Gates is a big, high quality name in belts, hoses selling products far beyond the auto parts line.

Generally, Gates is # 1 in the US , Dayco a very close / equal # 2 mostly because they don't have the product depth of Gates.

I'm pretty sure Dayco makes a low cost line so be sure you are getting high end Dayco when buying parts.

The Goodyear name is just a licensed to a belt maker. I " think " Continental recently bought the " Goodyear " belt line but not the naming rights.

As for auto parts chain store branded belts, they are likely Dayco unless really low line but the NAPA stuff might be Gates.