The Genie 37559R.S Chain Drive Sprocket Assembly is a genuine OEM replacement part designed for select Genie residential chain-drive garage door openers. Positioned at the top of the powerhead, this sprocket transfers motor power to the drive chain, restoring proper lifting performance and dependable door travel when the original sprocket is worn or damaged. Verified compatibility includes popular Genie chain-drive models 1022, 1024, 1042, 2022, 2024, and 2042 (often sold under names such as ChainLift and ReliaG). It is not compatible with belt-drive units; for those applications, Genie’s belt-drive sprocket assembly 37557R.S is typically required.
As an OEM service part, the 37559R.S maintains factory fit and function for reliable operation in residential use. Installation generally involves disconnecting power, relieving chain tension, removing the opener cover, replacing the sprocket assembly, re-tensioning the chain, and verifying or re-adjusting travel limits as needed. Always follow the opener’s service manual and safety procedures during installation. This replacement sprocket assembly is an ideal match for buyers searching for a Genie chain drive sprocket, 37559R.S replacement part, or a compatible upgrade for models 1022/1024/1042/2022/2024/2042 used in standard residential garage door applications.