LiftMaster CHAINTENSDC MAXUM Chain Tensioner Kit SB-B7 ensuring stability and preventing excessive

ensuring stability and preventing excessive gate swing or operator wobble

LiftMaster 1707AC

Rust Proof Hardware

Two LiftMaster Arm Bolts LIF-MA022

and an automatic adjustable close timer

LiftMaster CHAINTENSDC MAXUM Chain Tensioner Kit SB-B7 ensuring stability and preventing excessiveLiftMaster CHAINTENSDC MAXUM Chain Tensioner Kit CHAINTENSDC is a Chain Tensioner Kit. For use with various LiftMaster MAXUM DC Standard Duty and Industrial Duty Commercial Door Operators; manufactured after 2023 only. Refer to the installation manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Genuine LiftMaster service kit.