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Audi A4 Coolant Expansion Tank Kits

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ES#2593538 - 8K0121403QKT - Coolant Expansion Tank Replacement Kit - Everything you need to replace your faded, cracked, or leaky expansion tank! - Genuine Volkswagen Audi - Audi

Everything you need to replace your faded, cracked, or leaky expansion tank! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2593538
Mfg#:
8K0121403QKT
Ships in 1-2 days
$140.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3658445 - 3b0121321ktKT2 - Coolant Expansion Tank Replacement Kit - Everything you need to replace your faded, cracked, or leaky expansion tank! - Assembled By ECS - Audi

Everything you need to replace your faded, cracked, or leaky expansion tank! 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#:
3658445
Mfg#:
3B0121321KTKT2
Ships on Jun 8, 2026
ON SALE! SAVE 13%
$61.99

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

$53.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2587386 - 8E0121403KT2 - Expansion Tank Replacement Kit - Everything in one kit to replace your coolant expansion tank - Assembled By ECS - Audi

Everything in one kit to replace your coolant expansion tank 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#:
2587386
Mfg#:
8E0121403KT2
In Stock
ON SALE!
$47.99

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

$45.38 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2678370 - 8K0121405NKT - 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!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2678370
Mfg#:
8K0121405NKT
Ships on Jun 8, 2026
ON SALE!
$86.99

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

$85.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2598438 - 8D0121403DR8KT -  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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 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#:
2598438
Mfg#:
8D0121403DR8KT
Back Ordered
$335.53 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2586930 - 8E0121403KT1 - Expansion Tank Replacement Kit - Everything you need to replace your faded, cracked, or leaky expansion tank! - Assembled By ECS - Audi

Everything you need to replace your faded, cracked, or leaky expansion tank! 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#:
2586930
Mfg#:
8E0121403KT1
In Stock
ON SALE!
$47.99

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

$45.38 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3969908 - 8w0121405fKT1 - 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits from production date 11/13/2017 up to 1/14/2019

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3969908
Mfg#:
8W0121405FKT1
Ships in 2 Business Days
$252.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2966326 - 8D0121403LxKT - 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 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#:
2966326
Mfg#:
8D0121403LXKT
Ships in 2 Business Days
ON SALE!
$49.99

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

$47.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2580975 - 8D0121403LKT - Expansion Tank Replacement Kit - Install a brand new expansion tank with a new cap and hardware - Genuine Volkswagen Audi - Audi Volkswagen

Install a brand new expansion tank with a new cap and hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From VIN 8D-W-007800, split is in the 1998 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2580975
Mfg#:
8D0121403LKT
Ships in 2 Business Days
$174.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2649681 - 8E0121403AKT1 - Expansion Tank Replacement Kit - Composed of genuine Audi parts to fix your leaking coolant expansion tank. - Genuine Volkswagen Audi - Audi

Composed of genuine Audi parts to fix your leaking coolant expansion tank. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2649681
Mfg#:
8E0121403AKT1
In Stock
$139.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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. 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#:
2586894
Mfg#:
8E0121403KT
In Stock
ON SALE! SAVE 44%
$158.99

This product was last offered at the strikethrough price on
02-08-2026

$89.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2587387 - 8E0121403KT3 - Expansion Tank Replacement Kit - Everything in one kit to replace your coolant expansion tank - Assembled By ECS - Audi

Everything in one kit to replace your coolant expansion tank 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#:
2587387
Mfg#:
8E0121403KT3
In Stock
ON SALE! SAVE 50%
$140.99

This product was last offered at the strikethrough price on
01-09-2026

$70.27 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2649683 - 8E0121403AKT2 - Expansion Tank Replacement Kit - Everything you need to replace your faded, cracked, or leaky expansion tank! - Assembled By ECS - Audi

Everything you need to replace your faded, cracked, or leaky expansion tank! 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#:
2649683
Mfg#:
8E0121403AKT2
Ships in 1-2 days
ON SALE!
$65.99

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

$64.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2580983 - 8D0121403LKT1 - 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
From VIN 8D-W-007800, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2580983
Mfg#:
8D0121403LKT1
Ships in 2 Business Days
ON SALE!
$49.99

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

$47.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2966327 - 8D0121403LXKT1 - 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 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#:
2966327
Mfg#:
8D0121403LXKT1
Ships in 2 Business Days
ON SALE!
$49.99

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

$47.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2586883 - 8D0121403DUROKT -  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 VIN 8D-W-007799, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586883
Mfg#:
8D0121403DUROKT
Back Ordered
ON SALE!
$34.99

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

$33.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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