BMW Alternator (180 AMP) 12318634166
OEM Part #: 12-31-8-634-166 (12318634166)
This page covers one exact OEM part number. Every unit we stocked has sold.
We may be able to get another
Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:
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Used BMW Alternator (180 Amp) – OEM Part Number 8634166. This is a genuine, used OEM alternator removed from a donor vehicle. It also replaces part numbers 12318634166, 12318654280, 12318689830, 12318689831, and 12318689832. This 180-amp unit is designed for BMW models with B-series engines, including the B46/B48 2.0L turbo and B58 3.0L turbo, plus the 4.4L V8. When an alternator fails, common symptoms include dimming headlights, a dead battery, or a battery warning light on the dash.
Specifications
| Fits Vehicle Model | 230i, 230i xDrive, 330i, 330i xDrive, 430i, 430i Gran Coupe, 530i, 530i xDrive, 740i, 740i xDrive, 840i, 840i Gran Coupe, 840i xDrive, 840i xDrive Gran Coupe, M240i, M240i xDrive, M340i, M340i xDrive, X3, X4, X5, X6, X7, Z4 |
| Fits Vehicle Make | BMW |
| OEM Part No | 12-31-8-634-166 (12318634166) |
| Compatible OEM Part No | 12-31-8-634-166, 12-31-8-654-280, 12-31-8-689-830, 12-31-8-689-831, 12-31-8-689-832 |
| Category | Battery / Charging / Starting |
Compatible Vehicles
Fits 145 vehicle configurations across 1 make, 2019-2025.
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 145 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2019 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2019 | BMW | 330i xDrive | Sedan | 2.0L l4 Turbo | |
| 2019 | BMW | 330i xDrive | Wagon | 2.0L l4 Turbo | |
| 2019 | BMW | 740i | Sedan | 3.0L l6 Turbo | |
| 2019 | BMW | 740i xDrive | Sedan | 3.0L l6 Turbo | |
| 2019 | BMW | X3 | SUV | 3.0L l6 Turbo | |
| 2019 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2019 | BMW | X4 | SUV | 3.0L l6 Turbo | |
| 2019 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2019 | BMW | X5 | SUV | 3.0L l6 Turbo | |
| 2019 | BMW | X7 | SUV | 3.0L l6 Turbo | |
| 2019 | BMW | Z4 | Convertible | 2.0L l4 Turbo | |
| 2020 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2020 | BMW | 330i xDrive | Sedan | 2.0L l4 Turbo | |
| 2020 | BMW | 740i | Sedan | 3.0L l6 Turbo | |
| 2020 | BMW | 740i xDrive | Sedan | 3.0L l6 Turbo | |
| 2020 | BMW | 840i | Convertible | 3.0L l6 Turbo | |
| 2020 | BMW | 840i | Coupe | 3.0L l6 Turbo | |
| 2020 | BMW | 840i Gran Coupe | Sedan | 3.0L l6 Turbo | |
| 2020 | BMW | 840i xDrive | Convertible | 3.0L l6 Turbo | |
| 2020 | BMW | 840i xDrive | Coupe | 3.0L l6 Turbo | |
| 2020 | BMW | 840i xDrive Gran Coupe | Sedan | 3.0L l6 Turbo | |
| 2020 | BMW | M340i | Sedan | 3.0L l6 Turbo | |
| 2020 | BMW | M340i xDrive | Sedan | 3.0L l6 Turbo | |
| 2020 | BMW | X3 | SUV | 3.0L l6 Turbo | |
| 2020 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2020 | BMW | X4 | SUV | 3.0L l6 Turbo | |
| 2020 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2020 | BMW | X5 | SUV | 3.0L l6 Turbo | |
| 2020 | BMW | X6 | SUV | 3.0L l6 Turbo | |
