URO BMW Coolant Expansion Tanks for BMW 3 Series E30 (1984-1991)

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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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URO Coolant Expansion Tank - E30 325e 325i 88-91
URO Coolant Expansion Tank - E30 325e 325i 88-91
For vehicles with production date from 09/1987
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:2453609
Part#: 17111712641
In Stock
$ 46.99 USD
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$ 46.99 USD
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This coolant reservoir is for the E30 325i 1988-1991. We have found that the expansion tanks should be replaced based on age as well as condition. This item fits the following BMWs: 1988-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
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URO Coolant Expansion Tank - BMW E30 E36 Z3 M42 M44, E34 325
URO Coolant Expansion Tank - BMW E30 E36 Z3 M42 M44, E34 325 ...
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!
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T#:362008
Part#: 17111712835
Ships in 1 Business Day
$ 18.99 USD
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$ 18.99 USD
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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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Expansion Tank Cap
Expansion Tank Cap
For vehicles with production date up to 09/1987
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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T#:362007
Part#: 17114379047
Back Ordered
$ 7.99 USD
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$ 7.99 USD
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1.2 Bar pressure
URO Expansion Tank Cap - BMW E30
URO Expansion Tank Cap - BMW E30
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#:592118
Part#: 17111468077
Back Ordered
$ 6.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 6.99 USD
Free Shipping on orders $49 and up
Add to Wish List

URO Expansion Tank Cap - BMW E30

The URO Expansion Tank Cap - BMW E30 is a crucial component for maintaining optimal cooling system performance by ensuring proper pressure regulation. Over time, older radiator caps lose their ability to hold pressure, leading to a lower boiling point and potential overheating issues. This high-quality replacement cap is designed to restore factory pressure levels, preventing coolant loss and maintaining engine efficiency. Crafted from durable materials, it resists wear and temperature fluctuations, ensuring long-lasting reliability.

  • Direct replacement for BMW E30 models
  • Maintains correct cooling system pressure to prevent overheating
  • Helps sustain optimal engine temperature and performance
  • High-quality construction for durability and reliability
  • Prevents coolant evaporation and system inefficiencies
  • Easy installation with OE-style fitment
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