Cadillac STS Sigma Alternator
New, used, or aftermarket – from sellers across Europe.
Parts availability
Hard to find – this is exactly what hank is made for!
Estimated price range
Widely available Limited Hard to find
Last updated: 02.11.2026, 14:22
Alternator for your Cadillac STS?
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In addition, sellers on hank can send you offers directly.
Prices from recent listings
| Source | Condition | Price (approx.) | Last seen |
|---|---|---|---|
| turbo_lv via ebay.de | New | 151.93 € | 2026-11-02 |
| premium-autoparts via ebay.de | New | 264.90 € | 2026-11-02 |
| eBay | New | 264.90 € | 2026-09-03 |
| eBay | New | 367.38 € | 2026-09-03 |
| Autoparts24 | Used | 227.23 € | 2026-06-14 (older price) |
| Amazon | New | 258.71 € | 2026-06-14 (older price) |
Indicative values only – current prices may vary.
Price comparison: Alternator
Current median for the Cadillac STS Sigma: 261.80 €.
Median across all car models: around 160 €. This model is 60% above that and more expensive than 85% of the models compared.
Median across Cadillac car models: around 190 €. This model is 35% above that and more expensive than 70% of the models compared.
Compares the medians of the most recent offers found for each model.
Find Cadillac STS Sigma parts online
hank's free AI report searches specialized shops for Cadillac STS Sigma parts, including belchers, Customville American & us-car-teile-center.de.
About this part
The alternator on your STS Sigma 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 Cadillac STS?
Match the exact engine code and the model year of your STS Sigma, 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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