2018-2023 BMW X3/X4 Engine Wiring Harness (MODULE 1) 12518681952
OEM Part #: 12-51-8-681-952 (12518681952)
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This used BMW engine wiring harness (module 1), OEM number 8681952, comes from a donor vehicle and is built to factory specifications. As the central electrical loom for the engine, it routes power and signals between sensors, injectors, and the ECU. A worn or damaged harness can cause intermittent misfires, stalling, or a no-start condition—common failure points include chafed insulation or corroded terminals. This harness is designed for the 2.0L turbocharged four-cylinder found in the BMW X3 and X4, ensuring correct connector pinouts and wire lengths for a direct replacement.
Specifications
| Fits Vehicle Model | X3, X4 |
| Fits Vehicle Make | BMW |
| OEM Part No | 12-51-8-681-952 (12518681952) |
| Category | Other |
Compatible Vehicles
Fits 10 vehicle configurations across 1 make, 2018-2023.
View all 10 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2020 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2018 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2023 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2022 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2021 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2019 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2021 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2020 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2022 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2019 | BMW | X4 | SUV | 2.0L l4 Turbo |