2018-2023 BMW X3/X4 Axle Differential / Diff (3.38) Front 31508679981
OEM Part #: 31-50-8-679-981 (31508679981)
Actual photo
The exact part you’ll receive — not a stock photo.
$489.99
Side: Front
Used
Donor2019 BMW X3 · 2.0L
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Genuine OEM Used
SKU: 705717
Donor Vehicle: 2019 BMW X3 · 2.0L
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$489.99
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A used OEM BMW front axle differential (3.38 ratio), OEM part number 8679981. This diff—also called the axle differential—was removed from a donor vehicle. It’s designed for BMW X3 and X4 models equipped with 2.0L or 3.0L turbocharged engines. As the front differential, it transfers power to the front wheels while allowing them to rotate at different speeds during turns. Common failure symptoms include whining or humming noises, clunking during acceleration or deceleration, and fluid leaks from the case or seals.
Specifications
| Fits Vehicle Model | X3, X4 |
| Fits Vehicle Make | BMW |
| OEM Part No | 31-50-8-679-981 (31508679981) |
| Side | Front |
| Category | Differential |
Compatible Vehicles
Fits 20 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
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message us with your VIN
and we’ll confirm the match.
View all 20 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2023 | BMW | X4 | SUV | 3.0L l6 Turbo | |
| 2019 | BMW | X3 | SUV | 3.0L l6 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 | |
| 2019 | BMW | X4 | SUV | 3.0L l6 Turbo | |
| 2022 | BMW | X4 | SUV | 3.0L l6 Turbo | |
| 2020 | BMW | X3 | SUV | 3.0L l6 Turbo | |
| 2021 | BMW | X3 | SUV | 3.0L l6 Turbo | |
| 2020 | BMW | X4 | SUV | 3.0L l6 Turbo | |
| 2018 | BMW | X3 | SUV | 3.0L l6 Turbo | |
| 2022 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2021 | BMW | X4 | SUV | 3.0L l6 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 | X3 | SUV | 3.0L l6 Turbo |