Genuine BMW BMW Coolant Expansion Tanks for BMW X Series E71 (2008-2014)

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On certain models, namely E36, E46, and E90, the factory BMW expansion tank is prone to either breaking at connection points or blowing apart altogether. If you're starting to feel like your expansion tank is on borrowed time, it's probably time to replace with either a direct OE replacement, or strengthen your cooling setup with an aluminum expansion tank - we offer numerous performance upgrades for your expansion tank. Especially if you're someone who likes to track your BMW, we recommend upgrading your expansion tank to avoid ruining your track day.
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Coolant Expansion Tank - E70 X5, E71 X6
Coolant Expansion Tank - E70 X5, E71 X6
Genuine BMW - Corporate Logo
T#:217490
Part#: 17138621092
In Stock
Sale - Save 8% $ 222.99

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

$ 205.91 USD
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Sale - Save 8%
$ 222.99

This product was last offered at the strikethrough price on
08-26-2026

$ 205.91 USD
Free Shipping
Add to Wish List


Genuine BMW Expansion Tank -

This item fits the following BMW Chassis:
E70,E71,F15,F16,

This item fits the following BMW Engines:
N63,N63N,S63,N62N

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BMW Mini
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  • Expansion Tanks

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