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Audi Cooling Expansion Tank Parts

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Coolant Expansion Tank

ES#2582072 - 8E0121403 - Coolant Expansion Tank - Plastic reservoir for cooling system - Vaico - Audi

Plastic reservoir for cooling system Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2582072
Mfg#:
8E0121403
Ships in 1 Business Day
$60.99

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

$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Vent Hose

ES#390026 - 4F0121107BB - Expansion Tank Vent Hose - Allows the coolant system to vent into the expansion tank - Genuine Volkswagen Audi - Audi

Allows the coolant system to vent into the expansion tank Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
390026
Mfg#:
4F0121107BB
Ships in 5 Business Days
13% off MSRP

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

$263.99

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

$228.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#382322 - 4E0121403G - Coolant Expansion Tank - Includes integrated coolant level sensor - Genuine Volkswagen Audi - Audi

Includes integrated coolant level sensor Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
382322
Mfg#:
4E0121403G
Ships in 1-2 days
10% off MSRP

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

$126.99

This product was last offered at the strikethrough price on
08-07-2026

$114.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit

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 Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Up to production date 3/11/2008

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2762640
Mfg#:
8K0121405MKT
Ships in 1-2 days
$237.99

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

$225.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#4143246 - 4N0121405AF - Coolant Expansion Tank - Includes integrated coolant level sensor and cap - Genuine Volkswagen Audi - Audi

Includes integrated coolant level sensor and cap Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4143246
Mfg#:
4N0121405AF
In Stock
Limited Qty Sale
$244.00

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

$222.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit - Complete Assembly

ES#3660804 - 8k0121405nkt2KT3 - Expansion Tank Replacement Kit - Complete Assembly - Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank replacement kit. - Genuine Volkswagen Audi - Audi

Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank replacement kit. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3660804
Mfg#:
8K0121405NKT2KT3
Ships in 1-2 days
$233.99

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

$221.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#1692 - 1J0121321B - Expansion Tank Cap - Keep proper pressure in your coolant system - Febi - Audi Volkswagen Porsche

Keep proper pressure in your coolant system Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
1692
Mfg#:
1J0121321B
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Overflow Hose

ES#3012963 - 4M0121081AJ - Coolant Overflow Hose - The hose that leads from the radiator to the expansion tank - Genuine Volkswagen Audi - Audi

The hose that leads from the radiator to the expansion tank Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3012963
Mfg#:
4M0121081AJ
Ships in 1-2 days
12% off MSRP

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

$49.99

This product was last offered at the strikethrough price on
10-28-2026

$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#5388789 - 1J0121407F - Coolant Expansion Tank - Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank - Bremmen Parts - Audi Volkswagen

Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Bremmen Parts - Corporate Logo
ES#:
5388789
Mfg#:
1J0121407F
Ships on Feb 24, 2027
ON SALE! SAVE 15%
$13.99

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

$11.89 USD
Free Shipping
on orders $49 and up

expansion tank hose - Upper

ES#2696640 - 8R0121081BP - expansion tank hose - Upper - Connects the expansion tank to the cylinder head flange - Genuine Volkswagen Audi - Audi

Connects the expansion tank to the cylinder head flange Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
From production date 12/11/2012

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2696640
Mfg#:
8R0121081BP
Ships in 3 Business 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.

$76.99

This product was last offered at the strikethrough price on
10-26-2026

$69.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#1144660 - 4B3121321 - Expansion Tank Cap - Keep proper pressure on your coolant - Genuine Volkswagen Audi - Audi

Keep proper pressure on your coolant Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1144660
Mfg#:
4B3121321
Ships in 3 Business Days
14% 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
10-05-2026

$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit - Complete Assembly

ES#2762975 - 1j0121407fkt - Expansion Tank Replacement Kit - Complete Assembly - Clean up your engine bay or replace your cracked unit with a new coolant expansion tank replacement kit. - Genuine Volkswagen Audi - Audi Volkswagen

Clean up your engine bay or replace your cracked unit with a new coolant expansion tank replacement kit. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2762975
Mfg#:
1J0121407FKT
In Stock
$98.12

This product was last offered at the strikethrough price on
09-03-2026

$96.32 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit

ES#2586894 - 8E0121403KT - Expansion Tank Replacement Kit - Composed of genuine Audi parts to fix your leaking coolant expansion tank. - Assembled By ECS - Audi

Composed of genuine Audi parts to fix your leaking coolant expansion tank. 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586894
Mfg#:
8E0121403KT
Ships in 1-2 days
ON SALE!
$90.99

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

$88.66 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#3642053 - 8K0121405R - Coolant Expansion Tank - Includes the heat shield - Genuine Volkswagen Audi - Audi

Includes the heat shield Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Up to production date 3/11/2008

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3642053
Mfg#:
8K0121405R
Ships in 1-2 days
13% 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
08-31-2026

$176.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Breather Hose

ES#2103023 - 4G0121081AH - Coolant Expansion Tank Breather Hose - Expansion tank line that connects to the inner nipple next to the cap. - Genuine Volkswagen Audi - Audi

Expansion tank line that connects to the inner nipple next to the cap. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For vehicles with production date through 2015

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2103023
Mfg#:
4G0121081AH
Ships in 3 Business 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.

$96.99

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

$87.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap - Black

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 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818658
Mfg#:
5Q0121321
In Stock
ON SALE! SAVE 31%
$15.99

This product was last offered at the strikethrough price on
09-16-2026

$10.99 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 Audi Cooling Expansion Tank Parts

Let us help you find the parts that fit your Audi

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