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BMW E30 Cooling Expansion Tank Parts

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Expansion Tank Cap

ES#3493501 - 17137639023 - Expansion Tank Cap - 1.4 Bar pressure - Rein - BMW

1.4 Bar pressure 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with production date from 09/1987

Brand:
Rein - Corporate Logo
ES#:
3493501
Mfg#:
17137639023
Ships in 4 Business Days
ON SALE!
$14.99

This product was last offered at the strikethrough price on
08-31-2026

$14.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#37847 - 17111712966 - Sealing O-Ring - Priced Each - 14.5mm O-ring that seals cap to tank - Genuine BMW - BMW

14.5mm O-ring that seals cap to tank

Brand:
Genuine BMW - Corporate Logo
ES#:
37847
Mfg#:
17111712966
In Stock
ON SALE! SAVE 25%
$4.99

This product was last offered at the strikethrough price on
08-26-2026

$3.72 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2091428 - 17111742232 - Expansion Tank Cap - 1.4 Bar pressure - MTC - BMW

1.4 Bar pressure For vehicles with production date from 09/1987

Brand:
MTC - Corporate Logo
ES#:
2091428
Mfg#:
17111742232
Ships in 10 Business Days
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2534590 - 17111712835 - Coolant Expansion Tank - Does not include cap or coolant level sensor - URO - BMW

Does not include cap or coolant level sensor 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534590
Mfg#:
17111712835
Ships in 2 Business Days
$18.99 USD
Free Shipping
on orders $49 and up

Aluminum Coolant Expansion Tank

Eliminate your failure-prone plastic tank!

Brand:
Moroso - Corporate Logo
ES#:
4812407
Mfg#:
63799
Ships in 2 Business Days
$459.99 USD
Free Shipping
on orders $49 and up

E30 Coolant Expansion Tank

Replace your cracked or faded expansion tank. 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with production date from 09/1987

Brand:
Bremmen Parts - Corporate Logo
ES#:
5506683
Mfg#:
17111712641
Ships on Jan 6, 2027
Auto Notify
$49.99 USD

Expansion Tank Cap

ES#4328146 - 17111742232 - Expansion Tank Cap - Replace worn or missing pieces. - Meyle - BMW

Replace worn or missing pieces. 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4328146
Mfg#:
17111742232
Back Ordered
$10.99 USD
Free Shipping
on orders $49 and up

More About Cooling Expansion Tank Parts

A common source of overheating problems is a broken or leaking coolant expansion tank. Replace it with an OEM coolant expansion tank or quality aftermarket expansion tank to prevent future woes.

Let us help you find the parts that fit your BMW

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Manufacturer names and/or part numbers are used only for identification purposes.

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