The Genie 27089A.S Drive Shaft Thrust Washer is a genuine OEM service part designed for the drive mechanism inside select Genie garage door opener head units. Positioned on the drive shaft stack, this thrust washer supports axial loads and controls endplay, helping maintain proper sprocket/gear alignment for smooth, reliable operation. It is intended as a like-for-like replacement where the opener’s parts diagram specifies 27089A.S, restoring correct spacing and reducing wear within the drive assembly.
Use this replacement part when servicing a noisy, misaligned, or excessively loose drive shaft assembly on compatible Genie residential openers. Installation typically requires opening the operator housing and disassembling the drive stack; disconnect power before service and follow the model-specific parts diagram and instructions. No programming is required after installation. For compatibility, match by part number in your opener’s official parts list or service manual to ensure it fits your specific model. Keywords: Genie 27089A.S, OEM drive shaft thrust washer, Genie garage door opener replacement part, drive mechanism repair, opener maintenance.