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BMW Cooling Expansion Tank Parts

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Coolant Expansion Tank with Level Sensor

ES#3139099 - 17138621092 - Coolant Expansion Tank with Level Sensor - Replace your cracked or faded tank - Hudson - BMW

Replace your cracked or faded tank

Brand:
Hudson - Corporate Logo
ES#:
3139099
Mfg#:
17138621092
In Stock
ON SALE!
$63.99

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

$62.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Vent Hose

ES#38415 - 17127536236 - Coolant Vent Hose - Connects the upper radiator hose to the expansion tank - Genuine BMW - BMW

Connects the upper radiator hose to the expansion tank

Brand:
Genuine BMW - Corporate Logo
ES#:
38415
Mfg#:
17127536236
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.

$64.99

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

$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#1875578 - 17127592645 - Expansion Tank Hose - Hose for the expansion tank to the radiator - Genuine BMW - BMW

Hose for the expansion tank to the radiator

Brand:
Genuine BMW - Corporate Logo
ES#:
1875578
Mfg#:
17127592645
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.

$64.99

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

$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Coolant Hose - Blue

The VTT Expansion Tank Hose is a premium cooling system upgrade designed to eliminate the most common failure points in the B58 engine’s cooling circuit. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
5445610
Mfg#:
VTT-B58-CEBLUE
Ships on Aug 5, 2026
$59.99 USD
Free Shipping

Expansion Tank Cap

ES#2570141 - 17137516004 - Expansion Tank Cap - Cap for plastic expansion tank - Febi - BMW

Cap for plastic expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2570141
Mfg#:
17137516004
In Stock at Vendor
$15.99

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

$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor

ES#4905031 - 61311384739 - Coolant Level Sensor - Located on the expansion tank - Bremmen Parts - BMW

Located on the expansion tank 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date up to 06/1995

Brand:
Bremmen Parts - Corporate Logo
ES#:
4905031
Mfg#:
61311384739
In Stock
ON SALE! SAVE 23%
$18.99

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

$14.68 USD
Free Shipping
on orders $49 and up

Expansion Tank

ES#2534588 - 17111436381 - Expansion Tank - Cooling system expansion tank - URO - BMW

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

Brand:
URO - Corporate Logo
ES#:
2534588
Mfg#:
17111436381
Ships in 2 Business Days
$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#37505 - 17101704412 - Expansion Tank Hose - Connects the top radiator connection to the expansion tank. - Genuine BMW - BMW

Connects the top radiator connection to the expansion tank.

Brand:
Genuine BMW - Corporate Logo
ES#:
37505
Mfg#:
17101704412
Special Order: No Guaranteed ETA
3% off MSRP

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

$59.99

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

$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#240487 - 17111436381 - Coolant Expansion Tank - Does not include cap - Mahle-Behr - BMW

Does not include cap

Brand:
Mahle-Behr - Corporate Logo
ES#:
240487
Mfg#:
17111436381
Back Ordered
$57.51 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank

ES#2709510 - 17137543003 - Expansion Tank - Replace your cracked or faded tank - URO - BMW

Replace your cracked or faded tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2709510
Mfg#:
17137543003
Back Ordered
$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#261723 - 17111742232 - Expansion Tank Cap - 1.4 Bar pressure - Mahle-Behr - BMW

1.4 Bar pressure

Brand:
Mahle-Behr - Corporate Logo
ES#:
261723
Mfg#:
17111742232
Ships in 2 Business Days
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2534586 - 17114379047 - Expansion Tank Cap - 1.2 Bar pressure - URO - BMW

1.2 Bar pressure 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with production date up to 09/1987

Brand:
URO - Corporate Logo
ES#:
2534586
Mfg#:
17114379047
Back Ordered
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2534584 - 17111468077 - Expansion Tank Cap - 1.4 Bar pressure - URO - BMW

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

Brand:
URO - Corporate Logo
ES#:
2534584
Mfg#:
17111468077
Back Ordered
Auto Notify
$6.99 USD
Free Shipping
on orders $49 and up
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

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
07-21-2026

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

Coolant Expansion Tank

ES#5341174 - 17139485733 - Coolant Expansion Tank - Prevents overheating, OE fit, durable materials, heat resistant, pressure-tested. - Rein - BMW

Prevents overheating, OE fit, durable materials, heat resistant, pressure-tested. 2X Entries For Our 25th Anniversary Sweepstakes!
2X Entries For Our G87 M2 Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5341174
Mfg#:
17139485733
Ships in 4 Business Days
$64.99

This product was last offered at the strikethrough price on
04-27-2026

$52.99 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank

ES#2868199 - 17111723520 - Coolant Expansion Tank - Does not include cap or coolant level sensor - Febi - BMW

Does not include cap or coolant level sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2868199
Mfg#:
17111723520
Ships on Oct 16, 2026
ON SALE!
$54.99

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

$52.24 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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