Opel Astra J 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: 04.10.2026, 02:37
Alternator for your Opel Astra?
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Prices from recent listings
| Source | Condition | Price (approx.) | Last seen |
|---|---|---|---|
| eBay | New | 105.99 € | 2026-10-04 |
| eBay | New | 135.99 € | 2026-10-04 |
| eBay | Used | 79.99 € | 2026-08-02 (older price) |
| eBay | Used | 97.99 € | 2026-08-02 (older price) |
| eBay | New | 105.99 € | 2026-08-02 (older price) |
| eBay | Used | 110.99 € | 2026-08-02 (older price) |
| eBay | New | 119.99 € | 2026-08-02 (older price) |
| eBay | New | 124.12 € | 2026-08-02 (older price) |
Indicative values only – current prices may vary.
Price comparison: Alternator
Current median for the Opel Astra J: 124.12 €.
Median across all car models: around 160 €. This model is 25% below that and cheaper than 70% of the models compared.
Median across Opel car models: around 110 €. This model is 10% above that and more expensive than 65% of the models compared.
Compares the medians of the most recent offers found for each model.
Find Opel Astra J parts online
hank's free AI report searches specialized shops for Opel Astra J parts, including MM-Opelparts, Mecatechnic & Amazon.
About this part
The alternator on your Astra J 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 Opel Astra?
Match the exact engine code and the model year of your Astra J, 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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