BMW R 1250 GS Adventure K51 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: 22.10.2026, 18:46
Alternator for your BMW R 1250 GS Adventure?
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Prices from recent listings
| Source | Condition | Price (approx.) | Last seen |
|---|---|---|---|
| eBay | Used | 267.50 € | 2026-10-22 |
| eBay | Used | 267.50 € | 2026-10-22 |
| Amazon | Unknown | 213.43 € | 2026-09-23 |
| Motorparts-online | Unknown | 214.00 € | 2026-09-23 |
| eBay | Used | 434.50 € | 2026-09-23 |
| Amazon | Unknown | 3,145.00 € | 2026-09-23 |
| eBay | Used | 267.50 € | 2026-08-22 |
| eBay | Used | 267.50 € | 2026-08-22 |
Indicative values only – current prices may vary.
Price comparison: Alternator
Current median for the BMW R 1250 GS Adventure K51: 267.50 €.
Median across all motorcycle models: around 96 €. This model is 180% above that and more expensive than 95% of the models compared.
Median across BMW motorcycle models: around 140 €. This model is 95% above that and more expensive than 80% of the models compared.
Compares the medians of the most recent offers found for each model.
Find BMW R 1250 GS Adventure K51 parts online
hank's free AI report searches specialized shops for BMW R 1250 GS Adventure K51 parts, including Dennis Kirk, Bahnstormer & Moto-Hub UK.
About this part
The alternator on your R 1250 GS Adventure K51 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 R 1250 GS Adventure?
Match the exact engine code and the model year of your R 1250 GS Adventure K51, 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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