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Genuine BMW BMW Coolant Expansion Tanks for BMW 6 Series E63 (2004-2010)

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 - E9x M3, E60 E63 F01 E70 E71

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:194502

Part#: 17117639021

In Stock

22% off MSRP $ 34.96

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

$ 27.29 USD

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22% off MSRP

$ 34.96

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

$ 27.29 USD

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This radiator expansion tank cap is used most BMW's from 2006+. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap.

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Genuine BMW Coolant Expansion Tank - 17137542986 - E60/61 E63/64 Non-...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:367922

Part#: 17137542986

Ships in 3 Business Days

5% off MSRP $ 143.99

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

$ 136.99 USD

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5% off MSRP

$ 143.99

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

$ 136.99 USD

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If your tank is cracked or leaking, this OE BMW expansion tank is the perfect option to get rid of the leak and prevent coolant loss.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

Genuine BMW Expansion Tank-
Fits the following BMW chassis's:
E60,E61,E62,E63

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Coolant Expansion Tank - E60 M5,E63 M6

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:22514

Part#: 17112283345

Ships in 1-2 days

Sale - Save 5% $ 204.99

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

$ 193.99 USD

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Sale - Save 5%

$ 204.99

This product was last offered at the strikethrough price on
06-25-2026

$ 193.99 USD

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This high quality Genuine BMW expansion tank is used on the S85 V10 engines, and is a common failure item. Be leary of competitors selling this part for less -- is it a Genuine BMW? Probably not. We only carry the Genuine BMW brand expansion tank as it is the only one we use in our own BMWs. If you are overhauling your coolant system, now is the time to consider preventative replacing this expansion tank. We have found that the expansion tanks should be replaced based on age as well as condition. Expansion tanks seem to have a lifespan of less than six years before they show signs of fatigue and wear. Pre-emptively replacing the expansion tank as part of an overall maintenance plan can prevent you from getting stranded from a sudden failure later on. While replacing the expansion tank we recommend replacing the level sensor (sold below) as these are also common failure items.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
2004-2010 E60 BMW M5
2004-2010 E63 BMW M6

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Genuine BMW BMW Coolant Expansion Tanks for BMW 6 Series E63 (2004-2010)

Coolant Expansion Tank Cap - E9x M3, E60 E63 F01 E70 E71

Genuine BMW Coolant Expansion Tank - 17137542986 - E60/61 E63/64 Non-...

Coolant Expansion Tank - E60 M5,E63 M6

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