Replaces JOHN DEERE PTO Clutch AM126100 5219-1 GX255 GT225 GT235 GT235E GT245 LT190 SST15 SST16 SST18 LX255 LX266 LX277 LX279 LX280 LX288 LX289 - w/ 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: AM126100 Replaces Warner: 5219-1 Specs: 1.000" Crankshaft, 5.45" Pulley, Counter Clockwise, 1/2" or 5/8" Belt, 125 ft. lbs. torque Free Upgraded - High Temperature Bearings. TOUGH Machined Billet Pulley with Replaceable Bearing - OEM Upgrade