K029B0130 is a Belt Connector Kit. This replacement kit is for use with a spliced Chamberlain® garage door opener belt. This part is commonly used when a shortened older style belt is required; common with units manufactured 1997 to 2007.
This kit is 1 of 2 items needed to complete the belt connection kit. Refer to K029B0129 for the second item required to complete kit. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility.