Rein BMW Coolant Expansion Tanks for BMW 5 Series E39 (1996-2003)

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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
Coolant Expansion Tank
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:591959
Part#: 17111741167
Ships in 2 Business Days
$ 69.99 USD
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$ 69.99 USD
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Plastic has a limited lifespan - replace every 80,000 miles
BMW E39 Coolant Expansion Tank
BMW E39 Coolant Expansion Tank
For vehicles with production date from 09/1998
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:388645
Part#: 17111436381
Back Ordered
$ 87.99 USD
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$ 87.99 USD
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Add to Wish List

BMW E39 Coolant Expansion Tank is an essential component designed to maintain the proper coolant level in your vehicle's cooling system. Manufactured with high-quality materials, this expansion tank ensures reliable performance and durability, preventing engine overheating by accommodating the expansion of coolant as it heats up. The kit includes a level sensor and cap, providing everything needed for a seamless installation. This expansion tank is specifically engineered to meet the exact specifications of your BMW E39, offering a perfect fit and optimal functionality.

  • Complete Kit: Includes level sensor and cap for easy installation.
  • High-Quality Construction: Built with durable materials for long-lasting performance.
  • Prevents Overheating: Helps manage coolant expansion, ensuring engine protection.
  • Exact Fit: Designed to meet the precise specifications of your BMW E39.
  • Enhanced Reliability: Ensures proper coolant level maintenance for optimal cooling system function.
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