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Audi A4 Engine Cooling Parts

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ES#3683 - N90365302 - Sealing O-Ring - Priced Each - Install a new o-ring for a proper seal. 20X3 - Corteco - Audi Volkswagen

Install a new o-ring for a proper seal. 20X3 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
O-Ring for the faulty coolant "J-Plug" that is located next to the thermostat.

Brand:
Corteco - Corporate Logo
ES#:
3683
Mfg#:
N90365302
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2993398 - 06L121081K - Coolant Bypass Hose - connects to coolant hose connector that mounts in the cylinder head - Genuine Volkswagen Audi - Audi

connects to coolant hose connector that mounts in the cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2993398
Mfg#:
06L121081K
Ships in 1 day
9% off MSRP

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

$78.99

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

$71.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2828404 - 06F121011 - Water Pump - Featuring a metal impeller - URO - Audi Volkswagen

Featuring a metal impeller 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#:
2828404
Mfg#:
06F121011
Ships in 1 Business Day
$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4147274 - 30100375 - Universal 12" Electric Fan - Black - 861 CFM. High performance puller fan with straight blades. - Spal - Audi BMW MINI

861 CFM. High performance puller fan with straight blades. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Spal - Corporate Logo
ES#:
4147274
Mfg#:
30100375
In Stock
13% off MSRP

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

$114.99

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

$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3509688 - 022731ECS01-01 - Billet Coolant Reservoir Cap - Black Anodized - Lose the plastic! - ECS - Audi

Lose the plastic! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3509688
Mfg#:
022731ECS01-01
In Stock
ON SALE! SAVE 25%
$94.99

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

$71.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3435242 - 06E121111G - Thermostat - Includes housing and gasket. - Rein - Audi

Includes housing and gasket. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3435242
Mfg#:
06E121111G
Ships in 2 Business Days
$82.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2794822 - 06A121011L - Water Pump  - Featuring a metal impeller - URO - Audi Volkswagen

Featuring a metal impeller 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#:
2794822
Mfg#:
06A121011L
In Stock
$44.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#468761 - N10668401 - Hex Bolt - Priced Each - Install new hardware with your new parts. M8x16 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M8x16 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures hard coolant return pipe to the thermostat assembly

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
468761
Mfg#:
N10668401
In Stock
3% off MSRP

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

$5.40

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

$5.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2855412 - MM0C-19 - Replacement Universal Oil Cooler - 19 Row - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
2855412
Mfg#:
MM0C-19
In Stock
$218.99

This product was last offered at the strikethrough price on
05-06-2026

$196.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1894615 - 059121012B - Additional Water Pump - Connects to the turbo return hose and heater core supply hose - Genuine Volkswagen Audi - Audi Volkswagen

Connects to the turbo return hose and heater core supply hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From the 2013 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1894615
Mfg#:
059121012B
Ships in 6 Business 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.

$208.99

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

$194.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3659112 - 8K0121055N - Lower Radiator Hose - Keep your cooling system hoses free from cracks - Rein - Audi

Keep your cooling system hoses free from cracks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3659112
Mfg#:
8K0121055N
In Stock
$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2582076 - 8D0121403L - Coolant Expansion Tank - Includes integrated coolant level sensor - Vaico - Audi Volkswagen

Includes integrated coolant level sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
From VIN 8D-W-007800, split is in the 1998 model year

Brand:
Vaico - Corporate Logo
ES#:
2582076
Mfg#:
8D0121403L
In Stock at Vendor
$47.99

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

$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2608077 - 040202 - Radiator Relief Flush - Concentrated cleansing agent that effectively cleans your cooling system! - DEI - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Concentrated cleansing agent that effectively cleans your cooling system! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
DEI - Corporate Logo
ES#:
2608077
Mfg#:
040202
In Stock
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#516227 - N90686902 - Spring Band Clamp - Priced Each - Ensure a leak free installation. 23x12 - Genuine Volkswagen Audi - Audi Volkswagen

Ensure a leak free installation. 23x12 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures oil cooler hose to both the oil cooler, and the coolant hard pipe

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
516227
Mfg#:
N90686902
In Stock
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4818427 - 059919501A - Coolant Temperature Sensor - Green coolant temp sensor, located commonly in the cooling flange near the head - Bremmen Parts - Audi Volkswagen

Green coolant temp sensor, located commonly in the cooling flange near the head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Located in the coolant flange

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818427
Mfg#:
059919501A
In Stock
ON SALE! SAVE 24%
$15.99

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

$12.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#261829 - 8D0121403L - Coolant Expansion Tank - Includes integrated coolant level sensor - Genuine Volkswagen Audi - Audi Volkswagen

Includes integrated coolant level sensor 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#:
261829
Mfg#:
8D0121403L
In Stock
$132.32 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Cooling Parts

Optimize your engine cooling system performance and heater output with quality drive belts, coolant hoses, cooling system parts, and approved coolant fluids from ECS Tuning. Head off expensive repairs and untimely breakdowns with regularly scheduled cooling system inspection and maintenance.

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