Product review (5 stars): Quick fix
Our dryer drum belt snapped while drying a bunch of laundry.  Got the machine apart, pulled out the broken belt, got the part number and found the replacement on Amazon.  I'm not sure why, but the order arrived within a few days with free shipping even though we didn't pick fast shipping.  Put in the new belt, fit perfectly, dryer worked perfectly.  It's been about 2 months now.  The repair saved us at least $200 for a home repair service call, and more if we were to have bought a new dryer.