Genuine LiftMaster K41-0539-000 complete motor, gear box and encoder assembly for the Maxum industrial DC operators.
Fitment: LiftMaster Maxum RJDC7 jackshaft operators with manual release.
Complete drive assembly — motor, gear box and encoder in one unit.
Ordering the right part depends on the full model number, which is printed on the operator label. Call GateHouse Supplies if you are not sure — we service these units every day.