Our garage door opener 5L320 V-belt from North Shore Commercial Door will replace most residential or commercial garage door opener V-belts that are 32 in. long and 5/8 in. wide. Most V-belt brands are interchangeable, but a replacement V-belt must match the size of your original V-belt. The 5L320 garage door opener V-belt is 32 in. long and 5/8 in. wide.