2015-2016 Kia K900 Window Motor: A Guide to Production Dates and Part Numbers
Learn to identify the correct power window motor for your K900 by checking production dates and features to avoid buying the wrong part.
- The most critical factor when buying is the vehicle's production date; a change was made on May 16, 2016, affecting front window motors.
- Motors are specific to each door location (Front Left, Front Right, etc.) and are not interchangeable.
- Verify compatibility with special features like 'Auto Up/Down' by matching the OEM part number from your original motor.
- A used OEM motor offers significant savings ($50-$150) compared to a new OEM part ($360+) and is often a better choice than a new aftermarket part for ensuring electronic compatibility.
Symptoms of a Failing Kia K900 Window Motor
When a power window motor in your K900 begins to fail, it usually provides several warning signs before it stops working completely. Identifying these symptoms early can help you diagnose the problem before you're stuck with a window that won't close.
- Slow or Sluggish Operation: The window moves up or down much slower than it used to. This is often the first sign that the motor is wearing out and struggling to lift the heavy glass.
- Intermittent Function: You have to press the switch multiple times to get the window to move. The motor might work one day and not the next, indicating a developing electrical fault within the motor itself.
- Grinding or Clicking Noises: Hearing a clicking, grinding, or humming sound from inside the door when you press the switch points to a problem with the motor's internal gears or the regulator it drives. If you hear a sound but the window doesn't move, the motor is likely the culprit.
- Window Drifts Down or is Crooked: If a window slowly creeps down on its own or appears crooked in its track, it often means the motor and regulator assembly can no longer hold the glass in place securely.
- Complete Failure: The window doesn't move at all, and you hear no sound from the door when pressing the switch. After checking the fuse, this almost always points to a dead motor.
Diagnosing the Problem: Is It Really the Motor?
Before spending money on a new motor, it's wise to perform a few simple checks to confirm the motor is the actual point of failure.
- Check the Fuses: Consult your owner's manual to find the fuse panel and locate the fuse for the power windows. A blown fuse is a simple and cheap fix.
- Test the Switch: Try operating the problematic window from both the driver's master switch panel and the switch on the window's own door. If it works with one switch but not the other, the switch is likely the problem, not the motor.
- Listen Carefully: Have a friend press the switch while you put your ear to the door panel. If you hear a clicking or whirring sound, the motor is receiving power but is mechanically unable to move the window. This confirms the motor or regulator is bad. If you hear nothing at all, the issue could be the switch, wiring, or a completely dead motor.
Known Issues, Recalls, and Service Bulletins
As of mid-2026, there are no active recalls or Technical Service Bulletins (TSBs) from Kia or the National Highway Traffic Safety Administration (NHTSA) specifically concerning the power window motors on the 2015-2016 Kia K900.
The vehicle is subject to other recalls, including for the Hydraulic Electronic Control Unit (HECU) which can pose a fire risk (NHTSA Campaign 23V652000) and for the headlight multi-function switch (NHTSA Campaign 16V210000), but these are unrelated to the window operating system.
CRITICAL: The most significant issue for this part is compatibility. There are multiple different motors for the K900 depending on the window's location, the vehicle's production date, and specific trim options.
Buying a Used Power Window Motor for Your 2015-2016 K900
Choosing a used OEM motor is often a smart move, as it provides the exact fitment and electronic compatibility of a new dealer part at a fraction of the price. Aftermarket motors can sometimes lack the specific internal electronics required for features like 'Auto Up/Down', causing them to function incorrectly. However, due to the complexity of the K900, you must be extremely careful when purchasing.
Verifying Compatibility Before You Buy
You must verify three key things before ordering a replacement motor:
- Window Location: Motors are specific to each of the four doors (Front Driver, Front Passenger, Rear Driver, Rear Passenger). They are not interchangeable.
- Vehicle Production Date: Kia changed the front window motors during the 2016 model year. You must check your vehicle's production date on the sticker inside the driver's door jamb. The cutoff date is May 16, 2016.
