Snow Blowers

I have a 1130sbexp Snowthrower which needs a new impeller / auger belt. Husqvarna told me the part # is 183534.

I replaced the impeller / auger belt with an Arnold which says For Husqvarna 11 HP/30" replaces Husqvarna O.E. # 532 18 35-34.

I had someone come here to replace the belt and he said it's the wrong belt because it is so tight that the auger spins without putting the handle down. It started to smoke and he immediately turned it off and said it was so tight that it engaged the brake.

I went to a local Husqvarna dealer and the manager said he has that problem frequently with Husqvarna. He told me that he has to try different size belts until he finds one that fits. He looked at the Arnold belt and said it's a well made belt.

I called Husqvarna again today and was told the correct part number is different than the part # Husqvarna gave me last week. Now, Husqvarna says the correct part # is 532426492.

I have no idea what to do.
Thanks