Mercedes-Benz R-Class W251 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: 18.09.2026, 18:06
Alternator for your Mercedes-Benz R-Class?
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In addition, sellers on hank can send you offers directly.
Prices from recent listings
| Source | Condition | Price (approx.) | Last seen |
|---|---|---|---|
| eBay | New | 249.00 € | 2026-08-04 |
| eBay | New | 372.26 € | 2026-08-04 |
| eBay | New | 503.14 € | 2026-08-04 |
| eBay | New | 285.61 € | 2026-08-04 |
| eBay | New | 266.77 € | 2026-08-04 |
| eBay | New | 274.69 € | 2026-08-04 |
Indicative values only – current prices may vary.
Find Mercedes-Benz R-Class W251 parts online
hank's free AI report searches specialized shops for Mercedes-Benz R-Class W251 parts, including Cannstatt Classic Mercedes Parts, partsformercedes-benz.com & Hilton and Moss.
About this part
The alternator on your R-Class W251 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 Mercedes-Benz R-Class?
Match the exact engine code and the model year of your R-Class W251, 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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