BMW F 850 GS K81 Alternator
New, used, or aftermarket – from sellers across Europe.
Parts availability
Limited availability – hank searches the web for you.
Estimated price range
Widely available Limited Hard to find
Last updated: 08.08.2026, 15:32
Alternator for your BMW F 850 GS?
Create a parts request and we will automatically search the web for suitable offers. You'll receive the results by e-mail - free of charge.
In addition, sellers on hank can send you offers directly.
Prices from recent listings
| Source | Condition | Price (approx.) | Last seen |
|---|---|---|---|
| eBay | Used | 206.58 € | 2026-07-25 |
| Motorparts-online | Unknown | 49.00 € | 2026-07-25 |
| Rebike-teile | Unknown | 69.00 € | 2026-07-25 |
| Kohl-shop | New | 169.90 € | 2026-07-25 |
| Tuning-parts24 | New | 131.90 € | 2026-07-25 |
Indicative values only – current prices may vary.
Find BMW F 850 GS K81 parts online
hank's free AI report searches specialized shops for BMW F 850 GS K81 parts, including Classic Bike Parts Cheshire, Motoplanet & Nippy Normans.
About this part
The alternator on your F 850 GS K81 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 F 850 GS?
Match the exact engine code and the model year of your F 850 GS K81, 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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