Genuine BMW Coolant Expansion Tank Cap - E9x M3, E60 E63 F01 E70 E71 17117639021

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

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.
Genuine BMW Genuine BMW
T#: 194502 | Part#: 17117639021
Part#: 17-11-7-639-021
Part#: 17 11 7 639 021
Part#: 17.11.7.639.021
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27.29 $27.29
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MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

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Genuine BMW Coolant Expansion Tank Cap - E9x M3, E60 E63 F01 E70 E71 17117639021
Coolant Expansion Tank Cap - E9x M3, E60 E63 F01 E70 E71
$27.29

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Rein Expansion Tank Cap
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$ 16.14 USD
SALE - Save 5%
$ 16.99

This product was last offered at the strikethrough price on
06-29-2026

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For O...
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.

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:
2006-2011 E90 BMW M3 - Sedan
2007-2013 E92 BMW M3 - Coupe
2007-2013 E93 BMW M3 - Convertible
2015+ F80 BMW M3
2015+ F82 BMW M4
2004-2010 E60 BMW 525i 525xi 530i 530xi 528i 528xi 528i xDrive 535i 535xi 535i xDrive 545i 550i M5
2010+ F07 BMW 535i GT, 535i xDrive GT, 550i GT, 550i xDrive GT
2011 F10 BMW 528i N52
2011-2012 F10 BMW 535i 535i xDrive 550i 550i xDrive
2004-2010 E63 BMW 645ci 650i M6
2012+ F12 BMW 650i 650i xDrive
2009-2012 F01 BMW 750i 750li 750i xDrive 750li xDrive i
2009-2012 F01 BMW 760li
2007-2013 E70 BMW X5 3.0si X5 4.8i X5 xDrive30i X5 xDrive35i X5 xDrive48i X5 xDrive50i X5M
2008-2014 E71 BMW X6 xDrive35i X6 xDrive50i X6M
Prop 65 WarningProp 65 Warning

Previous Revisions
  • 17-13-7-516-004, 17 13 7 516 004, 17.13.7.516.004, 17137516004

Cross Reference
  • 17117639021, 17-11-7-639-021, 17 11 7 639 021, 17.11.7.639.021
  • 17117639021, 17-11-7-639-021, 17 11 7 639 021, 17.11.7.639.021
  • 17137516004, 17-13-7-516-004, 17 13 7 516 004, 17.13.7.516.004
  • 17117539021, 17-11-7-539-021, 17 11 7 539 021, 17.11.7.539.021

Product Q&A

Lifetime Replacement

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If you have any questions, would like to learn more or are ready to place a replacement claim, click here!

