BMW 3 Series G20 Alternator
New, used, or aftermarket – from sellers across Europe.
Parts availability
This part appears to be widely available.
Estimated price range
Widely available Limited Hard to find
Last updated: 28.10.2026, 06:58
Alternator for your BMW 3 Series?
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Prices from recent listings
| Source | Condition | Price (approx.) | Last seen |
|---|---|---|---|
| eBay | Used | 49.00 € | 2026-10-28 |
| eBay | Used | 480.00 € | 2026-10-28 |
| eBay | Used | 114.72 € | 2026-10-01 |
| eBay | Used | 361.76 € | 2026-10-01 |
| eBay | Used | 157.08 € | 2026-09-01 |
| eBay | Used | 480.00 € | 2026-09-01 |
| eBay | Used | 150.67 € | 2026-07-31 (older price) |
| eBay | Used | 160.00 € | 2026-07-31 (older price) |
Indicative values only – current prices may vary.
Price comparison: Alternator
Current median for the BMW 3 Series G20: 242.97 €.
Median across all car models: around 160 €. This model is 50% above that and more expensive than 80% of the models compared.
Median across BMW car models: around 210 €. This model is 15% above that and more expensive than 55% of the models compared.
Compares the medians of the most recent offers found for each model.
Find BMW 3 Series G20 parts online
hank's free AI report searches specialized shops for BMW 3 Series G20 parts, including BMW Spare Parts, Jaymic BMW Parts & Ricambi BMW.
About this part
The alternator on your 3 Series G20 charges the battery and powers the electrics while the engine runs. A failing alternator causes dimming lights, a dying battery and eventually a vehicle that won't start.
Frequently asked questions
What should I check when ordering a replacement alternator for the BMW 3 Series?
Match the exact engine code and the model year of your 3 Series G20, as alternators differ in output (amps) and mounting. Check whether the pulley is included or needs to be transferred.
Is a remanufactured alternator a good option?
Yes – remanufactured alternators are tested to OEM specs and are often significantly cheaper than new. They're a reliable and economical choice for most vehicles.
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