Cadillac STS Sigma Water Pump
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: 02.10.2026, 13:39
Water Pump 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 |
|---|---|---|---|
| eBay | New | 44.94 € | 2026-10-02 |
| eBay | New | 93.26 € | 2026-10-02 |
| Rockauto | New | 18.06 € | 2026-08-04 (older price) |
| Kilan-shop | Unknown | 59.90 € | 2026-08-04 (older price) |
Indicative values only – current prices may vary.
Price comparison: Water Pump
Current median for the Cadillac STS Sigma: 52.42 €.
Median across all car models: around 66 €. This model is 20% below that and cheaper than 65% of the models compared.
Median across Cadillac car models: around 110 €. This model is 50% below that and cheaper than 90% 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 hardi-automotive, Customville American & belchers.
About this part
The water pump on your STS Sigma circulates coolant between the engine and radiator. A failing pump causes overheating, leaks and in severe cases engine damage – timely replacement is essential.
Frequently asked questions
What should I check when buying a replacement water pump for the Cadillac STS?
Match the exact engine code and the model year of your STS Sigma. Check whether the gasket and thermostat housing are included, as these are commonly replaced together.
Should I replace the timing belt and water pump together?
If the timing belt drives the water pump, yes. The labour to access both overlaps significantly, making it far more cost-effective to replace them at the same time.
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