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Audi Cooling Expansion Tank Parts

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Expansion Tank Hose - Lower

Replace at the first signs of leakage

Brand:
Gates - Corporate Logo
ES#:
3235521
Mfg#:
1J0122109AQ
Ships on Aug 13, 2026
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

Plastic reservoir for the coolant system 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5397089
Mfg#:
8K0121403Q
Ships on Oct 12, 2026
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ON SALE! SAVE 16%
$30.99

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

$26.00 USD
Free Shipping
on orders $49 and up

Expansion Tank Replacement Kit W/ R8 Coolant Cap

ES#2652175 - 8E0121403DKT2 - Expansion Tank Replacement Kit W/ R8 Coolant Cap - Install a brand new expansion tank with a new R8 polished aluminum cap and hardware - Assembled By ECS - Audi

Install a brand new expansion tank with a new R8 polished aluminum cap and hardware 10X Entries For Our 25th Anniversary Sweepstakes!
From the 2002 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2652175
Mfg#:
8E0121403DKT2
Ships on Oct 21, 2026
$353.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

See your coolant levels clearly again, comes with coolant level sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4343694
Mfg#:
1K0121407
Special Order: No Guaranteed ETA
$24.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#4819043 - 4G0121081EP - Expansion Tank Hose - Expansion tank line that connects to the inner nipple next to the cap. - Vaico - Audi

Expansion tank line that connects to the inner nipple next to the cap. We Price Match - Give Us A Call or Chat!
For vehicles with production dates from 01/02/2016

Brand:
Vaico - Corporate Logo
ES#:
4819043
Mfg#:
4G0121081EP
Special Order: No Guaranteed ETA
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Overflow Hose

The hose that leads from the radiator to the expansion tank For 2017-2019 Models Only

Brand:
Vaico - Corporate Logo
ES#:
5470296
Mfg#:
4M0121081AJ
Special Order: No Guaranteed ETA
$23.99 USD

Expansion Tank Hose - Upper

Connects the expansion tank to the cylinder head flange We Price Match - Give Us A Call or Chat!
Up to production date 4/9/2012

Brand:
Vaico - Corporate Logo
ES#:
4819054
Mfg#:
8R0121081
Special Order: No Guaranteed ETA
$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#4901309 - 8K0121403AC - Coolant Expansion Tank - Plastic reservoir for the coolant system - Meyle - Audi

Plastic reservoir for the coolant system 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4901309
Mfg#:
8K0121403AC
Special Order: No Guaranteed ETA
$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#3970598 - 4D0121403C - Coolant Expansion Tank - Factory replacement for cracked tanks. - Meyle - Audi

Factory replacement for cracked tanks. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Up to the 1999 model year

Brand:
Meyle - Corporate Logo
ES#:
3970598
Mfg#:
4D0121403C
Special Order: No Guaranteed ETA
$47.99 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank

ES#4900411 - 1K0121407F - Coolant Expansion Tank - See your coolant levels clearly again, comes with coolant level sensor - Meyle - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4900411
Mfg#:
1K0121407F
Special Order: No Guaranteed ETA
$30.99 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank

ES#3970610 - 7L0121407F - Coolant Expansion Tank - Coolant level sensor enclosed in tank - Meyle - Audi Volkswagen

Coolant level sensor enclosed in tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
3970610
Mfg#:
7L0121407F
Special Order: No Guaranteed ETA
$110.99 USD
Free Shipping
on orders $49 and up

Expansion Tank Cap

ES#3970163 - 443121321 - Expansion Tank Cap - Keep proper pressure on your coolant - Meyle - Audi Volkswagen

Keep proper pressure on your coolant 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
3970163
Mfg#:
443121321
Special Order: No Guaranteed ETA
$5.99 USD
Free Shipping
on orders $49 and up

Expansion Tank Replacement Kit

ES#2586882 - 8D0121403DKT - 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 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8D-W-007799, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586882
Mfg#:
8D0121403DKT
Back Ordered
$59.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#3970565 - 8E0121403A - Coolant Expansion Tank - Replace your cracked or faded expansion tank. - Meyle - Audi

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

Brand:
Meyle - Corporate Logo
ES#:
3970565
Mfg#:
8E0121403A
Special Order: No Guaranteed ETA
$24.99 USD
Free Shipping
on orders $49 and up

Plastic Coolant Hose

ES#5341424 - 80A121081S - Plastic Coolant Hose - Connects the expansion tank to the radiator - Rein - Audi

Connects the expansion tank to the radiator 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5341424
Mfg#:
80A121081S
Back Ordered
$58.99 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank

ES#2535174 - 8D0121403D - Coolant Expansion Tank - Includes integrated coolant level sensor - URO - Audi

Includes integrated coolant level sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Up to VIN 8D-W-007799, split is in the 1998 model year

Brand:
URO - Corporate Logo
ES#:
2535174
Mfg#:
8D0121403D
Back Ordered
$17.99 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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