Description
This LiftMaster K07-50637 CHAIN BOLT, Q003 is a replacement chain bolt designed to secure the drive chain on compatible LiftMaster gate operator assemblies.
In practical terms, technicians replace this bolt during routine maintenance or after wear to preserve proper chain tension and drive alignment. It functions as the anchor within the chain-drive mechanism, helping ensure smooth operation of residential and commercial gates and reducing wear on the chain and sprockets. Use this part during service to maintain reliable performance in high-cycle access control environments.
Compatibility: Designed for LiftMaster chain-drive gate operators that specify the K07-50637 chain bolt (Q003). Verify fitment by checking your model’s parts list or service manual before replacement.

