Bosch WTE84103GB/08 Con-dryero

This machine has 2 drive belts.. I am trying to fit the smaller of the 2 belts…its appears to be to tight to pull over the plastic wheel.. not sure if its a stretch belt ??…I am using quite a bit of force, worried about breaking the plastic pulley wheel…!! also the numbers on the belts are a bit different …the one I ordered from connect writing on the belt 330 PHE … The one taken off : BSH9000 008 181 5HE 330.. 3607 …the one taken off is slightly longer…my be stretched a bit, not sure ..the org as snapped..any advice welcome..cheers