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BMW 503 Water Pump

New, used, or aftermarket – from sellers across Europe.

Parts availability

This part appears to be widely available.

Water Pump23,99 € – 100,97 €
10+ offers10 New

Estimated price range

Widely available Limited Hard to find

Last updated: 13.07.2026, 00:59

Water Pump for your BMW 503?

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Prices from recent listings

Median: 46.61 €
Min: 23.99 € Max: 100.97 €
Source Condition Price (approx.) Last seen
eBay New 23.99 € 2026-07-13 (older price)
eBay New 23.99 € 2026-07-13 (older price)
eBay New 23.99 € 2026-07-13 (older price)
eBay New 37.00 € 2026-07-13 (older price)
eBay New 38.50 € 2026-07-13 (older price)
eBay New 54.72 € 2026-07-13 (older price)
eBay New 58.27 € 2026-07-13 (older price)
eBay New 76.50 € 2026-07-13 (older price)

Indicative values only – current prices may vary.

Price comparison: Water Pump

Current median for the BMW 503: 46.61 €.

Median across all car models: around 66 €. This model is 30% below that and cheaper than 75% of the models compared.

Median across BMW car models: around 83 €. This model is 45% below that and cheaper than 90% of the models compared.

Compares the medians of the most recent offers found for each model.

Find BMW 503 parts online

hank's free AI report searches specialized shops for BMW 503 parts, including hardi-automotive, C3BMW & LLLParts.

About this part

The water pump on your 503 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 BMW 503?

Match the exact engine code and the model year of your 503. 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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BMW 503 Water Pump

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