Replacement alternator belt?

[Car Nut]

I have a 2003 CK20 hydro. Need to replace the fan/alternator belt. Installed one says DAE DONG HM 40.3 This belt is riding down in the pulleys & has no more adjustment. Wondering if it's not even the correct one. Called local parts guys. They're unable to cross it. Any idea what dayco or major brand belt I could use? Thanks!

 

[Car Nut]

Yeah, tried that already. Got two wrong belts in the process. That's why I'm trying to find a known replacement brand & part number.

 

[Car Nut]

Agreed. All you can find around here are AZone, Advance, etc. Good old mom & pops are history. Plus, as stated earlier, I'm not sure it had the correct one on it in the first place.