The Genie 21123B.S is a legacy emergency release cord for Genie garage door openers designed to fit 7-foot door configurations with an approximate cord length of 45 inches. The emergency release cord connects to the carriage and trolley assembly, enabling manual disengagement of the door from the drive train during a power outage or opener malfunction. This part carries legacy identifiers 60-21123B, 80-21123B, and 18-21123B, all of which have been superseded by the current standard 21123F.S for 7-foot and 8-foot door applications. For 12-to-14-foot door heights, the correct service part is 21123G.S. GE-21123B.S is stocked as a direct replacement for systems originally built with the 21123B-series cord.
A: The 21123B.S has been superseded by 21123F.S, which covers standard 7 ft and 8 ft doors. The 21123B.S is still listed as a legacy service part for 7 ft models.
A: The 21123B.S is approximately 45 inches long and is intended for 7 ft door height models.
A: The 21123G.S is the correct emergency release cord for 12-14 ft doors. The 21123B.S is designed only for 7 ft models.
A: The emergency release cord allows manual disengagement of the door from the opener carriage, enabling the door to be operated by hand during a power outage or mechanical failure.
A: Replacing the release cord is typically straightforward - disconnect the old cord from the carriage trolley release mechanism and attach the new cord in the same position. Consult your opener manual for model-specific instructions.
