I have a JDM type r motor in need of alternator belt replacement. Problem is i can't seem to find the part number to match the one i had on there. I tried 5040295, and it was too small even with the alternator completely loosened, and the 5040305 is way too loose. They're telling me 5040300 doesn't exist. Anyone got a part number i can take to the store and get? thanks. Oh, these are dayco part numbers by the way.

 

311110-P73-A01