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BMW Cooling Expansion Tank Parts

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Coolant Expansion Tank Hose

ES#5491184 - 17125A09423 - Coolant Expansion Tank Hose - Replacement coolant hose that connects the upper radiator to the expansion tank - Rein - BMW

Replacement coolant hose that connects the upper radiator to the expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5491184
Mfg#:
17125A09423
Ships in 4 Business Days
$18.99 USD
Free Shipping
on orders $49 and up

Charge Air Cooler Expansion Tank

ES#4883205 - 17138617045 - Charge Air Cooler Expansion Tank - Replace your cracked or leaking tank - Rein - BMW

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

Brand:
Rein - Corporate Logo
ES#:
4883205
Mfg#:
17138617045
Ships in 4 Business Days
$73.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank With Cap

ES#5374568 - EPK0146 - Expansion Tank With Cap - Includes level sensor - Rein - BMW

Includes level sensor 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5374568
Mfg#:
EPK0146
Ships in 4 Business Days
$93.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank With Cap

ES#5374578 - EPK0025 - Expansion Tank With Cap - Includes bleeder screw - Rein - BMW

Includes bleeder screw 2X Entries For Our 25th Anniversary Sweepstakes!
2X Entries For Our G87 M2 Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5374578
Mfg#:
EPK0025
Ships in 4 Business Days
$74.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank With Cap - E6x

ES#5374546 - EPK0128 - Expansion Tank With Cap - E6x - Includes fluid level sensor - Rein - BMW

Includes fluid level sensor 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5374546
Mfg#:
EPK0128
Ships in 4 Business Days
$86.99

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

$74.99 USD
Free Shipping
on orders $49 and up

Expansion Tank Kit

ES#5374535 - EPK0151 - Expansion Tank Kit - Cooling system expansion tank - Rein - BMW

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

Brand:
Rein - Corporate Logo
ES#:
5374535
Mfg#:
EPK0151
Ships in 4 Business Days
$100.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Vent Hose

ES#3499711 - 17127536236 - Coolant Vent Hose - Connects the upper radiator hose to the expansion tank - Rein - BMW

Connects the upper radiator hose to the expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3499711
Mfg#:
17127536236
Ships in 4 Business Days
$27.99 USD
Free Shipping
on orders $49 and up

Expansion Tank Return Hose

ES#3499691 - 17127519258 - Expansion Tank Return Hose - Connects between the top of the radiator and the bottom of the expansion tank - Rein - BMW

Connects between the top of the radiator and the bottom of the expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3499691
Mfg#:
17127519258
Ships in 4 Business Days
$56.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2534590 - 17111712835 - Coolant Expansion Tank - Does not include cap or coolant level sensor - URO - 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:
URO - Corporate Logo
ES#:
2534590
Mfg#:
17111712835
Ships in 2 Business Days
$18.99 USD
Free Shipping
on orders $49 and up

Expansion Tank Mounting Plate

ES#4316585 - 17113400018 - Expansion Tank Mounting Plate - Secures the expansion tank to the radiator - URO - BMW

Secures the expansion tank to the radiator 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with a manual transmission

Brand:
URO - Corporate Logo
ES#:
4316585
Mfg#:
17113400018
Ships in 2 Business Days
$90.99 USD
Free Shipping
on orders $49 and up

Expansion Tank

ES#4875594 - 17135A6A031 - 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#:
4875594
Mfg#:
17135A6A031
Ships in 2 Business Days
$102.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Coolant Expansion Tank

ES#4348591 - 17138677649 - Engine Coolant Expansion Tank - Replace your cracked or leaking tank - Does not include cap or coolant level sensor - Vaico - BMW

Replace your cracked or leaking tank - Does not include cap or coolant level sensor We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4348591
Mfg#:
17138677649
In Stock at Vendor
$258.99

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

$251.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Coolant Expansion Tank

Eliminate your failure-prone plastic tank!

Brand:
Moroso - Corporate Logo
ES#:
4812407
Mfg#:
63799
In Stock at Vendor
$459.99 USD
Free Shipping
on orders $49 and up

Upgraded Silicone Upper Vent Hose - Black

By utilizing high-grade silicone rather than standard rubber and plastic, VTT offers a hose that stays flexible and robust through countless heat cycles. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
5446529
Mfg#:
N54CLVTBLKO
Ships on Aug 5, 2026
$54.99 USD
Free Shipping

expansion tank

ES#2874180 - 17137647284 - expansion tank - Replace your cracked tank - Febi - BMW

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

Brand:
Febi - Corporate Logo
ES#:
2874180
Mfg#:
17137647284
Ships in 1-2 days
$125.23 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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