This is a genuine OEM sourced part which is specially designed for Chamberlain garage door openers. It is an identical replacement for a missing or a faulty chain idler pulley that was installed on a new unit. The purpose of this component is to apply tension on the chain that opens the door. Please make sure to refer to the appropriate diagrams of your model for the correct location and application of this part. This high-quality item is made of durable plastic and is sold individually. To perform this repair you will need a wrench set, a screwdriver, and pliers to take apart and reassemble the housing.

This part is available as an individual replacement. The chain spreader attaches to the gear and sprocket assembly and helps to prevent the chain from coming off. It will need to be replaced if it becomes broken and may require a screwdriver during the installation process. This is a genuine Chamberlain replacement part that is sourced from the original manufacturer for use with chain drive garage access systems.

This is an authentic part produced by original manufacturer. It is used in various garage access systems by Chamberlain and LiftMaster. This assembly includes two (2) roll pins and one (1) each of: spring washer, thrust washer, retaining ring, bearing plate, drive gear, worm gear, helical gear, and grease.

It is a genuine item that is supplied by the original equipment manufacturer for use with Chamberlain and LiftMaster garage door openers. This is an identical replacement for a missing or a damaged light socket that the bulb would connect to. Please make sure to refer to the appropriate diagrams of your specific model for the correct location and application of this component. Keep in mind this high-quality socket is made of durable materials and is sold individually.