MAKE MODEL SUBMODEL ENGINE Special Fitment Notes
BMW E60 525i M54 2.5L Use vehicle selector to confirm fitment
BMW E60 525i N52 3.0L Use vehicle selector to confirm fitment
BMW E60 525xi N52 3.0L Use vehicle selector to confirm fitment
BMW E60 528i N52 3.0L Use vehicle selector to confirm fitment
BMW E60 528xi N52 3.0L Use vehicle selector to confirm fitment
BMW E60 530i M54 3.0L Use vehicle selector to confirm fitment
BMW E60 530i N52 3.0L Use vehicle selector to confirm fitment
BMW E60 530xi N52 3.0L Use vehicle selector to confirm fitment
BMW E60 535i N54 3.0L Use vehicle selector to confirm fitment
BMW E60 535xi N54 3.0L Use vehicle selector to confirm fitment
BMW E60 545i N62 4.4L Use vehicle selector to confirm fitment
BMW E60 550i N62 4.8L Use vehicle selector to confirm fitment
BMW E60 M5 S85 5.0L Use vehicle selector to confirm fitment
BMW E61 530xi N52 3.0L Use vehicle selector to confirm fitment
BMW E61 535xi N54 3.0L Use vehicle selector to confirm fitment
BMW E63 645Ci N62 4.4L Use vehicle selector to confirm fitment
BMW E63 650i N62 4.8L Use vehicle selector to confirm fitment
BMW E63 M6 S85 5.0L Use vehicle selector to confirm fitment
BMW E64 645Ci N62 4.4L Use vehicle selector to confirm fitment
BMW E64 650i N62 4.8L Use vehicle selector to confirm fitment
BMW E64 M6 S85 5.0L Use vehicle selector to confirm fitment
BMW E70 X5 N52 3.0L Use vehicle selector to confirm fitment
BMW E70 X5 N55 3.0L Use vehicle selector to confirm fitment
BMW E70 X5 N62 4.8L Use vehicle selector to confirm fitment
BMW E70 X5 S63 4.4L Use vehicle selector to confirm fitment
BMW E70 X5 M S63 4.4L Use vehicle selector to confirm fitment
BMW E70 X5 xDrive35i N55 3.0L Use vehicle selector to confirm fitment
BMW E70 X5 xDrive50i N63 4.4L Use vehicle selector to confirm fitment
BMW E71 X6 50iX N63 4.4L Use vehicle selector to confirm fitment
BMW E71 X6 ActiveHybrid N63 4.4L Use vehicle selector to confirm fitment
BMW E71 X6 M S63 4.4L Use vehicle selector to confirm fitment
BMW E71 X6 xDrive35i N54 3.0L Use vehicle selector to confirm fitment
BMW E71 X6 xDrive35i N55 3.0L Use vehicle selector to confirm fitment
BMW E71 X6 xDrive50i N63 4.4L Use vehicle selector to confirm fitment
BMW E90 M3 S65 4.0L Use vehicle selector to confirm fitment
BMW E92 M3 S65 4.0L Use vehicle selector to confirm fitment
BMW E93 M3 S65 4.0L Use vehicle selector to confirm fitment
BMW F01 740i N54 3.0L Use vehicle selector to confirm fitment
BMW F01 750i N63 4.4L Use vehicle selector to confirm fitment
BMW F01 750i xDrive N63 4.4L Use vehicle selector to confirm fitment
BMW F01 Alpina B7 N63 4.4L Use vehicle selector to confirm fitment
BMW F01 Alpina B7 xDrive N63 4.4L Use vehicle selector to confirm fitment
BMW F02 740Li N54 3.0L Use vehicle selector to confirm fitment
BMW F02 750Li N63 4.4L Use vehicle selector to confirm fitment
BMW F02 750Li xDrive N63 4.4L Use vehicle selector to confirm fitment
BMW F02 760Li N74 6.0L Use vehicle selector to confirm fitment
BMW F07 535i N55 3.0L Use vehicle selector to confirm fitment
BMW F07 535i xDrive N55 3.0L Use vehicle selector to confirm fitment
BMW F07 550i N63 4.4L Use vehicle selector to confirm fitment
BMW F07 550i xDrive N63 4.4L Use vehicle selector to confirm fitment
BMW F10 528i N52 3.0L Use vehicle selector to confirm fitment
BMW F10 535i N55 3.0L Use vehicle selector to confirm fitment
BMW F10 535i xDrive N55 3.0L Use vehicle selector to confirm fitment
BMW F10 550i N63 4.4L Use vehicle selector to confirm fitment
BMW F10 550i xDrive N63 4.4L Use vehicle selector to confirm fitment
BMW F10 ActiveHybrid 5 N55 3.0L Use vehicle selector to confirm fitment
BMW F12 640i N55 3.0L Use vehicle selector to confirm fitment
BMW F12 650i N63 4.4L Use vehicle selector to confirm fitment
BMW F12 650iX N63 4.4L Use vehicle selector to confirm fitment
BMW F13 640i N55 3.0L Use vehicle selector to confirm fitment
BMW F13 650i N63 4.4L Use vehicle selector to confirm fitment
BMW F13 650iX N63 4.4L Use vehicle selector to confirm fitment
BMW F80 M3 S55 3.0L Use vehicle selector to confirm fitment
BMW F82 M4 S55 3.0L Use vehicle selector to confirm fitment
BMW F83 M4 S55 3.0L Use vehicle selector to confirm fitment
BMW F85 X5 M S63 4.4L Use vehicle selector to confirm fitment
BMW F86 X6 M S63 4.4L Use vehicle selector to confirm fitment
BMW F87 M2 Competition S55 3.0L Use vehicle selector to confirm fitment
BMW F90 M5 S63 4.4L Use vehicle selector to confirm fitment
BMW F91 M8 S63 4.4L Use vehicle selector to confirm fitment
BMW F91 M8 Competition S63 4.4L Use vehicle selector to confirm fitment
BMW F92 M8 S63 4.4L Use vehicle selector to confirm fitment
BMW F92 M8 Competition S63 4.4L Use vehicle selector to confirm fitment
BMW F93 M8 S63 4.4L Use vehicle selector to confirm fitment
BMW G05 X5 M50i N63 4.4L Use vehicle selector to confirm fitment
BMW G05 X5 xDrive50i N63 4.4L Use vehicle selector to confirm fitment
BMW G06 X6 M50i N63 4.4L Use vehicle selector to confirm fitment
BMW G07 X7 M50i N63 4.4L Use vehicle selector to confirm fitment
BMW G07 X7 xDrive50i N63 4.4L Use vehicle selector to confirm fitment
BMW G11 750i N63 4.4L Use vehicle selector to confirm fitment
BMW G11 750i xDrive N63 4.4L Use vehicle selector to confirm fitment
BMW G11 Alpina B7 xDrive N63 4.4L Use vehicle selector to confirm fitment
BMW G11 M760i xDrive N74 6.6L Use vehicle selector to confirm fitment
BMW G14 M850i xDrive N63 4.4L Use vehicle selector to confirm fitment
BMW G15 M850i xDrive N63 4.4L Use vehicle selector to confirm fitment
BMW G16 M850i xDrive N63 4.4L Use vehicle selector to confirm fitment
BMW G30 M550i xDrive N63 4.4L Use vehicle selector to confirm fitment
*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.

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