The Linear 227966 Door Arm – Straight is an OEM replacement component for Linear garage door opener systems that use a two-piece door arm linkage. This straight arm connects the opener’s trolley assembly to the top door bracket and works in tandem with the companion curved arm (sold separately) to transfer the operator’s motion to the door for smooth opening and closing. It is intended for use on compatible Linear trolley-style operators on sectional overhead doors in residential or light commercial applications, providing the correct geometry and fitment that aftermarket parts may not match.
Use this factory part number 227966 when replacing a worn or damaged straight door arm to restore proper operation. Installation typically involves attaching the arm with the appropriate clevis and cotter pins per the opener’s manual, with the door in the closed position. For safety, disconnect power, ensure the door is properly balanced, and recheck travel and force limits after replacement. Confirm compatibility by referencing 227966 in your specific Linear operator’s parts diagram or service documentation. Common search terms include Linear garage door opener door arm, straight door arm replacement, and Linear OEM door arm.