The Genie 26966D.S Full Chain Pulley is a genuine OEM replacement for Genie chain-drive garage door openers that use a full-chain rail. Positioned at the rail end, this pulley guides and supports the chain to maintain proper tracking and smooth door travel, helping reduce wear and operational noise. It is intended specifically for full-chain configurations and is not for belt systems or chain/cable combination rails.
Use this part when the original pulley becomes worn, noisy, or damaged, or as part of routine maintenance to restore reliable opener performance. For installation, disconnect power to the opener, close and secure the door, relieve chain tension per the opener manual, then replace the pulley and re-tension the chain according to Genie’s specifications. Always verify compatibility by matching part number 26966D.S to your opener’s model and rail type using the manufacturer’s parts diagram. This OEM pulley supports typical residential chain-drive applications where dependable chain routing and alignment are required.