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Audi Cooling Expansion Tank Parts

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ES#3575771 - 020807ECS01-01 - Black Carbon Fiber Expansion Tank Cover Kit  - Wrap your coolant tank, top to bottom, with carbon fiber! - ECS - Audi Volkswagen

Wrap your coolant tank, top to bottom, with carbon fiber! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3575771
Mfg#:
020807ECS01-01
In Stock
ON SALE!
$257.99

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

$245.09 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3991834 - 1K0121407F - Coolant Expansion Tank - See your coolant levels clearly again, comes with coolant level sensor - Genuine Volkswagen Audi - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3991834
Mfg#:
1K0121407F
In Stock
10% off MSRP

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

$81.16

This product was last offered at the strikethrough price on
12-22-2025

$72.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3575799 - 025263ECS01-01 - Carbon Fiber Expansion Tank Cover Kit  - Wrap your coolant ball, top to bottom, with carbon fiber! - ECS - Audi Volkswagen

Wrap your coolant ball, top to bottom, with carbon fiber! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3575799
Mfg#:
025263ECS01-01
In Stock
ON SALE!
$234.99

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

$223.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
This product has been superseded to ES#5477621
ES#4821589 - TGKacc02 - TGK Motorsport Coolant Tank AN Line Kit - C7/7.5 S6/S7 - top-tier solution to eliminate factory coolant line Failure - TGK Motorsport - Audi

top-tier solution to eliminate factory coolant line Failure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
TGK Motorsport - Corporate Logo
ES#:
4821589
Mfg#:
TGKACC02
In Stock
$256.99

This product was last offered at the strikethrough price on
04-20-2026

$229.99 USD
Free Shipping
ES#4212849 - 5Q0121407T - Expansion Tank - See your coolant levels clearly again, comes with coolant level sensor - URO - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4212849
Mfg#:
5Q0121407T
In Stock
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3496004 - 99110645702 - Porsche 911 Expansion Tank Cap - Black and satin aluminum colored coolant cap from the Porsche 991. - Genuine Porsche - Audi Volkswagen Porsche

Black and satin aluminum colored coolant cap from the Porsche 991. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Porsche - Corporate Logo
ES#:
3496004
Mfg#:
99110645702
In Stock
$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3412041 - 5Q0121407G - Expansion Tank - See your coolant levels clearly again, comes with coolant level sensor - Hudson - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hudson - Corporate Logo
ES#:
3412041
Mfg#:
5Q0121407G
In Stock
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4691207 - 420121321 - Audi R8 Expansion Tank Cap - Keep proper pressure on your coolant, replaces any modern blue or black cooling cap - Bremmen Parts - Audi Volkswagen Porsche

Keep proper pressure on your coolant, replaces any modern blue or black cooling cap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4691207
Mfg#:
420121321
In Stock
ON SALE! SAVE 14%
$34.99

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

$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3672035 - 5q0121407tKT1 - Coolant Expansion Tank Kit  - Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank replacement kit. - Genuine Volkswagen Audi - Audi Volkswagen

Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank replacement kit. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3672035
Mfg#:
5Q0121407TKT1
In Stock
$183.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#253082 - 3B0121321 - Expansion Tank Cap - Keep proper pressure in your coolant system - Genuine Volkswagen Audi - Audi Volkswagen

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
253082
Mfg#:
3B0121321
In Stock
25% off MSRP

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

$39.59

This product was last offered at the strikethrough price on
01-08-2026

$29.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2597343 - 42012132118T - Expansion Tank Replacement Kit - Complete Assembly With Porsche Cap - Add some style with this reservoir kit which includes an aluminum Porsche coolant cap! - Assembled By ECS - Audi Volkswagen

Add some style with this reservoir kit which includes an aluminum Porsche coolant cap! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2597343
Mfg#:
42012132118T
In Stock
ON SALE!
$82.99

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

$80.56 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4620720 - CTS-ACC-009 - CTS Coolant Tank Cap - Lose the plastic! - CTS - Audi Volkswagen

Lose the plastic! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4620720
Mfg#:
CTS-ACC-009
In Stock
$69.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4220544 - 8K0121403AC - Coolant Expansion Tank - Plastic reservoir for the coolant system - Febi - 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:
Febi - Corporate Logo
ES#:
4220544
Mfg#:
8K0121403AC
In Stock
$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2762641 - 8K0121405MKT1 - Expansion Tank Replacement Kit - Install a brand new expansion tank with a new cap and hardware - Assembled By ECS - Audi

Install a brand new expansion tank with a new cap and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Up to production date 3/11/2008

Brand:
Assembled By ECS - Corporate Logo
ES#:
2762641
Mfg#:
8K0121405MKT1
Ships in 6 Business Days
ON SALE! SAVE 13%
$99.99

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

$86.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1905029 - 1J0121407F - Coolant Expansion Tank - Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank - Genuine Volkswagen Audi - Audi Volkswagen

Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1905029
Mfg#:
1J0121407F
In Stock
27% off MSRP

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

$77.15

This product was last offered at the strikethrough price on
06-07-2026

$56.17 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4008182 - 8W0121081ED - Expansion Tanks Breather Line  - keep your engine temps where they are supposed to be! - Genuine Volkswagen Audi - Audi

keep your engine temps where they are supposed to be! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4008182
Mfg#:
8W0121081ED
In Stock
5% off MSRP

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

$36.99

This product was last offered at the strikethrough price on
06-07-2026

$34.99 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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