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Genuine BMW Radiator Expansion Tank Cap Cover E36 E38 E39 E46 17117639022 OEM
About this item
This is the real deal—a genuine BMW radiator expansion tank cap, part number 17117639022.
If you own an E36, E38, E39, or E46, this is the exact cap you need.
No aftermarket junk, this is straight from BMW, so you know it fits right and seals properly.
It also fits a bunch of specific models like the 316i, 318Ci, 320i, 323i, and even the M3.
Comes with a 90-day warranty, just in case.
If your current cap is leaking or not holding pressure, swap it out for this OEM one and get your cooling system back to 100%.
It's a small part, but a crucial one.
USD$ 22.50 
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4.5 out of 5 stars
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