Clutch electromagnetic lawn tractor mower mower models: TC102 - TC122 INTERNAL BORE: 1" - 25.4mm EXTERNAL PULLEY DIAMETER: 133mm HEIGHT: 87mm THROAT WIDTH: 5/8" - 15. 88mm compatible CASTELGARDEN STIGA ALPINA MOUNTFIELD Original part number reference CASTELGARDEN: 118399062/0, 18399060/0, 18399062/0, 1183990620, 183990600, 183990620 HONDA: 80186-VK1-003, 80186VK1003 STIGA: 1136-0048-01, 1136004801 WARNER: 5217-20, 5217-38