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Audi B8 Cooling Expansion Tank Parts

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ES#2762640 - 8K0121405MKT - Expansion Tank Replacement Kit - Install a brand new expansion tank with a new cap and hardware - Genuine Volkswagen Audi - Audi

Install a brand new expansion tank with a new cap and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to production date 3/11/2008

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2762640
Mfg#:
8K0121405MKT
Ships in 3 Business Days
$237.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4668543 - 8K0121405R - Coolant Expansion Tank - Includes the heat shield - Febi - Audi

Includes the heat shield affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Up to production date 3/11/2008

Brand:
Febi - Corporate Logo
ES#:
4668543
Mfg#:
8K0121405R
Ships in 8 Business Days
$72.99

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

$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3642053 - 8K0121405R - Coolant Expansion Tank - Includes the heat shield - Genuine Volkswagen Audi - Audi

Includes the heat shield affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to production date 3/11/2008

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3642053
Mfg#:
8K0121405R
Ships in 3 Business Days
8% off MSRP

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

$203.99

This product was last offered at the strikethrough price on
02-26-2026

$186.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3412065 - 8K0121405N - Coolant Expansion Tank - Includes the heat shield - Hudson - Audi

Includes the heat shield affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hudson - Corporate Logo
ES#:
3412065
Mfg#:
8K0121405N
Ships in 1 day
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#470540 - N90692901 - Coolant T Connector - Connects to the lower radiator hose - Genuine Volkswagen Audi - Audi Volkswagen

Connects to the lower radiator hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Connects lower radiator hose to the coolant expansion tank hose and water pump hose

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
470540
Mfg#:
N90692901
Ships in 1-2 days
9% off MSRP

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

$32.99

This product was last offered at the strikethrough price on
02-26-2026

$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4883484 - 8K0121405S - Coolant Expansion Tank - Includes the heat shield and cap - Rein - Audi

Includes the heat shield and cap 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#:
4883484
Mfg#:
8K0121405S
In Stock at Vendor
$52.99 USD
Free Shipping
on orders $49 and up
ES#1144660 - 4B3121321 - Expansion Tank Cap - Keep proper pressure on your coolant - Genuine Volkswagen Audi - Audi

Keep proper pressure on your coolant affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1144660
Mfg#:
4B3121321
Ships in 1-2 days
8% off MSRP

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

$58.99

This product was last offered at the strikethrough price on
02-26-2026

$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3615693 - PAB121403 - Coolant Expansion Tank - Plastic reservoir for the coolant system, cap not included. - Genuine Porsche - Audi Porsche

Plastic reservoir for the coolant system, cap not included. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Porsche - Corporate Logo
ES#:
3615693
Mfg#:
PAB121403
Ships in 2 Business Days
$72.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2891455 - 811807577C - Expanding Nut - Priced Each - Install new hardware with your new parts. - Vaico - Audi Volkswagen

Install new hardware with your new parts. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2891455
Mfg#:
811807577C
In Stock
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#450277 - 8K0121109AA - Expansion Tank Hose - Connects the expansion tank to the radiator - Genuine Volkswagen Audi - Audi

Connects the expansion tank to the radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450277
Mfg#:
8K0121109AA
Special Order: No Guaranteed ETA
8% off MSRP

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

$154.99

This product was last offered at the strikethrough price on
02-26-2026

$141.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4066649 - 8K0121403Q - Coolant Expansion Tank - Plastic reservoir for the coolant system - Hamburg Tech - Audi Porsche

Plastic reservoir for the coolant system 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#:
4066649
Mfg#:
8K0121403Q
Ships in 2 Business Days
$39.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4883482 - 8K0121405R - Coolant Expansion Tank - Includes cap - Rein - Audi

Includes cap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Up to production date 3/11/2008

Brand:
Rein - Corporate Logo
ES#:
4883482
Mfg#:
8K0121405R
Ships in 2 Business Days
$55.99 USD
Free Shipping
on orders $49 and up
ES#1285729 - 8R0121081M - Coolant Overflow Hose - Expansion Tank To Radiator - Genuine Volkswagen Audi - Audi

Expansion Tank To Radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1285729
Mfg#:
8R0121081M
Ships in 3 Business Days
8% off MSRP

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

$60.00

This product was last offered at the strikethrough price on
02-26-2026

$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4818658 - 5Q0121321 - Expansion Tank Cap - Black - Keep proper pressure in your coolant system - Bremmen Parts - Audi Volkswagen Porsche

Keep proper pressure in your coolant system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818658
Mfg#:
5Q0121321
Ships in 1 Business Day
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
ES#5433827 - 8K0121081AB - Expansion Tank Upper Hose - Overflow relief hose for the radiator - URO - Audi

Overflow relief hose for the radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
URO - Corporate Logo
ES#:
5433827
Mfg#:
8K0121081AB
In Stock
$27.99

This product was last offered at the strikethrough price on
03-11-2026

$23.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#450312 - 8K0129697 - Grommet Cap - Priced Each - Piece that the rubber grommet sits into on the bracket - Genuine Volkswagen Audi - Audi

Piece that the rubber grommet sits into on the bracket affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450312
Mfg#:
8K0129697
In Stock
$4.99 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.

Let us help you find the parts that fit your Audi

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