2018-2023 BMW X3/X4 Engine / Fuel Injector Wiring Harness 12518658838
OEM Part #: 12-51-8-658-838 (12518658838)
Actual photo
The exact part you’ll receive — not a stock photo.
$46.99
Used
Donor2019 BMW X4 · 2.0L · 82k miles
✓ Free Same Day Shipping on orders by noon CT
3 Available — Select Your Part:
Genuine OEM Used
SKU: 536665
Donor Vehicle: 2019 BMW X4 · 2.0L · 82k miles
2 photos
$46.99
30-Day Returns
Genuine OEM Used
SKU: 705725
Donor Vehicle: 2019 BMW X3 · 2.0L
2 photos
$49.49
30-Day Returns
Genuine OEM Used
SKU: 623832
Donor Vehicle: 2019 BMW X3 · 2.0L
2 photos
$55.49
30-Day Returns
- Genuine OEM — real photos
- 30-day returns on eligible parts
- eBay Top Rated · 100,000+ positive ratings
- Ships from our own indoor warehouse
This used OEM Engine / Fuel Injector Wiring Harness (BMW part number 8658838, also replaces 12518658838) connects the fuel injectors to the engine control system. Also known as an engine wiring harness, it is designed for BMW X3 and X4 models with the 2.0L turbocharged four-cylinder engine. A failing injector harness can cause misfires, rough idle, or injector circuit faults.
Specifications
| Fits Vehicle Model | X3, X4 |
| Fits Vehicle Make | BMW |
| OEM Part No | 12-51-8-658-838 (12518658838) |
| Compatible OEM Part No | 12-51-8-658-838 |
| Category | Wiring / Harness |
Compatible Vehicles
Fits 10 vehicle configurations across 1 make, 2018-2023.
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 10 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2022 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2020 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2018 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2019 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2021 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2022 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2023 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2020 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2019 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2021 | BMW | X4 | SUV | 2.0L l4 Turbo |