2017-2021 BMW Alternator (180 AMP) 12318645325
OEM Part #: 12-31-8-645-325 (12318645325)
Actual photo
The exact part you’ll receive — not a stock photo.
$71.49
Used
Donor2018 BMW 330i xDrive · 2.0L · 42k miles
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Genuine OEM Used
SKU: 628797
Donor Vehicle: 2018 BMW 330i xDrive · 2.0L · 42k miles
4 photos
180 AMPS
$71.49
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A used BMW Alternator (8645325) is a genuine OEM 180-amp unit removed from a donor vehicle. This alternator also replaces part numbers 12318645325, 12318645326, 12318648046, and 12318648047. It fits select models with the 2.0L turbocharged four-cylinder engine, such as the 230i, 330i, and 430i. The alternator charges the battery and powers electrical systems; a failing unit often triggers the battery warning light or causes dim headlights and hard starting.
Specifications
| Fits Vehicle Model | 230i, 230i xDrive, 330i, 330i GT xDrive, 330i xDrive, 430i, 430i Gran Coupe, 430i xDrive, 430i xDrive Gran Coupe |
| Fits Vehicle Make | BMW |
| OEM Part No | 12-31-8-645-325 (12318645325) |
| Compatible OEM Part No | 12-31-8-645-325, 12-31-8-645-326, 12-31-8-648-046, 12-31-8-648-047 |
| Category | Battery / Charging / Starting |
Compatible Vehicles
Fits 52 vehicle configurations across 1 make, 2017-2021.
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 52 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2017 | BMW | 430i | Convertible | 2.0L l4 Turbo | |
| 2017 | BMW | 430i xDrive Gran Coupe | Hatchback | 2.0L l4 Turbo | |
| 2018 | BMW | 430i xDrive Gran Coupe | Hatchback | 2.0L l4 Turbo | |
| 2017 | BMW | 430i Gran Coupe | Hatchback | 2.0L l4 Turbo | |
| 2019 | BMW | 430i Gran Coupe | Hatchback | 2.0L l4 Turbo | |
| 2020 | BMW | 430i Gran Coupe | Hatchback | 2.0L l4 Turbo | |
| 2018 | BMW | 430i Gran Coupe | Hatchback | 2.0L l4 Turbo | |
| 2018 | BMW | 430i | Coupe | 2.0L l4 Turbo | |
| 2020 | BMW | 430i xDrive | Convertible | 2.0L l4 Turbo | |
| 2019 | BMW | 430i xDrive | Convertible | 2.0L l4 Turbo | |
| 2018 | BMW | 430i xDrive | Convertible | 2.0L l4 Turbo | |
| 2017 | BMW | 430i xDrive | Convertible | 2.0L l4 Turbo | |
| 2018 | BMW | 430i | Convertible | 2.0L l4 Turbo | |
| 2020 | BMW | 430i xDrive | Coupe | 2.0L l4 Turbo | |
| 2020 | BMW | 430i | Convertible | 2.0L l4 Turbo | |
| 2017 | BMW | 430i | Coupe | 2.0L l4 Turbo | |
| 2019 | BMW | 430i | Coupe | 2.0L l4 Turbo | |
| 2018 | BMW | 430i xDrive | Coupe | 2.0L l4 Turbo | |
| 2017 | BMW | 430i xDrive | Coupe | 2.0L l4 Turbo | |
| 2019 | BMW | 430i xDrive | Coupe | 2.0L l4 Turbo | |
| 2020 | BMW | 430i | Coupe | 2.0L l4 Turbo | |
| 2019 | BMW | 430i | Convertible | 2.0L l4 Turbo | |
| 2017 | BMW | 330i GT xDrive | Hatchback | 2.0L l4 Turbo | |
| 2021 | BMW | 230i | Coupe | 2.0L l4 Turbo | |
| 2021 | BMW | 230i | Convertible | 2.0L l4 Turbo | |
| 2020 | BMW | 230i xDrive | Coupe | 2.0L l4 Turbo | |
| 2020 | BMW | 230i xDrive | Convertible | 2.0L l4 Turbo | |
| 2020 | BMW | 230i | Coupe | 2.0L l4 Turbo | |
| 2020 | BMW | 230i | Convertible | 2.0L l4 Turbo | |
| 2021 | BMW | 230i xDrive | Coupe | 2.0L l4 Turbo | |
| 2018 | BMW | 330i xDrive | Wagon | 2.0L l4 Turbo | |
| 2018 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2017 | BMW | 330i | Sedan | 2.0L l4 Turbo | |
| 2018 | BMW | 330i xDrive | Sedan | 2.0L l4 Turbo | |
| 2017 | BMW | 330i xDrive | Sedan | 2.0L l4 Turbo | |
| 2017 | BMW | 330i xDrive | Wagon | 2.0L l4 Turbo | |
| 2019 | BMW | 330i GT xDrive | Hatchback | 2.0L l4 Turbo | |
| 2019 | BMW | 430i xDrive Gran Coupe | Hatchback | 2.0L l4 Turbo | |
| 2018 | BMW | 330i GT xDrive | Hatchback | 2.0L l4 Turbo | |
| 2019 | BMW | 230i xDrive | Convertible | 2.0L l4 Turbo | |
| 2018 | BMW | 230i xDrive | Convertible | 2.0L l4 Turbo | |
| 2018 | BMW | 230i | Convertible | 2.0L l4 Turbo | |
| 2019 | BMW | 230i | Convertible | 2.0L l4 Turbo | |
| 2017 | BMW | 230i xDrive | Convertible | 2.0L l4 Turbo | |
| 2017 | BMW | 230i | Convertible | 2.0L l4 Turbo | |
| 2019 | BMW | 230i xDrive | Coupe | 2.0L l4 Turbo | |
| 2018 | BMW | 230i xDrive | Coupe | 2.0L l4 Turbo | |
| 2018 | BMW | 230i | Coupe | 2.0L l4 Turbo | |
| 2019 | BMW | 230i | Coupe | 2.0L l4 Turbo | |
| 2017 | BMW | 230i xDrive | Coupe | 2.0L l4 Turbo | |
| 2017 | BMW | 230i | Coupe | 2.0L l4 Turbo | |
| 2020 | BMW | 430i xDrive Gran Coupe | Hatchback | 2.0L l4 Turbo |