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BMW Cooling Expansion Tank Parts

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E21 Expansion Tank

ES#36401 - 16121118911 - E21 Expansion Tank - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
36401
Mfg#:
16121118911
Ships in 5 Business Days
4% off MSRP

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

$93.99

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

$89.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank With Cap

ES#5374575 - EPK0141 - Expansion Tank With Cap - Cooling system expansion tank - Rein - BMW

Cooling system expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rein - Corporate Logo
ES#:
5374575
Mfg#:
EPK0141
In Stock
Limited Qty Sale
$97.99

This product was last offered at the strikethrough price on
06-02-2026

$87.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank

ES#4809968 - 17138677649 - Expansion Tank - Quality replacement for your cracked and/or damaged coolant expansion tank. - URO - BMW

Quality replacement for your cracked and/or damaged coolant expansion tank. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4809968
Mfg#:
17138677649
Back Ordered
Auto Notify
$87.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E70 Coolant Expansion Tank

ES#3148881 - 17137647290 - E70 Coolant Expansion Tank - Plastic expansion tanks have a limited lifespan - replace every 80,000 miles - Rein - BMW

Plastic expansion tanks have a limited lifespan - replace every 80,000 miles 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#:
3148881
Mfg#:
17137647290
Ships in 3 Business Days
$85.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E70 Coolant Expansion Tank

ES#2731937 - 17137552546 - E70 Coolant Expansion Tank - Replace your cracked or faded tank - Mahle-Behr - BMW

Replace your cracked or faded tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle-Behr - Corporate Logo
ES#:
2731937
Mfg#:
17137552546
Ships on Jun 22, 2026
$85.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#4328185 - 17138621092 - Coolant Expansion Tank - Replace your cracked or faded tank - Meyle - BMW

Replace your cracked or faded tank 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#:
4328185
Mfg#:
17138621092
Ships on Oct 14, 2026
$85.99 USD
Free Shipping
on orders $49 and up

Expansion Tank Vent Hose

ES#38428 - 17127541146 - Expansion Tank Vent Hose - Replace your leaking hose - Genuine BMW - BMW

Replace your leaking hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
38428
Mfg#:
17127541146
Ships in 1-2 days
7% off MSRP

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

$89.99

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

$83.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2187552 - 17111742231 - Expansion Tank Cap - Replace when performing cooling service. - URO - BMW

Replace when performing cooling service. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2187552
Mfg#:
17111742231
In Stock at Vendor
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Mounting Plate

ES#3504761 - 17101439110 - Expansion Tank Mounting Plate - Mounts to the side of the radiator for retaining the expansion tank - Rein - BMW

Mounts to the side of the radiator for retaining the expansion tank 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#:
3504761
Mfg#:
17101439110
Ships in 3 Business Days
$80.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Overflow Hose - Radiator to Expansion Tank

ES#2881647 - 17127575428 - Coolant Overflow Hose - Radiator to Expansion Tank - Directs excess coolant from the radiator to the expansion tank - Vaico - BMW

Directs excess coolant from the radiator to the expansion tank 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#:
2881647
Mfg#:
17127575428
In Stock at Vendor
$82.99

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

$80.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2814073 - 17111712641 - Coolant Expansion Tank - Replace your cracked or faded expansion tank. - Hamburg Tech - BMW

Replace your cracked or faded 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 from 09/1987

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814073
Mfg#:
17111712641
Ships in 1 Business Day
$79.99 USD
Free Shipping

Coolant Expansion Tank Kit

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

Brand:
Hamburg Tech - Corporate Logo
ES#:
4685755
Mfg#:
17111436381KIT
Ships in 1 Business Day
$79.99 USD
Free Shipping
on orders $49 and up

Expansion Tank Hose

ES#2868200 - 17111723521 - Expansion Tank Hose - Connects the expansion tank to the radiator - Febi - BMW

Connects the expansion tank to the radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2868200
Mfg#:
17111723521
In Stock
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant expansion tank

ES#3464805 - 17111719110 - Coolant expansion tank - Replace your cracked leaking tank to avoid over heating - Mahle-Behr - BMW

Replace your cracked leaking tank to avoid over heating affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle-Behr - Corporate Logo
ES#:
3464805
Mfg#:
17111719110
In Stock
$75.99

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

$74.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbon Coolant Expansion Tank Cap Cover (Gloss Carbon)

ES#4900217 - BM-0803-GC - Carbon Coolant Expansion Tank Cap Cover (Gloss Carbon) - Upgrade to AutoTecknics Pre-Preg Carbon Fiber Coolant Expansion Tank Cap Cover and give your BMW the exclusive, high-performance look it deserves. - AUTOTECKNIC - BMW

Upgrade to AutoTecknic’s Pre-Preg Carbon Fiber Coolant Expansion Tank Cap Cover and give your BMW the exclusive, high-performance look it deserves. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AUTOTECKNIC - Corporate Logo
ES#:
4900217
Mfg#:
BM-0803-GC
Ships in 7 Business Days
$74.99 USD
Free Shipping
on orders $49 and up

Coolant Hose

ES#38315 - 17127509966 - Coolant Hose - Connects to the bottom of the expansion tank - Genuine BMW - BMW

Connects to the bottom of the expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
38315
Mfg#:
17127509966
Ships in 1-2 days
6% off MSRP

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

$79.99

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

$74.99 USD
Free Shipping
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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