The Genie 39277R Chain Drive Sprocket is a replacement part specifically designed for Genie garage openers. It is compatible with various models such as Chain Glide Connect, Chain Drive 550, and Chain Drive 750, ensuring a perfect fit for your overhead door. You can trust that this high-quality sprocket will keep your garage opener functioning smoothly. Upgrade or repair your garage door with this reliable and durable chain drive sprocket from Genie.