The Genie 27092A.S Limit Worm Drive is a genuine OEM replacement component for select Genie residential garage door openers. This part drives the opener’s limit cam assembly so the operator knows exactly where to stop at the fully open and fully closed positions. When worn or damaged, you may see symptoms such as over‑travel, stopping short, or limits that drift out of adjustment. Replacing the 27092A.S restores precise travel control and helps ensure smoother, more reliable operation. It is commonly referenced as a limit worm, limit worm gear, or limit drive within Genie parts diagrams and is used in the limit mechanism on specific chain and belt drive powerheads.
Installation typically involves disconnecting power, removing the opener’s cover to access the limit assembly, swapping the worn drive for the new 27092A.S, and then resetting the open/close travel using your unit’s program or learn buttons per the owner’s manual. For safety, support the door and do not run the opener with covers removed. Compatibility varies by model; confirm fitment by checking your opener’s parts list or contacting Genie support with the model number before ordering. This OEM Genie limit worm drive is an ideal replacement part for maintaining accurate travel limits on applicable Genie garage door openers used in residential applications.