K1D8387-1CC Expansion Board
Liftmaster K1D8387-1CC Expansion Board
used for 2016 and on Liftmaster Dc operators with U suffix
Backwards compatible for older second generation DC units bit will require monitored safety edge or safety eyes.
K77-37693 Wire Harnesses
K77-37693 Wire Harnesses (main board to power board, main board to
ground, main board to transformer, and power board to transformer)