I'm not sure. But a number of years ago (2003 ish) I rebuilt a Boscat Nitro and had to get new belts for this which were unobtainable practically
Luckily I found the original wholesaler whom used to supply Schumacher..
www.premierbearing.co.uk Northampton branch
I think it is possibly a standard industrial belt, so if you have the original they might be able to find a suitable replacement...
Good luck
