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BMW Cooling Expansion Tank Parts

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Automatic Transmission Thermostat Kit

ES#2863188 - 17111438819KT - Automatic Transmission Thermostat Kit - Includes new Thermostat, Mounting Plate and Water Connection Pipe - Assembled By ECS - BMW

Includes new Thermostat, Mounting Plate and Water Connection Pipe 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2863188
Mfg#:
17111438819KT
Ships on Nov 12, 2026
ON SALE!
$99.99

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

$93.66 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Expansion Tank With Cap

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

Cooling system expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!

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

Coolant Level Sensor

ES#2795984 - 61318360855 - Coolant Level Sensor - Monitors the coolant level in the expansion tank - URO - BMW

Monitors the coolant level in the expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with production date up to 09/1998

Brand:
URO - Corporate Logo
ES#:
2795984
Mfg#:
61318360855
Ships in 2 Business Days
ON SALE!
$12.99

This product was last offered at the strikethrough price on
06-25-2026

$12.34 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 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3148881
Mfg#:
17137647290
Ships in 4 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

Brand:
Mahle-Behr - Corporate Logo
ES#:
2731937
Mfg#:
17137552546
Ships on Aug 6, 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 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4328185
Mfg#:
17138621092
Ships on Nov 30, 2026
$85.99 USD
Free Shipping
on orders $49 and up

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. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4809968
Mfg#:
17138677649
In Stock
ON SALE!
$87.99

This product was last offered at the strikethrough price on
07-14-2026

$85.35 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Vent Hose

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

Replace your leaking hose

Brand:
Genuine BMW - Corporate Logo
ES#:
38428
Mfg#:
17127541146
Ships in 4 Business 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.

$89.99

This product was last offered at the strikethrough price on
07-21-2026

$84.99 USD
Free Shipping
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 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3504761
Mfg#:
17101439110
Ships in 4 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 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. 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 2 Business Days
$79.99 USD
Free Shipping

Coolant Expansion Tank Kit

ES#4685755 - 17111436381KIT - Coolant Expansion Tank Kit - Hamburg Tech - BMW

We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4685755
Mfg#:
17111436381KIT
Ships in 2 Business Days
$79.99 USD
Free Shipping
on orders $49 and up

Coolant Level Sensor - 109mm Long

ES#2827049 - 61311375715 - Coolant Level Sensor - 109mm Long - Replace your coolant level sensor and ensure that your levels are accurately monitored - URO - BMW

Replace your coolant level sensor and ensure that your levels are accurately monitored 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2827049
Mfg#:
61311375715
Ships in 2 Business Days
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank With Level Sensor

ES#4499526 - 17138614293 - Coolant Expansion Tank With Level Sensor - Hamburg Tech - BMW

We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4499526
Mfg#:
17138614293
Ships in 2 Business Days
$78.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap Seal

ES#37900 - 17111723580 - Expansion Tank Cap Seal - Keep your coolant in. - Genuine BMW - BMW

Keep your coolant in.

Brand:
Genuine BMW - Corporate Logo
ES#:
37900
Mfg#:
17111723580
In Stock at Vendor
$12.99 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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Manufacturer names and/or part numbers are used only for identification purposes.

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