This 5L290 V-belt for commercial and residential garage door openers is from our bargain-buys collection of replacement parts at North Shore Commercial Door. The garage door opener 5L290 is 29 in. long and 5/8 in. wide. While most brands are compatible with our 5L290 V-belt, make sure the original V-belt on your opener is also 29 in. long and 5/8 in. wide. Check your owner's manual, or look for the size stamped on your original belt. Trust America's favorite garage door opener parts store with all your replacement parts needs.