Genuine LiftMaster K41-0409-000 complete motor, gear box and encoder assembly for the Maxum industrial DC operators.
Fitment: LiftMaster Maxum JHDC12X.
For extended and continuous duty X models with the standard 2 in. shaft.
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.