LiftMaster Sprocket and Chain Kit (Q057) | LIF-K75-50117 AJ-LEF3 delayed release

delayed release

1 Battery Controller 520001

This is a Standard Arm Assembly Replacement Kit (Q104)

-20°F up to 160°F

LiftMaster Sprocket and Chain Kit (Q057) | LIF-K75-50117 AJ-LEF3 delayed releaseLiftMaster Sprocket and Chain Kit (Q057) LIF K75 50117 This is a Sprocket and Chain Replacement Kit (Q057). Compatible with various LiftMaster Commercial Swing Gate Operators; manufactured before 2016. This kit is used with standard or jumbo gearbox units. Check the manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Genuine LiftMaster replacement part. Also known as LiftMaster Q057 Compatibility