2013-2018 BMW X3/X4 Engine / Transmission Module Wiring Harness 12538646727
OEM Part #: 12-53-8-646-727 (12538646727)
Actual photo
The exact part you’ll receive — not a stock photo.
$78.49
Used
Donor2018 BMW X4 · 2.0L · 63k miles
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Genuine OEM Used
SKU: 592970
Donor Vehicle: 2018 BMW X4 · 2.0L · 63k miles
2 photos
$78.49
30-Day Returns
Genuine OEM Used
SKU: 707354
Donor Vehicle: 2018 BMW X4 · 2.0L
2 photos
$79.99
30-Day Returns
- Genuine OEM — real photos
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A used OEM BMW Engine / Transmission Module Wiring Harness (OEM 8646727), also known as an engine module or transmission module wiring harness. This genuine part supersedes 2388942 and 7634067. It connects the engine and transmission control modules to the vehicle’s electrical system; a failing harness can cause drivability issues, communication errors, or no-start conditions. Removed from a 2.0L turbocharged I4 (1997cc) donor.
Compatible Vehicles
Fits 9 vehicle configurations across 1 make, 2013-2018.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 9 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2015 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2016 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2018 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2017 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2016 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2017 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2014 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2013 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2015 | BMW | X4 | SUV | 2.0L l4 Turbo |