



The LiftMaster K029B0129 Belt Connector Kit is a genuine replacement component used to connect spliced belts on LiftMaster and Chamberlain belt drive garage door openers. This part is commonly used when installing or repairing shortened older-style belts found on garage door openers manufactured between 1995 and 2007.
This connector allows two belt sections to be securely joined together during belt replacement or belt modification. It is frequently required when servicing older belt drive garage door opener systems where the belt must be shortened or reconnected.
The K029B0129 is one of two components required to complete a belt connection assembly. Always verify your opener model and replacement parts diagram before ordering to ensure compatibility.
Disconnect power to the garage door opener before servicing or replacing internal components. Always consult the opener manual or parts diagram to confirm compatibility prior to installation.


We've found that replacing the majority of the hinges and installing the rest of the kit does a pretty good job of silencing the door without needing to deal with that bottom roller. If you really feel it needs to be changed, we have a separate process for that, but it's not necessary for most installations.