- Special Features: The K900 was offered with options like 'Auto Up/Down' windows (typically on the driver's side) and automatic soft-close doors. The window motor must be compatible with your car's specific features. Always cross-reference the OEM part number from your original motor.
| Position | Part Number | Fitment Notes |
|---|---|---|
| Front Left (Driver) | 82450-3T000 | Fits models built before May 16, 2016. |
| Front Right (Passenger) | 82460-3T000 | Fits models built before May 16, 2016. |
| Front Left (Driver) | 82450-3T110 | Fits models built after May 16, 2016. |
| Front Right (Passenger) | 82460-3T110 | Fits models built after May 16, 2016. |
| Rear Positions | Multiple part numbers exist (e.g., 83450-3T000, 83460-3T000, 83450-3T010, 83460-3T010). It is critical to match the part number from your original motor or verify fitment using your vehicle's VIN. | |
What to Inspect on a Used Motor
- Electrical Connector: Check the pins inside the connector for any signs of green or white corrosion, which indicates water damage.
- Housing: Look for cracks or significant rust on the motor's case.
- Part Number Sticker: Ensure the OEM part number sticker is present and legible so you can confirm it's the correct part for your K900.
Cost Comparison: K900 Window Motor Replacement
Prices can vary based on location and supplier, but this provides a general estimate of what to expect.
| Part Type | Estimated Cost |
|---|---|
| New OEM | $360 - $530 |
| New Aftermarket | $75 - $200 |
| Used OEM | $50 - $150 |
| Shop Labor | $210 - $450 |
Replacement Overview & Difficulty
Replacing a window motor on a K900 is a moderately difficult job that a patient DIYer with basic tools can accomplish.
- Difficulty: 2.5 out of 5
- Estimated Time: 2-3 hours
- Tools Needed: Socket set, screwdrivers, plastic trim removal tools, painter's tape.
Pro Tip: Before you begin disassembly, roll the window all the way up and secure it to the top of the door frame with strong painter's tape. This prevents the glass from falling and potentially shattering once you disconnect it from the regulator.
The basic process involves removing the interior door panel, carefully peeling back the plastic weather barrier, disconnecting the electrical connector, unbolting the motor from the window regulator, and then installing the new motor in the reverse order.
Frequently Asked Questions (FAQ)
How do I find my K900's production date?
Open the driver's side door and look for a black and silver sticker on the door jamb (the body of the car, near the latch). The production date is usually printed at the top of this sticker in a MM/YY format.
Do I need to reset the window after replacing the motor?
Yes, it's very likely. For vehicles with an 'Auto Up/Down' feature, you typically need to initialize the new motor. The procedure usually involves rolling the window all the way down and holding the switch for a few seconds, then rolling it all the way up and holding the switch again for a few seconds. This teaches the system the window's upper and lower limits.
Can I replace just the motor, or do I need the whole regulator assembly?
For the 2015-2016 K900, the motor can typically be purchased and replaced separately from the window regulator assembly. This can save you money, as you are only replacing the failed component.
Will a window motor from a Kia Optima or Cadenza fit my K900?
No. While some part numbers may look similar across different Kia models, the motors are often programmed differently and have unique mounting points. You must use a motor specifically designated for the 2015-2016 K900 with the correct part number for your vehicle's build date and options.
Technical Specifications
OEM Part Numbers: 82450-3T000 824503S011 824503T000 82460-3T000 824603T000 83450-3T000 83450-3T010 834503T000 834503T010 83460-3T000 83460-3T010 834603T000 834603T010 82450-3T110 82460-3T110
12-volt DC electric motor. Compatibility is dependent on vehicle production date (pre/post May 16, 2016), window position, and vehicle options.
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Kia K900:
- Symptoms of a Failing Kia K900 Window Motor
- Diagnosing the Problem: Is It Really the Motor?
- Known Issues, Recalls, and Service Bulletins
- Buying a Used Power Window Motor for Your 2015-2016 K900
- Verifying Compatibility Before You Buy
- What to Inspect on a Used Motor
- Cost Comparison: K900 Window Motor Replacement
- Replacement Overview & Difficulty
- Frequently Asked Questions (FAQ)
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