It looks like you have a return policy so the return is not in question because returns on eBay are for any reason. You mentioned the buyer said it does not fit which sounds like a not as described request for return. Sellers have had to pay return shipping for a number of years for not as described returns.
This is a tricky area because now it is a seller said it fits these models and the buyer says nope does not fit my version of that model. All eBay can do is to have both parties return and refund.
I also wanted to point out to you that after looking at your first item listed in your active listing page : you have conflicting info? You have for condition as used yet in your description you say wording like
- untested
- sold as parts only
- no returns although you do have a 14 day return policy
The condition definitions for eBay motor listing is clear about what used is defined as and it says - Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended.
Here is a link to review for future use ebay category condition definitions
You might need to consider spending some time clearing up some of the info to be correct because these listing will always work against you in returns requests.
Good Luck Selling!
