Genuine BMW Coolant Expansion Tank - E46 M3

This radiator coolant reservoir/expansion tank for E46 M3 is a common failure item as the plastic weakens over time and stress crack will lead to coolant leaks. If your car has over 80k miles and hasn't had one of these replaced, we highly recommend it during your next major service. We have found that the aftermarket coolant reservoirs fail easier than the original BMW piece so we only offer the BMW type on this part.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
2001-2006 E46 BMW M3

T#: 13185 | Part#: 17112283344
Part#: 17-11-2-283-344
Part#: 17 11 2 283 344
Part#: 17.11.2.283.344
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199.98 $199.98
7% off MSRP:
$215.23

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

Lifetime Replacement
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Availability:
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Est. Ship Date:
on Jun 8, 2026
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Heavy Duty Aluminum Expansion Tank Kit - E46 M3 S54
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E46 M3 Heavy Duty Aluminum Expansion Tank Kit

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Genuine BMW Coolant Expansion Tank - E46 M3
$199.98

Previous Revisions
  • 17-11-2-228-944, 17 11 2 228 944, 17.11.2.228.944, 17112228944

Cross Reference
  • 17112283344, 17-11-2-283-344, 17 11 2 283 344, 17.11.2.283.344

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