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BMW Cooling Expansion Tank Parts

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Engine Coolant Expansion Tank Cap

ES#4941100 - 17132754264 - Engine Coolant Expansion Tank Cap - Replace the expansion tank cap for your MINI / BMW - Bremmen Parts - BMW MINI

Replace the expansion tank cap for your MINI / BMW affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4941100
Mfg#:
17132754264
Ships on Jul 31, 2026
Auto Notify
ON SALE! SAVE 20%
$6.99

This product was last offered at the strikethrough price on
05-02-2026

$5.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank

ES#2734027 - 17137617362 - Expansion Tank - Mounts towards the back side of the engine bay - Genuine BMW - BMW MINI

Mounts towards the back side of the engine bay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2734027
Mfg#:
17137617362
Ships in 1 day
7% off MSRP

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

$151.99

This product was last offered at the strikethrough price on
06-04-2026

$141.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling O-Ring - Priced Each

ES#3448838 - 17111711987 - Cooling O-Ring - Priced Each - Fits various components in the cooling system - MTC - BMW

Fits various components in the cooling system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
MTC - Corporate Logo
ES#:
3448838
Mfg#:
17111711987
In Stock
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#38066 - 17114379047 - Expansion Tank Cap - 1.2 Bar pressure - Genuine BMW - BMW

1.2 Bar pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date between 09/1982 and 05/1984

Brand:
Genuine BMW - Corporate Logo
ES#:
38066
Mfg#:
17114379047
Ships in 1 day
4% off MSRP

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

$47.99

This product was last offered at the strikethrough price on
06-04-2026

$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E34 Expansion Tank

ES#60957 - 34321158840 - E34 Expansion Tank - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
60957
Mfg#:
34321158840
Ships in 8 Business Days
$157.99

This product was last offered at the strikethrough price on
05-06-2026

$132.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2881735 - 17137542986 - Coolant Expansion Tank - Includes fluid level sensor - Vaico - BMW

Includes fluid level sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2881735
Mfg#:
17137542986
In Stock at Vendor
$135.99

This product was last offered at the strikethrough price on
05-07-2026

$131.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#37839 - 17111712835 - Coolant Expansion Tank - Does not include cap or coolant level sensor - Genuine BMW - BMW

Does not include cap or coolant level sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
37839
Mfg#:
17111712835
Ships in 1 day
6% off MSRP

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

$141.99

This product was last offered at the strikethrough price on
06-04-2026

$133.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Cap

ES#37974 - 17112227683 - Radiator Cap - Used to maintain proper pressure and boiling point of your cooling system - Genuine BMW - BMW

Used to maintain proper pressure and boiling point of your cooling system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
37974
Mfg#:
17112227683
In Stock
4% off MSRP

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

$27.99

This product was last offered at the strikethrough price on
06-04-2026

$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MMX 90mm Billet Coolant Expansion Tank Cap | BMW

Dress Up Your BMW's Engine Bay With MMX's Billet Expansion Tank Cap! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
MMX Performance - Corporate Logo
ES#:
4809889
Mfg#:
MMR03-1502
Ships in 1 Business Day
$127.99 USD
Free Shipping
on orders $49 and up

Expansion Tank Thermostat

ES#38015 - 17112249366 - Expansion Tank Thermostat - Replace this any time you service the cooling system. - Genuine BMW - BMW

Replace this any time you service the cooling system. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
38015
Mfg#:
17112249366
Ships in 1 day
4% off MSRP

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

$134.99

This product was last offered at the strikethrough price on
06-04-2026

$129.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Mount

ES#2814068 - 17111438819 - Expansion Tank Mount - Found on the left side of the radiator - Hamburg Tech - BMW

Found on the left side of the radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with automatic transmission

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814068
Mfg#:
17111438819
Ships in 1 Business Day
$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#2802712 - 17121712736 - Expansion Tank Hose - Prevents coolant spills - Rein - BMW

Prevents coolant spills affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2802712
Mfg#:
17121712736
In Stock
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor

ES#2828539 - 61311384739 - Coolant Level Sensor - Located on the expansion tank - URO - BMW

Located on the expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with production date up to 03/1996

Brand:
URO - Corporate Logo
ES#:
2828539
Mfg#:
61311384739
In Stock
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap Seal

ES#37883 - 17111723117 - Expansion Tank Cap Seal - Keep coolant in. - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
37883
Mfg#:
17111723117
In Stock
$12.99

This product was last offered at the strikethrough price on
04-06-2026

$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#3504764 - 17138570079 - Coolant Expansion Tank - Includes level sensor - Rein - BMW

Includes level sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3504764
Mfg#:
17138570079
Ships in 3 Business Days
$124.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Engine Coolant Expansion Tank

ES#4475920 - 17138677649 - Engine Coolant Expansion Tank - Replace your cracked or leaking tank - Does not include cap or coolant level sensor - Meyle - BMW

Replace your cracked or leaking tank - Does not include cap or coolant level sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4475920
Mfg#:
17138677649
In Stock at Vendor
$169.99

This product was last offered at the strikethrough price on
12-29-2025

$123.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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.

Other BMW Cooling Expansion Tank Parts

Let us help you find the parts that fit your BMW

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