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Volkswagen GTI Cooling Expansion Tank Parts

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Coolant Pipe

ES#4172032 - 1K0121070BD - Coolant Pipe - Pair of plastic coolant lines between the auxiliary water pump and lower expansion tank hose - Rein - Audi Volkswagen

Pair of plastic coolant lines between the auxiliary water pump and lower expansion tank hose 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4172032
Mfg#:
1K0121070BD
In Stock at Vendor
$52.99

This product was last offered at the strikethrough price on
10-22-2026

$34.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2709040 - 3B0121321 - Expansion Tank Cap - Keep proper pressure in your coolant system - URO - Audi Volkswagen

Keep proper pressure in your coolant system 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2709040
Mfg#:
3B0121321
In Stock
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Build-Your-Own Carbon Fiber Expansion Tank Cover Kit

ES#4067034 - 020807ECS01 - Build-Your-Own Carbon Fiber Expansion Tank Cover Kit - Select your own expansion tank cover color and cap to enhance your engine bay - ECS - Audi Volkswagen

Select your own expansion tank cover color and cap to enhance your engine bay 10X Entries Into Our F80 M3 Sweepstakes USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
4067034
Mfg#:
020807ECS01
Ships in 1-2 days
ON SALE!
Starting at $276.98 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expanding Nut - Priced Each

ES#422162 - 811807577C - Expanding Nut - Priced Each - Install new hardware with your new parts. - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
422162
Mfg#:
811807577C
In Stock
$2.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank With Carbon Fiber Cover

ES#4820175 - 5wa121407fKT - Coolant Expansion Tank With Carbon Fiber Cover - Cover your new coolant expansion tank with premium carbon fiber material! - Assembled By ECS - Volkswagen

Cover your new coolant expansion tank with premium carbon fiber material! 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
4820175
Mfg#:
5WA121407FKT
Ships in 8 Business Days
$251.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap - Black

ES#4004591 - 5Q0121321 - Expansion Tank Cap - Black - Keep proper pressure in your coolant system - Rein - Audi Volkswagen Porsche

Keep proper pressure in your coolant system 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4004591
Mfg#:
5Q0121321
In Stock
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Screw - Priced Each

ES#470958 - N90846602 - Expansion Tank Screw - Priced Each - Install new hardware with your new parts, 2 Required. 5x20 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts, 2 Required. 5x20

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
470958
Mfg#:
N90846602
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.

$3.99

This product was last offered at the strikethrough price on
11-06-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit - R8 Coolant Cap

ES#2598389 - 1K0121407A - Expansion Tank Replacement Kit - R8 Coolant Cap - Includes a tank, cap, cap seal and necessary mounting hardware - Assembled By ECS - Volkswagen

Includes a tank, cap, cap seal and necessary mounting hardware 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
2598389
Mfg#:
1K0121407A
Ships in 1-2 days
$335.68

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

$330.85 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2499502 - 1K0121407A - Coolant Expansion Tank - See your coolant levels clearly again, comes with coolant level sensor - Vaico - Audi Volkswagen

See your coolant levels clearly again, comes with coolant level sensor We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2499502
Mfg#:
1K0121407A
Ships in 1 Business Day
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vent Hose

ES#2737852 - 5Q0121447G - Vent Hose - Connects water pipe to expansion tank - Genuine Volkswagen Audi - Volkswagen

Connects water pipe to expansion tank

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2737852
Mfg#:
5Q0121447G
In Stock
17% off MSRP

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

$29.99

This product was last offered at the strikethrough price on
10-05-2026

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank And Cap

ES#5435354 - 5wa121407fkt1KT - Coolant Expansion Tank And Cap - Replace your cracked or faded expansion tank. - Genuine Volkswagen Audi - Audi Volkswagen

Replace your cracked or faded expansion tank.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5435354
Mfg#:
5WA121407FKT1KT
In Stock
$64.99

This product was last offered at the strikethrough price on
10-05-2026

$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

OE+ Steel Upgraded Coolant Pipe - With Clamps

ES#5507011 - CHU0681 - OE+ Steel Upgraded Coolant Pipe - With Clamps - Replace a brittle or leaking original coolant pipe to keep your cooling system reliable and prevent overheating. - Rein - Audi Volkswagen

Replace a brittle or leaking original coolant pipe to keep your cooling system reliable and prevent overheating. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Rein - Corporate Logo
ES#:
5507011
Mfg#:
CHU0681
In Stock
$58.99 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank

ES#5346938 - EPT0030 - Coolant Expansion Tank - Does not include cap - Rein - Audi Volkswagen

Does not include cap 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Rein - Corporate Logo
ES#:
5346938
Mfg#:
EPT0030
In Stock at Vendor
$20.99 USD
Free Shipping
on orders $49 and up

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

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818658
Mfg#:
5Q0121321
In Stock
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose - Lower

ES#315416 - 1K0122109AL - Expansion Tank Hose - Lower - Replace at the first signs of leakage - Genuine Volkswagen Audi - Audi Volkswagen

Replace at the first signs of leakage For vehicles with BPY engine code only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
315416
Mfg#:
1K0122109AL
Ships in 1-2 days
$81.99

This product was last offered at the strikethrough price on
09-30-2026

$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

2-Pin Connector - Priced Each

ES#319070 - 1K0973202 - 2-Pin Connector - Priced Each - Replace a broken connector to restore function - Genuine Volkswagen Audi - Audi Volkswagen

Replace a broken connector to restore function

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
319070
Mfg#:
1K0973202
Ships in 1-2 days
$9.99 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 Volkswagen

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Manufacturer names and/or part numbers are used only for identification purposes.

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