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Audi S4 Engine Cooling Parts

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Hexagon Socket Head Bolt - Priced Each

ES#467456 - N10124306 - Hexagon Socket Head Bolt - Priced Each - M6x20 bolt used in various areas on your European vehicle - Genuine Volkswagen Audi - Audi Volkswagen

M6x20 bolt used in various areas on your European vehicle Secures cooling flange/water pipe to cylinder heads

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467456
Mfg#:
N10124306
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Cap

ES#3485290 - 2Q0121321A - Coolant Expansion Tank Cap - Keep proper pressure in your coolant system - Genuine Volkswagen Audi - Audi Volkswagen Porsche

Keep proper pressure in your coolant system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3485290
Mfg#:
2Q0121321A
Ships on Sep 8, 2026
2% off MSRP

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

$42.99

This product was last offered at the strikethrough price on
09-06-2026

$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Radiator Hose

ES#252442 - 8E0121055AD - Lower Radiator Hose - Complete assembly with quick-coupling piece - Genuine Volkswagen Audi - Audi

Complete assembly with quick-coupling piece Connects thermostat to the lower main radiator and the left side additional radiator

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
252442
Mfg#:
8E0121055AD
Ships in 2 Business Days
20% off MSRP

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

$238.99

This product was last offered at the strikethrough price on
04-17-2026

$190.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#4727594 - 06E121119J - Sealing O-Ring - Priced Each - Seals the coolant flange to the supercharger compressor - Elring - Audi

Seals the coolant flange to the supercharger compressor 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
4727594
Mfg#:
06E121119J
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Control Unit

ES#2816318 - 8D0959501D - Auxiliary Fan Control Unit - Controls the actuation of the radiator fan - Hamburg Tech - Audi

Controls the actuation of the radiator fan We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2816318
Mfg#:
8D0959501D
In Stock
ON SALE! SAVE 20%
$132.99

This product was last offered at the strikethrough price on
09-04-2026

$106.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler

ES#284724 - 079117021M - Oil Cooler - Keeps your oil at an optimal temperature - Genuine Volkswagen Audi - Audi

Keeps your oil at an optimal temperature

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
284724
Mfg#:
079117021M
Ships in 1-2 days
10% off MSRP

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

$626.99

This product was last offered at the strikethrough price on
08-31-2026

$564.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#3146408 - 8E0121251AH - Radiator - Keep your engine cool with a new radiator - Nissens - Audi

Keep your engine cool with a new radiator We Price Match - Give Us A Call or Chat!
Fits vehicles with manual transmission ONLY

Brand:
Nissens - Corporate Logo
ES#:
3146408
Mfg#:
8E0121251AH
Ships in 1-2 days
$411.99

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

$280.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Charge Cooler and Expansion Tank Upgrade Kit

ES#2855732 - FMCCRADS53T - Charge Cooler and Expansion Tank Upgrade Kit - Upgrade your supercharger cooling system - Forge - Audi

Upgrade your supercharger cooling system Fits B8.5 facelift models only (From the 2013 model year)

Brand:
Forge - Corporate Logo
ES#:
2855732
Mfg#:
FMCCRADS53T
Ships in 5 Business Days
ON SALE! SAVE 10%
$1871.99

This product was last offered at the strikethrough price on
08-29-2026

$1684.67 USD

Compressor Intercooler O-Ring - Priced Each

ES#1304261 - 06E145723E - Compressor Intercooler O-Ring - Priced Each - Seals the inner ends of the intercoolers to the front of the supercharger compressor - Genuine Volkswagen Audi - Audi

Seals the inner ends of the intercoolers to the front of the supercharger compressor

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1304261
Mfg#:
06E145723E
In Stock
37% off MSRP

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

$58.99

This product was last offered at the strikethrough price on
09-06-2026

$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Schwaben Radiator/ Intercooler / Oil Cooler Fin Comb

ES#2971417 - 015326SCH01A - Schwaben Radiator/ Intercooler / Oil Cooler Fin Comb - Straighten bent radiator or intercooler fins that block air flow - Schwaben - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

Straighten bent radiator or intercooler fins that block air flow 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Schwaben - Corporate Logo
ES#:
2971417
Mfg#:
015326SCH01A
In Stock
ON SALE! SAVE 29%
$20.99

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

$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Main Radiator

ES#4659528 - 8E0121251AB - Main Radiator - Main replacement radiator - Nissens - Audi

Main replacement radiator We Price Match - Give Us A Call or Chat!

Brand:
Nissens - Corporate Logo
ES#:
4659528
Mfg#:
8E0121251AB
In Stock
Limited Qty Sale
$361.41

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

$325.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#3659356 - 06E121111AL - Thermostat - Includes sealing gasket and housing - URO - Audi Volkswagen Porsche

Includes sealing gasket and housing 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3659356
Mfg#:
06E121111AL
In Stock
ON SALE!
$50.60

This product was last offered at the strikethrough price on
07-12-2026

$49.08 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Coolant Performance System

ES#3219341 - MS100127 - APR Coolant Performance System - Drastically reduces intake air temps (IAT), minimizes heat soak, and provides increased performance! - APR - Audi

Drastically reduces intake air temps (IAT), minimizes heat soak, and provides increased performance! Call In Or Chat For Best Price!
*Pre-faclift models (up to 2012) require Fit Kit - Please see Fit Kit MS100136 or ES3219342 for a complet

Brand:
APR - Corporate Logo
ES#:
3219341
Mfg#:
MS100127
Back Ordered
11% off MSRP

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

$1799.99

This product was last offered at the strikethrough price on
09-06-2026

$1599.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#4690984 - 06M121115K - Thermostat Housing - Common point of failure for the cooling system. - Vernet - Audi

Common point of failure for the cooling system.

Brand:
Vernet - Corporate Logo
ES#:
4690984
Mfg#:
06M121115K
In Stock
$70.99

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

$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Radiator Hose

ES#4899608 - 8K0121055B - Lower Radiator Hose - Direct replacement for your worn or cracked hose - Rein - Audi

Direct replacement for your worn or cracked hose 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4899608
Mfg#:
8K0121055B
In Stock
ON SALE!
$71.99

This product was last offered at the strikethrough price on
08-31-2026

$68.39 USD
Free Shipping
on orders $49 and up

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.

Let us help you find the parts that fit your Audi

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