Xtreme Outdoor Power Equipment Replaces Cub Cadet MTD PTO Clutch 717-3385, 717-3385A, 717-3385AP, 717-3385B, 917-3385, 917-3385A, 917-3385B Free Upgraded Bearings ! 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: 717-3385, 717-3385A, 717-3385AP, 717-3385B, 917-3385, 917-3385A, 917-3385B Replaces Warner: 5217-42, 5217-14 Specs: 1.000" Crankshaft, 5.34" Pulley, Counter Clockwise, A/B Belt, 80 ft. lbs torque Free Upgraded - High Temperature Bearings. TOUGH Machined Billet Pulley with Replaceable Bearing - OEM Upgrade