torque Free Upgraded - High Temperature Bearings. TOUGH Machined Billet Pulley with Replaceable Bearing - OEM Upgrade