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Audi Cooling Expansion Tank Parts

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Expansion Tank Hose - Upper

ES#5433719 - 1K0122447EQ - Expansion Tank Hose - Upper - Replace at the first signs of leakage - URO - Audi Volkswagen

Replace at the first signs of leakage 2X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with FSI engines only

Brand:
URO - Corporate Logo
ES#:
5433719
Mfg#:
1K0122447EQ
Ships in 1 Business Day
$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit

ES#2628278 - 8E0121403DKT - 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!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2628278
Mfg#:
8E0121403DKT
Ships on Oct 21, 2026
ON SALE!
$64.99

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

$62.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#4901335 - 8W0121405L - Coolant Expansion Tank - Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank - Meyle - Audi

Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For Vehicles with CYMC Engine Code Only

Brand:
Meyle - Corporate Logo
ES#:
4901335
Mfg#:
8W0121405L
Ships on Nov 20, 2026
Auto Notify
$61.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#3189293 - 603-638 - Coolant Expansion Tank - Plastic reservoir for cooling system - Dorman - Audi

Plastic reservoir for cooling system

Brand:
Dorman - Corporate Logo
ES#:
3189293
Mfg#:
603-638
Ships in 4 Business Days
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2586507 - 8A0121403A - Coolant Expansion Tank - Includes internal level sensor - Febi - Audi

Includes internal level sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2586507
Mfg#:
8A0121403A
In Stock at Vendor
$57.99

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

$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2815874 - 4F0121403B - Coolant Expansion Tank - Plastic reservoir for the cooling system - Hamburg Tech - Audi

Plastic reservoir for the cooling system We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2815874
Mfg#:
4F0121403B
Ships in 1 Business Day
$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2872375 - 8A0121403C - Coolant Expansion Tank - Plastic reservoir for cooling system - Febi - Audi

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

Brand:
Febi - Corporate Logo
ES#:
2872375
Mfg#:
8A0121403C
In Stock at Vendor
$60.99

This product was last offered at the strikethrough price on
02-28-2026

$53.70 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#3189267 - 603-263 - Coolant Expansion Tank - Includes integrated coolant level sensor - Dorman - Audi

Includes integrated coolant level sensor

Brand:
Dorman - Corporate Logo
ES#:
3189267
Mfg#:
603-263
Ships in 4 Business Days
$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#300926 - 1C9121321 - Expansion Tank Cap - Keep proper pressure in your coolant system - Genuine Volkswagen Audi - Audi Volkswagen

Keep proper pressure in your coolant system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
300926
Mfg#:
1C9121321
Ships in 1-2 days
7% off MSRP

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

$55.99

This product was last offered at the strikethrough price on
07-24-2026

$51.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Upper Hose

ES#3714099 - 8K0121081AB - Expansion Tank Upper Hose - Overflow relief hose for the radiator - Rein - Audi

Overflow relief hose for the radiator 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3714099
Mfg#:
8K0121081AB
In Stock at Vendor
$51.99

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

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

Coolant Expansion Tank

Plastic reservoir for the cooling system

Brand:
Mahle-Behr - Corporate Logo
ES#:
4669393
Mfg#:
4F0121403M
In Stock at Vendor
$51.99

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

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

Expansion Tank Replacement Kit

ES#2738904 - 8D0121403LKT3 - Expansion Tank Replacement Kit - Install a brand new expansion tank with a new cap and hardware - Assembled By ECS - Audi Volkswagen

Install a brand new expansion tank with a new cap and hardware 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2738904
Mfg#:
8D0121403LKT3
In Stock
ON SALE!
$51.99

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

$50.44 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Hose

ES#4920210 - 8K0121081AH - Coolant Expansion Tank Hose - Located between the coolant expansion tank and the cylinder head coolant flange - URO - Audi

Located between the coolant expansion tank and the cylinder head coolant flange 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO - Corporate Logo
ES#:
4920210
Mfg#:
8K0121081AH
Ships in 1 Business Day
$49.99 USD
Free Shipping
on orders $49 and up

Expansion Tank Cap

ES#2091199 - 8E0121321 - Expansion Tank Cap - Plastic pressure cap for expansion tank - Genuine Volkswagen Audi - Audi

Plastic pressure cap for expansion tank

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2091199
Mfg#:
8E0121321
Ships in 1-2 days
11% off MSRP

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

$55.99

This product was last offered at the strikethrough price on
07-24-2026

$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Screw - Priced Each

ES#467231 - N10003203 - Screw - Priced Each - Install new hardware with your new parts. 4.8x19 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. 4.8x19 Used to secure the coolant expansion tank

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467231
Mfg#:
N10003203
Ships in 2 Business Days
25% off MSRP

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

$2.78

This product was last offered at the strikethrough price on
05-15-2026

$2.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2840848 - 4A0121403 - Coolant Expansion Tank - Replace your cracked tank - Behr - Audi

Replace your cracked tank

Brand:
Behr - Corporate Logo
ES#:
2840848
Mfg#:
4A0121403
In Stock at Vendor
$51.99

This product was last offered at the strikethrough price on
03-04-2026

$47.99 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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