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BMW Cooling Expansion Tank Parts

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Coolant Expansion Tank Kit

ES#4776041 - 17138677649EKT - Coolant Expansion Tank Kit - Includes both the Engine Coolant Expansion Tank and Charge Air Cooler Coolant Expansion Tank, plus both of the expansion tank caps - Assembled By ECS - BMW

Includes both the Engine Coolant Expansion Tank and Charge Air Cooler Coolant Expansion Tank, plus both of the expansion tank caps 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4776041
Mfg#:
17138677649EKT
Ships in 2 Business Days
ON SALE!
$208.99

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

$202.62 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbon Coolant Expansion Tank Cap Cover (Red Carbon)

ES#4900218 - BM-0803-RC - Carbon Coolant Expansion Tank Cap Cover (Red Carbon) - Upgrade to AutoTecknics Pre-Preg Carbon Fiber Coolant Expansion Tank Cap Cover in Red Carbon and give your BMW the exclusive, high-performance look it deserves. - Autotech - BMW

Upgrade to AutoTecknic’s Pre-Preg Carbon Fiber Coolant Expansion Tank Cap Cover in Red Carbon and give your BMW the exclusive, high-performance look it deserves.

Brand:
Autotech - Corporate Logo
ES#:
4900218
Mfg#:
BM-0803-RC
Ships in 7 Business Days
$74.99 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank

ES#4343543 - 17137590626 - Coolant Expansion Tank - Includes sensor - Febi - BMW

Includes sensor We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4343543
Mfg#:
17137590626
Ships in 1 Business Day
$123.99

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

$120.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Rein Coolant Expansion Tank - With Cap

ES#5470511 - 17135A6A030C - Rein Coolant Expansion Tank - With Cap - Replace your old brittle expansion tank - Rein - BMW

Replace your old brittle expansion tank 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Rein - Corporate Logo
ES#:
5470511
Mfg#:
17135A6A030C
Ships in 3 Business Days
ON SALE!
$99.99

This product was last offered at the strikethrough price on
08-31-2026

$94.07 USD

Expansion Tank With Cap

ES#5374576 - EPK0138 - Expansion Tank With Cap - Includes vent screw and leveling switch - Rein - BMW

Includes vent screw and leveling switch 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Rein - Corporate Logo
ES#:
5374576
Mfg#:
EPK0138
Ships in 3 Business Days
ON SALE!
$71.99

This product was last offered at the strikethrough price on
08-31-2026

$68.25 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#5491333 - 171386106612 - Coolant Expansion Tank - Coolant reservoir tank dedicated to the intake charge air cooler system - Rein - BMW

Coolant reservoir tank dedicated to the intake charge air cooler system 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Rein - Corporate Logo
ES#:
5491333
Mfg#:
171386106612
Ships in 3 Business Days
ON SALE!
$49.99

This product was last offered at the strikethrough price on
08-31-2026

$47.49 USD

Expansion Tank Kit

ES#5491326 - 17138610661 - Expansion Tank Kit - Coolant reservoir tank dedicated to the intake charge air cooler system - Rein - BMW

Coolant reservoir tank dedicated to the intake charge air cooler system 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Rein - Corporate Logo
ES#:
5491326
Mfg#:
17138610661
Ships in 3 Business Days
ON SALE!
$56.99

This product was last offered at the strikethrough price on
08-31-2026

$54.14 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 Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4883205
Mfg#:
17138617045
Ships in 3 Business Days
ON SALE!
$73.99

This product was last offered at the strikethrough price on
08-31-2026

$69.55 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 Into Our F80 M3 Sweepstakes

Brand:
Rein - Corporate Logo
ES#:
5374578
Mfg#:
EPK0025
Ships in 3 Business Days
ON SALE!
$74.99

This product was last offered at the strikethrough price on
08-31-2026

$70.63 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Kit

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

Cooling system expansion tank 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Rein - Corporate Logo
ES#:
5374535
Mfg#:
EPK0151
Ships in 3 Business Days
ON SALE!
$100.99

This product was last offered at the strikethrough price on
08-31-2026

$95.28 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 Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3499711
Mfg#:
17127536236
Ships in 3 Business Days
ON SALE!
$27.99

This product was last offered at the strikethrough price on
08-31-2026

$26.59 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 Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3499691
Mfg#:
17127519258
Ships in 3 Business Days
ON SALE!
$56.99

This product was last offered at the strikethrough price on
08-31-2026

$54.14 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 Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534590
Mfg#:
17111712835
Ships in 1 Business Day
$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 Into Our F80 M3 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 1 Business Day
$90.99 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank Cap

ES#5493317 - 17138665638 - Coolant Expansion Tank Cap - Seals the high temp circuit expansion tank, preventing coolant and pressure loss - URO - BMW

Seals the high temp circuit expansion tank, preventing coolant and pressure loss 2X Entries Into Our F80 M3 Sweepstakes

Brand:
URO - Corporate Logo
ES#:
5493317
Mfg#:
17138665638
Ships in 1 Business Day
$25.99 USD

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
Ships in 1 Business Day
$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

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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