Having worked on more JD units I have found that they are the worst at excepting non-OEM belts. Most guys who come to this forum have no way to lookup the belt specs, OEM or aftermarket, and just rely on what the counter guy tells them. On top of that most counter guys are there to sell parts and trying to find a cross reference is way to much work for most of them. Now think about the guy who types in the descriptions for Fleabay and Amazon, Star I know you know what I’m talking about.