Extended door arm kit for MX and SX commercial operators requiring greater reach. MX/SX Extended Door Arm Kit for Genie commercial overhead door operators. Mounting: Trolley carriage to door panel. OEM genuine Genie replacement part Genie OPAKDBEXT.S.
A: This kit is compatible with both Genie MX medium-duty and SX standard-duty commercial overhead door operators.
A: An extended arm is required when the standard door arm length is insufficient to reach the door attachment point due to the header height, door type, or jamb geometry of the installation.
A: Confirm the required arm reach distance by measuring from the operator carriage to the door attachment bracket before ordering, to ensure the extended arm provides the correct length for your installation.
A: No. This kit is specifically designed for MX and SX operators. Using it on other series operators such as HX or GHX may result in improper fit and unsafe operation.
A: Installation should be performed by a qualified commercial door technician to ensure proper arm geometry, spring tension balance, and safe door operation.
