2017-2021 BMW Alternator Screw / Bolt Set
Actual photo
The exact part you’ll receive — not a stock photo.
$19.99
Used
Donor2020 BMW 230i xDrive · 2.0L · 74k miles
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Genuine OEM Used
SKU: 591222
Donor Vehicle: 2020 BMW 230i xDrive · 2.0L · 74k miles
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$19.99
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BMW Alternator Screw / Bolt Set, OEM part number 12318648047. This is a used genuine OEM set of bolts that secure the alternator to the engine block. It also replaces 8645325, 12318645325, 12318645326, 12318648046, and 12318648047. These bolts are specific to the B46/B48 2.0L turbocharged four-cylinder engine family found in various 230i, 330i, and 430i models. A loose or missing alternator bolt can cause charging system noise or failure.
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 |
| Compatible OEM Part No | 8645325, 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 — 7 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2021 | BMW | 230i xDrive | Coupe | 2.0L l4 Turbo | 180 Amp., new |
| 2021 | BMW | 230i | Coupe | 2.0L l4 Turbo | 190 amp, Reman. |
| 2021 | BMW | 230i | Convertible | 2.0L l4 Turbo | 190 amp, Reman. |
| 2020 | BMW | 230i xDrive | Coupe | 2.0L l4 Turbo | 180 Amp., new |
| 2020 | BMW | 230i xDrive | Convertible | 2.0L l4 Turbo | 180 Amp., new |
| 2020 | BMW | 230i | Coupe | 2.0L l4 Turbo | 180 Amp., new |
| 2020 | BMW | 230i | Convertible | 2.0L l4 Turbo | 180 Amp., new |
| 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 | |
| 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 |