| 2020 | BMW | X7 | SUV | 3.0L l6 Turbo | |
| 2020 | BMW | Z4 | Convertible | 3.0L l6 Turbo | |
| 2020 | BMW | Z4 | Convertible | 2.0L l4 Turbo | |
| 2021 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2021 | BMW | 330i xDrive | Sedan | 2.0L l4 Turbo | |
| 2021 | BMW | 430i | Convertible | 2.0L l4 Turbo | |
| 2021 | BMW | 430i | Coupe | 2.0L l4 Turbo | |
| 2021 | BMW | 530i | Sedan | 2.0L l4 Turbo | |
| 2021 | BMW | 530i xDrive | Sedan | 2.0L l4 Turbo | |
| 2021 | BMW | 740i | Sedan | 3.0L l6 Turbo | |
| 2021 | BMW | 740i xDrive | Sedan | 3.0L l6 Turbo | |
| 2021 | BMW | 840i | Convertible | 3.0L l6 Turbo | |
| 2021 | BMW | 840i | Coupe | 3.0L l6 Turbo | |
| 2021 | BMW | 840i Gran Coupe | Sedan | 3.0L l6 Turbo | |
| 2021 | BMW | 840i xDrive | Convertible | 3.0L l6 Turbo | |
| 2021 | BMW | 840i xDrive | Coupe | 3.0L l6 Turbo | |
| 2021 | BMW | 840i xDrive Gran Coupe | Sedan | 3.0L l6 Turbo | |
| 2021 | BMW | X3 | SUV | 3.0L l6 Turbo | |
| 2021 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2021 | BMW | X4 | SUV | 3.0L l6 Turbo | |
| 2021 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2021 | BMW | X5 | SUV | 3.0L l6 Turbo | |
| 2021 | BMW | X6 | SUV | 3.0L l6 Turbo | |
| 2021 | BMW | X7 | SUV | 3.0L l6 Turbo | |
| 2021 | BMW | Z4 | Convertible | 2.0L l4 Turbo | |
| 2021 | BMW | Z4 | Convertible | 3.0L l6 Turbo | |
| 2022 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2022 | BMW | 330i xDrive | Sedan | 2.0L l4 Turbo | |
| 2022 | BMW | 430i | Convertible | 2.0L l4 Turbo | |
| 2022 | BMW | 430i | Coupe | 2.0L l4 Turbo | |
| 2022 | BMW | 430i Gran Coupe | Hatchback | 2.0L l4 Turbo | |
| 2022 | BMW | 530i | Sedan | 2.0L l4 Turbo | |
| 2022 | BMW | 530i xDrive | Sedan | 2.0L l4 Turbo | |
| 2022 | BMW | 740i | Sedan | 3.0L l6 Turbo | |
| 2022 | BMW | 740i xDrive | Sedan | 3.0L l6 Turbo | |
| 2022 | BMW | 840i | Convertible | 3.0L l6 Turbo | |
| 2022 | BMW | 840i | Coupe | 3.0L l6 Turbo | |
| 2022 | BMW | 840i Gran Coupe | Sedan | 3.0L l6 Turbo | |
| 2022 | BMW | 840i xDrive | Convertible | 3.0L l6 Turbo | |
| 2022 | BMW | 840i xDrive | Coupe | 3.0L l6 Turbo | |
| 2022 | BMW | 840i xDrive Gran Coupe | Sedan | 3.0L l6 Turbo | |
| 2022 | BMW | X3 | SUV | 3.0L l6 Turbo | |
| 2022 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2022 | BMW | X4 | SUV | 3.0L l6 Turbo | |
| 2022 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2022 | BMW | X5 | SUV | 3.0L l6 Turbo | |
| 2022 | BMW | X6 | SUV | 3.0L l6 Turbo | |
| 2022 | BMW | X7 | SUV | 3.0L l6 Turbo | |
| 2022 | BMW | Z4 | Convertible | 3.0L l6 Turbo | |
| 2022 | BMW | Z4 | Convertible | 2.0L l4 Turbo | |
| 2022 | BMW | 230i | Coupe | 2.0L l4 Turbo | |
| 2022 | BMW | M240i xDrive | Coupe | 3.0L l6 Turbo | |
| 2023 | BMW | 230i | Coupe | 2.0L l4 Turbo | |
| 2023 | BMW | 230i xDrive | Coupe | 2.0L l4 Turbo | |
| 2023 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2023 | BMW | 330i xDrive | Sedan | 2.0L l4 Turbo | |
| 2023 | BMW | 430i | Convertible | 2.0L l4 Turbo | |
| 2023 | BMW | 430i | Coupe | 2.0L l4 Turbo | |
