Replace the transformer on your LiftMaster LA400 swing gate operator with the LiftMaster K74-replacement transformer from Garage Door Supply Company. The transformer is what provides a steady charge of power to your gate opener battery through the control board. This plug-in replacement transformer includes a mounting plate and wires. If you have compatibility or installation questions, our staff can help you.
- Works with LiftMaster LA400 swing gate operator
- Plug-in transformer replacement
- Includes mounting plate, wires