The Genie 27140A.S Carriage Stop is a genuine OEM replacement part for Genie garage door opener rail assemblies. Installed on the opener’s rail, this stop provides a fixed physical limit for the trolley/carriage, helping prevent over-travel and protecting the operator head and drive components. It is designed for select Genie chain- and belt-drive systems and is commonly used in residential applications as a direct replacement when the original stop is missing, damaged, or worn. Using an authentic Genie part maintains proper fit and function and supports reliable, consistent door travel.
Use this carriage stop to restore safe, predictable trolley movement after rail service or component replacement. Installation typically involves disconnecting power, placing the stop at the required position on the rail, securing it per the opener’s service instructions, and then verifying or reprogramming travel limits and force settings according to the owner’s manual. Compatibility varies by model, so confirm 27140A.S (also noted as 27140A-S or 27140AS) on your opener’s parts diagram or with Genie support before ordering. Ideal keywords for research include Genie carriage stop, trolley stop, opener rail stop, garage door opener replacement part, and OEM 27140A.S.