Fsp Whirlpool

I would like to order a rubber drive belt with 6 teeth on it, like a timing belt or a serpentine belt?

Numbers on it include, B152 or 8152? (010D)? 3389728 FSP EB MADE IN USA. Dimensions are 3/8" wide by 93 1/2" long by 1/8" thickness. How would I go about finding this belt? Belt was originally taken off a dryer and Sears does not sell this belt any more for that dryer but has gone to cheaper parts.....perhaps Whirlpool did too. So I am thinking of trying automotive parts places?

appliance repair store. check telephone book under appliances

Whirlpoor Motor Coupling