URO BMW Coolant Expansion Tanks for BMW X Series F25 (2011+)

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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 Cap
Coolant Expansion Tank Cap
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:373591
Part#: 17117521071
In Stock
$ 18.99

This product was last offered at the strikethrough price on
03-09-2026

$ 14.49 USD
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$ 14.49 USD
Free Shipping on orders $49 and up
Add to Wish List
Keep that coolant expansion tank sealed
Coolant Expansion Tank
Coolant Expansion Tank
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:593078
Part#: 17138616418
Ships in 2 Business Days
$ 63.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 63.99 USD
Free Shipping on orders $49 and up
Add to Wish List
The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break.
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