However it's highly recommended that you get the restore kit for you tape deck, as it's not as simple as just putting in the new belt, once changed, adjustments must be made to get it back in spec so it won't damage tapes, the kits have full instructions how to do this, plus all parts needed.
https://www.thevoiceofmusic.com/cata...erBase=KTR-700
I tend to get KTR-700-2 most of the time.