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BMW Cooling Expansion Tank Parts

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Coolant Expansion Tank Hose

ES#5341132 - 17127535528 - Coolant Expansion Tank Hose - Connects the coolant expansion tank to the cylinder head - Rein - BMW

Connects the coolant expansion tank to the cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Pre-LCI models with the earlier Gen1 B46 engine only

Brand:
Rein - Corporate Logo
ES#:
5341132
Mfg#:
17127535528
Back Ordered
$93.99

This product was last offered at the strikethrough price on
05-14-2026

$51.99 USD
Free Shipping
on orders $49 and up

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 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 09/1998

Brand:
URO - Corporate Logo
ES#:
2795984
Mfg#:
61318360855
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant level sensor

ES#2871875 - 61311384739 - Coolant level sensor - Located on the expansion tank - Febi - 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:
Febi - Corporate Logo
ES#:
2871875
Mfg#:
61311384739
In Stock
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#3504770 - 17137647713 - Coolant Expansion Tank - Replace your cracked or faded tank - Rein - 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:
Rein - Corporate Logo
ES#:
3504770
Mfg#:
17137647713
Ships in 3 Business Days
$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2534592 - 17111741167 - Coolant Expansion Tank - Does not include level sensor and cap - URO - BMW

Does not include level sensor and cap 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#:
2534592
Mfg#:
17111741167
In Stock
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Mounting Plate

ES#3984620 - 17111436250 - Expansion Tank Mounting Plate - Mounts to the side of the radiator for retaining the expansion tank - URO - 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!
For vehicles with manual transmission only

Brand:
URO - Corporate Logo
ES#:
3984620
Mfg#:
17111436250
Back Ordered
Auto Notify
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#4900427 - 17121712736 - Expansion Tank Hose - Prevents coolant spills - Bremmen Parts - BMW

Prevents coolant spills affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4900427
Mfg#:
17121712736
In Stock
ON SALE! SAVE 24%
$15.99

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

$12.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank

ES#4872095 - 17139846642 - Expansion Tank - Built from high-quality, heat-resistant materials, the expansion tank offers long-lasting performance and is a direct replacement for your vehicle's OEM part, guaranteeing a perfect fit. - Meyle - BMW

Built from high-quality, heat-resistant materials, the expansion tank offers long-lasting performance and is a direct replacement for your vehicle's OEM part, guaranteeing a perfect fit. 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#:
4872095
Mfg#:
17139846642
Back Ordered
$99.99

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

$96.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

F10 expansion tank

ES#3464814 - 17137647284 - F10 expansion tank - Replace your cracked tank - Mahle-Behr - BMW

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

Brand:
Mahle-Behr - Corporate Logo
ES#:
3464814
Mfg#:
17137647284
Ships in 1 day
$98.99

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

$95.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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 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#:
2863188
Mfg#:
17111438819KT
Ships on Sep 30, 2026
Auto Notify
ON SALE!
$99.99

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

$95.07 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Silver Auxiliary Coolant Reservoir Cap

ES#4882956 - 201-0394-SIL - Silver Auxiliary Coolant Reservoir Cap - Functional and stunningly stylish way to add a nice touch to any engine bay - Precision Raceworks - BMW

Functional and stunningly stylish way to add a nice touch to any engine bay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Precision Raceworks - Corporate Logo
ES#:
4882956
Mfg#:
201-0394-SIL
Ships in 7 Business Days
$99.99

This product was last offered at the strikethrough price on
01-22-2026

$94.99 USD
Free Shipping
on orders $49 and up

Blue Auxiliary Coolant Reservoir Cap

ES#4882951 - 201-0394-BLU - Blue Auxiliary Coolant Reservoir Cap - Functional and stunningly stylish way to add a nice touch to any engine bay - Precision Raceworks - BMW

Functional and stunningly stylish way to add a nice touch to any engine bay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Precision Raceworks - Corporate Logo
ES#:
4882951
Mfg#:
201-0394-BLU
Ships in 9 Business Days
$99.99

This product was last offered at the strikethrough price on
01-22-2026

$94.99 USD
Free Shipping
on orders $49 and up

E83 Expansion Tank Mounting Plate

ES#4069597 - 17113400017 - E83 Expansion Tank Mounting Plate - Secures the expansion tank to the radiator - Febi - 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:
Febi - Corporate Logo
ES#:
4069597
Mfg#:
17113400017
In Stock at Vendor
$95.99

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

$92.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Vent Line

ES#38310 - 17127508041 - Coolant Vent Line - Connects to the upper vent hole on the expansion tank - Genuine BMW - BMW

Connects to the upper vent hole on the expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
38310
Mfg#:
17127508041
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.

$99.99

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

$92.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2534594 - 17137787039 - 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#:
2534594
Mfg#:
17137787039
Ships in 1 Business Day
$45.99 USD
Free Shipping
on orders $49 and up

Coolant Level Sensor

ES#166702 - 61311384739 - Coolant Level Sensor - Located on the expansion tank - Genuine BMW - BMW

Located on the expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 06/1995

Brand:
Genuine BMW - Corporate Logo
ES#:
166702
Mfg#:
61311384739
Ships in 5 Business Days
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

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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