Doorking 2600-779 Swing Crank Arm Extended cylinder The LiftMaster K41-0078-000 EMI board

The LiftMaster K41-0078-000 EMI board with cover kit is the correct factory replacement for maintaining electrical stability and component protection in HDSL24UL and HDSW24UL heavy duty gate operators

The LMRT is UL-listed and includes keys for secure operation

Durable and reliable design for long-term performance

Application: Commercial door operators and access solutions

Doorking 2600-779 Swing Crank Arm Extended cylinder The LiftMaster K41-0078-000 EMI boardExtended Swing Crank Arm for DoorKing Gate Operators The DoorKing 2600 779 is an extended swing crank arm used in the drive linkage of 6050, 6100, and 6300 series swing gate operators. Responsible for transferring mechanical force from the operator to the gate linkage assembly, this component plays a vital role in ensuring smooth gate articulation. Identified in DKS diagrams as the Swing Crank Arm Extended, it is constructed to withstand high cycle