LiftMaster LA400-JB40 Junction Box with Cable for LA400 lm-miracle1 Boost Performance: Converts a standard

Boost Performance: Converts a standard control box into a transformer-run system for enhanced efficiency and durability

Installation: Replace existing lever assembly

The LiftMaster K77-37183 Replacement Cover Box is used to protect and maintain the functionality of LiftMaster slide gate operators

Model: K09-50756

LiftMaster LA400-JB40 Junction Box with Cable for LA400 lm-miracle1 Boost Performance: Converts a standardJunction Box and Interconnect Cable for Dual Swing Gate Systems The LiftMaster LA400 JB40 Junction Box w Cable is a replacement interconnect kit used in master secondary dual operator setups. It provides the junction box and cabling needed to link paired LA400 swing gate operators for coordinated operation. Please review the operator manual or parts diagram before ordering to confirm fit and compatibility. Image shown is for illustration purposes