The LiftMaster 41C76 Belt Cap and Sprocket is an OEM replacement part engineered for LiftMaster and compatible Chamberlain/Craftsman belt-drive garage door openers. This assembly restores proper belt engagement at the opener head by replacing a worn or damaged drive sprocket and the belt cap that secures the belt at the trolley connection. Replacing these components can resolve slipping, grinding, or inconsistent travel caused by a rounded or stripped sprocket, helping your residential garage door opener run smoothly and quietly.
Designed for select belt-drive models, the 41C76 is intended for use on openers that utilize a top-mounted drive sprocket and a standard belt/trolley connection as referenced in the owner’s manual. Installation typically involves disconnecting power, relieving belt tension, removing the opener cover, swapping the sprocket and belt cap, and re-tensioning the belt; travel and force settings may require readjustment after replacement. Always verify compatibility by checking your opener’s parts list for 41C76 before ordering and follow all safety precautions during service. This genuine LiftMaster replacement part is a reliable solution for homeowners and technicians seeking a precise, like-for-like repair for belt-drive opener systems.
Compatible with LiftMaster 2500, 2500B, 2500D, 3500 and 3850 models