Rein BMW Coolant Expansion Tanks for BMW F87 M2 N55 3.0L

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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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BMW Coolant Expansion Tank - 17137642160
BMW Coolant Expansion Tank - 17137642160
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Rein - Corporate Logo
T#:45791749
Part#: 17137642160
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$ 85.00

This product was last offered at the strikethrough price on
04-28-2026

$ 79.99 USD
Free Shipping on orders $49 and up
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$ 79.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Expansion tanks take constant abuse from high heat and harsh coolant, making them prone to cracking or failure over time. A damaged tank can quickly lead to overheating and serious engine damage, so replacement is critical at the first sign of trouble. Features: Direct fitment for hassle-free installation Precision-molded to OE specs for perfect sensor and hose connections Durable construction stands up to extreme heat and coolant chemicals Factory pressure-tested for reliable performance
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