There's a post on the website "Yesterdays Tractors" that might give you some help. Here's a link:

https://www.yesterdaystractors.com/cgi-bin/viewit.cgi?bd=gardent&th=5827

The post is titled Wizard Rototiller. Happy holidays.

I looked at the link you posted with no luck. none had that info.(thanks though) Amazingly it took me several days to find a manual with parts breakdown before i found one that resembled the tiller I found. I found a fwd belt but can only find a 1/2"w when it should be 3/8" for the reverse.

I actually took it for a spin being i planned to till my garden for the fall. Not bad!

To think the owner tossed it because 1 wheel bearing popped out so it wobbled.