Blade spindle pulley for Stiga/GGP ride-on mowers Models: J98JT98JTP98SC 9812BSD 10818BSD 108SD 108 HydroSD 98SD 98 HydroSDS 108SDS 108 HydroSDS 98SDS 98 HydroSDX 108SDX 108 HydroSDX 98SDX 98 HydroMP 84TS108TX108TY118External diameter: 125 mmBore: 20mm (Not all models are listed above) Don't hesitate to contact us for any information.Original manufacturer part.