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BMW Cooling Expansion Tank Parts

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Coolant Expansion Tank

ES#4499527 - 17137642158 - Coolant Expansion Tank - Includes level sensor - Hamburg Tech - 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:
Hamburg Tech - Corporate Logo
ES#:
4499527
Mfg#:
17137642158
In Stock
$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E90 Coolant Expansion Tank

ES#3464815 - 17138570079 - E90 Coolant Expansion Tank - Includes level sensor - Mahle-Behr - BMW

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

Brand:
Mahle-Behr - Corporate Logo
ES#:
3464815
Mfg#:
17138570079
Ships in 1 Business Day
$139.00

This product was last offered at the strikethrough price on
03-20-2026

$103.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS S54 Exact-fit Waterpipe Connecting Line

ES#3230751 - 013178ecsKT - ECS S54 Exact-fit Waterpipe Connecting Line - Engineered in-house with perfectly formed fitment for a stronger, cleaner install. - ECS - BMW

Engineered in-house with perfectly formed fitment for a stronger, cleaner install. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3230751
Mfg#:
013178ECSKT
Ships on Aug 10, 2026
Auto Notify
ON SALE! SAVE 30%
$145.99

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

$102.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose

ES#2775491 - 17122284688 - Oil Cooler Hose - Hose from the auxiliary radiator in the wheel housing to the main Radiator. - Genuine BMW - BMW

Hose from the auxiliary radiator in the wheel housing to the main Radiator. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2775491
Mfg#:
17122284688
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.

$109.99

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

$102.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2814110 - 17137787039 - Coolant Expansion Tank - Include coolant level sensor and lower securing clamp - Hamburg Tech - BMW

Include coolant level sensor and lower securing clamp 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#:
2814110
Mfg#:
17137787039
Ships in 1 Business Day
$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Coolant Expansion Tank Cap

ES#2707899 - 17132754264 - Engine Coolant Expansion Tank Cap - Replace the expansion tank cap for your MINI / BMW - Febi - BMW MINI

Replace the expansion tank cap for your MINI / BMW 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#:
2707899
Mfg#:
17132754264
In Stock at Vendor
$9.88

This product was last offered at the strikethrough price on
06-03-2026

$9.17 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit

ES#2593211 - 17111741167KT6 - Expansion Tank Replacement Kit - Includes an OE replacement expansion tank - Assembled By ECS - BMW

Includes an OE replacement expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Includes durable brass coolant bleeder screw - no more stripped or broken bleeder screws!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2593211
Mfg#:
17111741167KT6
In Stock at Vendor
ON SALE! SAVE 17%
$114.99

This product was last offered at the strikethrough price on
01-03-2026

$95.35 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Expansion Tank Mounting Plate

ES#3504760 - 17111436250 - 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#:
3504760
Mfg#:
17111436250
In Stock
$70.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit - Level 1

ES#2588199 - 17117573781KT - Expansion Tank Replacement Kit - Level 1 - Includes a level sensor and cap - Assembled By ECS - BMW

Includes a level sensor and cap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2588199
Mfg#:
17117573781KT
In Stock
ON SALE! SAVE 20%
$85.99

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

$69.18 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

E83 Expansion Tank Mounting Plate

ES#3569383 - 17113400017 - E83 Expansion Tank Mounting Plate - Secures the expansion tank to the radiator - URO - BMW

Secures 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:
URO - Corporate Logo
ES#:
3569383
Mfg#:
17113400017
In Stock
$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2996946 - 17117639021 - Expansion Tank Cap - Cap for plastic expansion tank - Rein - BMW

Cap for plastic 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#:
2996946
Mfg#:
17117639021
In Stock
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit - Level 1

ES#2588202 - 17117573781OEKT - Expansion Tank Replacement Kit - Level 1 - Includes a level sensor, cap, and mounting hardware. - Genuine BMW - BMW

Includes a level sensor, cap, and mounting hardware. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2588202
Mfg#:
17117573781OEKT
Ships Today
$271.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Coolant Expansion Tank

ES#2534591 - 17111723520 - Coolant Expansion Tank - Does not include cap or coolant level sensor - URO - BMW

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:
URO - Corporate Logo
ES#:
2534591
Mfg#:
17111723520
In Stock
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor

ES#168111 - 61318360876 - Coolant Level Sensor - Monitors the coolant level in the expansion tank - Genuine BMW - BMW

Monitors the coolant level in the expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
168111
Mfg#:
61318360876
In Stock
3% off MSRP

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

$92.99

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

$89.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor - 109mm Long

ES#166524 - 61311375715 - Coolant Level Sensor - 109mm Long - Replace your coolant level sensor and ensure that your levels are accurately monitored - Genuine BMW - BMW

Replace your coolant level sensor and ensure that your levels are accurately monitored affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
166524
Mfg#:
61311375715
Ships in 1 day
3% off MSRP

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

$92.99

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 Coolant Hose

ES#4181361 - 17128654824 - Expansion Tank Coolant Hose - Connects the cylinder head to the expansion tank - Genuine BMW - BMW

Connects the cylinder head to the expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models with the earlier B48D, B46D, or B46X engines - Not compatible with the later models that feature the B48N/B48P engine

Brand:
Genuine BMW - Corporate Logo
ES#:
4181361
Mfg#:
17128654824
In Stock
7% off MSRP

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

$57.99

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

$53.99 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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