| 2023 | BMW | 430i Gran Coupe | Hatchback | 2.0L l4 Turbo | |
| 2023 | BMW | 530i | Sedan | 2.0L l4 Turbo | |
| 2023 | BMW | 530i xDrive | Sedan | 2.0L l4 Turbo | |
| 2023 | BMW | 840i | Convertible | 3.0L l6 Turbo | |
| 2023 | BMW | 840i | Coupe | 3.0L l6 Turbo | |
| 2023 | BMW | 840i Gran Coupe | Sedan | 3.0L l6 Turbo | |
| 2023 | BMW | 840i xDrive | Convertible | 3.0L l6 Turbo | |
| 2023 | BMW | 840i xDrive | Coupe | 3.0L l6 Turbo | |
| 2023 | BMW | 840i xDrive Gran Coupe | Sedan | 3.0L l6 Turbo | |
| 2023 | BMW | M240i | Coupe | 3.0L l6 Turbo | |
| 2023 | BMW | M240i xDrive | Coupe | 3.0L l6 Turbo | |
| 2023 | BMW | X3 | SUV | 3.0L l6 Turbo | |
| 2023 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2023 | BMW | X4 | SUV | 3.0L l6 Turbo | |
| 2023 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2023 | BMW | X5 | SUV | 3.0L l6 Turbo | |
| 2023 | BMW | X6 | SUV | 3.0L l6 Turbo | |
| 2023 | BMW | X7 | SUV | 3.0L l6 Turbo | |
| 2023 | BMW | Z4 | Convertible | 3.0L l6 Turbo | |
| 2023 | BMW | Z4 | Convertible | 2.0L l4 Turbo | |
| 2024 | BMW | 230i | Coupe | 2.0L l4 Turbo | |
| 2024 | BMW | 230i xDrive | Coupe | 2.0L l4 Turbo | |
| 2024 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2024 | BMW | 330i xDrive | Sedan | 2.0L l4 Turbo | |
| 2024 | BMW | 430i | Convertible | 2.0L l4 Turbo | |
| 2024 | BMW | 430i | Coupe | 2.0L l4 Turbo | |
| 2024 | BMW | 430i Gran Coupe | Hatchback | 2.0L l4 Turbo | |
| 2024 | BMW | 840i | Convertible | 3.0L l6 Turbo | |
| 2024 | BMW | 840i | Coupe | 3.0L l6 Turbo | |
| 2024 | BMW | 840i Gran Coupe | Sedan | 3.0L l6 Turbo | |
| 2024 | BMW | 840i xDrive | Convertible | 3.0L l6 Turbo | |
| 2024 | BMW | 840i xDrive | Coupe | 3.0L l6 Turbo | |
| 2024 | BMW | 840i xDrive Gran Coupe | Sedan | 3.0L l6 Turbo | |
| 2024 | BMW | Z4 | Convertible | 3.0L l6 Turbo | |
| 2024 | BMW | Z4 | Convertible | 2.0L l4 Turbo | |
| 2024 | BMW | M240i | Coupe | 3.0L l6 Turbo | |
| 2024 | BMW | M240i xDrive | Coupe | 3.0L l6 Turbo | |
| 2024 | BMW | X3 | SUV | 2.0L l4 Turbo | |
| 2024 | BMW | X4 | SUV | 3.0L l6 Turbo | |
| 2024 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2025 | BMW | 230i | Coupe | 2.0L l4 Turbo | |
| 2025 | BMW | 230i xDrive | Coupe | 2.0L l4 Turbo | |
| 2025 | BMW | 840i | Convertible | 3.0L l6 Turbo | |
| 2025 | BMW | 840i | Coupe | 3.0L l6 Turbo | |
| 2025 | BMW | 840i Gran Coupe | Sedan | 3.0L l6 Turbo | |
| 2025 | BMW | 840i xDrive | Convertible | 3.0L l6 Turbo | |
| 2025 | BMW | 840i xDrive | Coupe | 3.0L l6 Turbo | |
| 2025 | BMW | 840i xDrive Gran Coupe | Sedan | 3.0L l6 Turbo | |
| 2025 | BMW | X4 | SUV | 2.0L l4 Turbo | |
| 2025 | BMW | Z4 | Convertible | 3.0L l6 Turbo | |
| 2025 | BMW | Z4 | Convertible | 2.0L l4 Turbo | |
| 2025 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2025 | BMW | 330i xDrive | Sedan | 2.0L l4 Turbo | |
| 2025 | BMW | M240i | Coupe | 3.0L l6 Turbo | |
| 2025 | BMW | M240i xDrive | Coupe | 3.0L l6 Turbo | |
| 2025 | BMW | M340i | Sedan | 3.0L l6 Turbo | |
| 2025 | BMW | M340i xDrive | Sedan | 3.0L l6 Turbo |