Sorry my bad - long and short - both same width/cross section - might have to contact Greenfield and see if they have it as a spare part
The part number that you require is GT00402 for the cutter deck pulley and the engine pulley is GT01973 (expensive).
We have the parts list in the parts list and manuals area of the forum and the model is Ultimo.
I have been trying to locate a generic pulley but so far no luck but I will keep you posted.
