LiftMaster 41A3589-3 7' Full Belt Assembly

The LiftMaster 41A3589-3 7' Full Belt Assembly is a genuine OEM replacement belt for LiftMaster belt‑drive residential garage door openers that use a 7‑foot T‑rail/one‑piece rail system. Designed to restore smooth, quiet operation and reliable door travel, this complete belt assembly replaces a worn or stretched belt and helps maintain proper trolley movement and drive performance. It is commonly referenced by the updated kit number 041A3589-3 and is intended for use with compatible LiftMaster models built for belt drive operation.

Based on manufacturer and distributor references, this assembly is used on select LiftMaster belt‑drive openers such as the 1280, 1280R, 2280, 2280R, 3280, and 3585 series that are configured with a 7‑foot rail. It is not interchangeable with 8' or 10' rail systems, which require different part numbers. Installation typically involves disconnecting power, releasing the trolley, routing the new belt over the motor sprocket and rail pulley, setting belt tension via the turnbuckle per LiftMaster service instructions, and then reprogramming travel limits and checking safety reversal. For best results and safety, follow the opener’s manual and avoid making adjustments to door springs or counterbalance hardware unless performed by a trained technician. This OEM LiftMaster replacement is an ideal solution for maintenance, repair, or upgrade searches such as “garage door opener belt,” “LiftMaster belt replacement,” and “41A3589-3 7’ belt assembly.”