The Genie 36452A.S Chain Assembly 7' is a genuine OEM replacement for Genie chain-drive garage door openers set up for standard 7-foot residential doors. It replaces a worn or damaged drive chain to restore reliable lifting and smooth door travel. Engineered to match the correct rail length and sprocket pitch specified by Genie for this part number, the assembly works with compatible Genie chain-drive systems to ensure proper tension and consistent engagement with the opener’s drive components and trolley.
This replacement part is intended for 7-foot rail configurations and is not interchangeable with belt-drive or screw-drive models, nor with rails configured for 8-foot or 10-foot doors. Always verify compatibility by confirming the part number 36452A.S in your opener’s manual or parts list. For installation, disconnect power to the opener, release the door, remove the existing chain, route the new chain over the drive sprocket and through the trolley, then set chain tension according to the Genie service instructions. After installation, reprogram/open-close travel limits and force settings, and test safety reversal using a solid test object on the floor. Designed for residential applications, this Genie replacement chain assembly provides a direct, factory-specified fit for chain-drive Genie openers that call for 36452A.S.