Xtreme Outdoor Power Equipment Replaces PTO Clutch for Warner 5218-6 MTD Cub Cadet 917-3403, 717-3403, 717-3403P 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: 717-3403, 717-3403P, 917-3403 Replaces Warner: 5218-6 Specs: 1.125" Crankshaft, 6" Pulley, Counter Clockwise, A/B Belt, 205 ft. lbs torque Free Upgraded - High Temperature Bearings. TOUGH Machined Billet Pulley with Replaceable Bearing - OEM Upgrade