Expansion Tank Cap - BMW 1/3/5 Series / X3 / X5 / Z4 (many models check fitment) | 17117639020

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Part# 17117639020

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The GENUINE part, as sold new by the dealer.

Guaranteed fitment precision-molded to OE cap dimensions to ensure compatibility with original and aftermarket coolant recovery tanks. Quality cap and seal materials resist engine heat and harsh cooling system environment factory pressure-tested.



Part #'s


17-11-7-639-020 / 17 11 7 639 020 / 17117639020

17-11-7-521-071 / 17 11 7 521 071 / 17117521071




⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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