The LiftMaster 041D8615 Collar with Set Screws is a genuine OEM replacement component used in select LiftMaster and Chamberlain garage door openers. This collar secures a rotating or stationary component—such as a shaft, sprocket, or pulley—within the rail or drive assembly to prevent slippage, maintain alignment, and help preserve accurate travel limits. It is designed for use in compatible belt- and chain-drive systems where a locking collar is specified by the factory parts diagram.
Installation requires disconnecting power to the opener, relieving door and rail tension as instructed by the manufacturer, and tightening the included set screws to the specified torque so the component remains fixed during operation. Always verify compatibility by referencing your opener’s model-specific parts list for part number 041D8615 before purchase or installation, as using the wrong collar can affect travel calibration and safety reversal performance. This OEM replacement is intended for residential garage door opener repair and maintenance, offering a direct-fit solution when the original collar is worn, missing, or damaged.
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