KONE AMD D10 Door Motor KM903370G03 KM903370G04

KONE AMD D10 Door Motor KM903370G03 / KM903370G04 is used in KONE elevator car door operator systems.

This product is part of the KONE AMD door operator motor range. It is used to drive the car door opening and closing movement through the geared motor, door coupler, belt system, and door operator mechanism.

In the elevator spare parts market, this product may also be searched as:

• KONE AMD D10 Door Motor
• KONE Door Motor KM903370G03
• KONE Door Motor KM903370G04
• KONE Elevator Door Operator Motor
• KONE Geared Door Motor
• KONE Complete Motor Assembly
• KONE Lift Door Drive Motor
• KONE AMD Door Motor

The main model references for this page are:

• KM903370G03
• KM903370G04

Related market references may include:

• 903370G03
• 903370G04
• DPM57BL54.D1
• KM903375G03
• KM903375G04
• KM602748G03
• KM602748G04
• KM89717G06

These related references are useful for search and quotation matching, but they should not be treated as direct replacement confirmation. The correct motor must be selected by the old motor label, AMD door system type, coupler direction, connector layout, and door operator installation position.

G03 and G04 Are Not the Same Direction

KM903370G03 and KM903370G04 are commonly used as a left and right motor pair in the AMD D10 door motor group.

KM903370G03 is usually searched as the left-side version.

KM903370G04 is usually searched as the right-side version.

This point is more important than the appearance of the motor body. A left-side and right-side motor may look very close from the outside, but the coupler position, cable outlet, mounting direction, and door operator installation may be different.

Before ordering, buyers should confirm whether the old motor label shows G03 or G04. If the old motor is missing or the label is unclear, photos of the door operator and coupler side should be provided before quotation.

What This Motor Does in the Door System

KM903370G03 / KM903370G04 is not a traction motor. It is a door operator motor.

Its work is related to the door movement itself: starting, opening, closing, slowing down, and stopping at the correct position. The motor works together with the door controller, geared transmission, belt, pulley, door coupler, hanger rollers, door track, door vane, and door protection device.

If the motor does not match the original door system, the elevator door may show unstable movement, abnormal noise, poor closing force, repeated reopening, or door operator fault after installation.

For this reason, this motor should be matched by the complete KONE model number instead of only by size or shape.

How to Avoid Mixing It With Other KONE Motors

KONE door motors can look similar, but different model groups may belong to different AMD door systems.

KM903370G03 / KM903370G04 should be positioned as AMD D10 door motor references.

KM903375G03 / KM903375G04 are more suitable for AMD D15 door motor pages.

KM601370G04 is more related to AMD D2 / AMDR2 right door motor applications.

KM89717G06 is usually searched as a KONE D1 geared door motor.

These motors may all be used in KONE door operator systems, but the door system generation, gear structure, coupler arrangement, cable outlet, and mounting position may be different. They should not be selected only because the product name says “KONE door motor.”

Details Buyers Should Send Before Quotation

For accurate supply, please provide:

• complete KM903370G03 or KM903370G04 label photo
• old motor front photo
• old motor side photo
• coupler side photo
• cable connector photo
• door operator installation photo
• AMD D10 marking if available
• door fault description from the technician
• whether the site needs left-side or right-side motor

If the old label shows DPM57BL54.D1, please also provide a photo of that marking. It may help identify the motor group, but the KONE KM part number should still be the main reference.

Door Faults That May Lead to Motor Replacement

This motor may be checked when the elevator has door problems such as:

• door motor not running
• door opening failure
• door closing failure
• unstable door movement
• abnormal motor noise
• door movement hesitation
• repeated door reopening
• door operator fault alarm
• coupler or gear response problem

These symptoms are not always caused by the motor itself. The door controller, belt tension, pulley, hanger rollers, door track, door vane, light curtain, door lock signal, connector terminals, and door operator wiring should also be checked before confirming the motor fault.

For overseas buyers, the safest way to reduce wrong supply is to send clear photos of the old KM903370G03 / KM903370G04 motor, the door operator, and the coupler position before shipment.