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Audi A4 Engine Cooling Parts

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Coolant Expansion Tank

ES#4220544 - 8K0121403AC - Coolant Expansion Tank - Plastic reservoir for the coolant system - Febi - Audi Porsche

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

Brand:
Febi - Corporate Logo
ES#:
4220544
Mfg#:
8K0121403AC
In Stock
$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Radiator Hose

ES#3659112 - 8K0121055N - Lower Radiator Hose - Keep your cooling system hoses free from cracks - Rein - Audi

Keep your cooling system hoses free from cracks 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3659112
Mfg#:
8K0121055N
In Stock
ON SALE!
$43.99

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

$41.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly

ES#240391 - 06B121111K - Thermostat Assembly - Includes housing, gasket & sensor - Mahle - Audi

Includes housing, gasket & sensor

Brand:
Mahle - Corporate Logo
ES#:
240391
Mfg#:
06B121111K
Ships in 1 Business Day
$123.22

This product was last offered at the strikethrough price on
07-02-2026

$103.83 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler

ES#4391008 - 06E117021L - Oil Cooler - Common source of undiscoverable coolant leaks - URO - Audi Volkswagen

Common source of undiscoverable coolant leaks 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4391008
Mfg#:
06E117021L
In Stock
$82.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#2594140 - 8K0121251L - Radiator - Keep your cooling system operating properly - Nissens - Audi

Keep your cooling system operating properly We Price Match - Give Us A Call or Chat!
Manual transmission vehicles only

Brand:
Nissens - Corporate Logo
ES#:
2594140
Mfg#:
8K0121251L
Ships in 1 Business Day
$211.99

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

$205.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Cooling Flange Replacement Kit

ES#2602901 - 06B121132EKT1 - Cooling Flange Replacement Kit - Cure the common coolant leak coming from the back of your engine compartment - Assembled By ECS - Audi

Cure the common coolant leak coming from the back of your engine compartment 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2602901
Mfg#:
06B121132EKT1
In Stock
ON SALE! SAVE 31%
$64.99

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

$45.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Oil Cooler - 19 Row, with Thermostat

ES#2764437 - MM0CULT - Universal Oil Cooler - 19 Row, with Thermostat - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764437
Mfg#:
MM0CULT
In Stock at Vendor
$599.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Oil Cooler - 19 Row, with Thermostat - Black

ES#2764104 - MM0CULTBK - Universal Oil Cooler - 19 Row, with Thermostat - Black - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764104
Mfg#:
MM0CULTBK
Ships in 3 Business Days
$599.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Hose

ES#4810591 - 8K0121051C - Water Pump Hose - Connects the lower radiator hose t-fitting to the water pump - Rein - Audi

Connects the lower radiator hose t-fitting to the water pump 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4810591
Mfg#:
8K0121051C
Ships in 1 Business Day
ON SALE!
$56.99

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

$54.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Cooler Gasket

ES#3419357 - 06J117070C - Engine Oil Cooler Gasket - Connects oil cooler to oil filter housing - Elring - Audi Volkswagen

Connects oil cooler to oil filter housing 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
3419357
Mfg#:
06J117070C
In Stock
$6.92 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Control Module (600W)

ES#2795007 - 8E0959501AG - Radiator Fan Control Module (600W) - Keep your cooling system operating properly - Hamburg Tech - Audi

Keep your cooling system operating properly We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2795007
Mfg#:
8E0959501AG
In Stock
$197.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi R8 Expansion Tank Cap

ES#2149010 - 420121321 - Audi R8 Expansion Tank Cap - Keep proper pressure on your coolant, replaces any modern blue or black cooling cap - Genuine Volkswagen Audi - Audi Volkswagen Porsche

Keep proper pressure on your coolant, replaces any modern blue or black cooling cap

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2149010
Mfg#:
420121321
Ships in 1 day
10% off MSRP

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

$326.99

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

$294.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Cooler

ES#3151120 - 06J117021Q - Engine Oil Cooler - Lowers engine oil temperature - Genuine Volkswagen Audi - Audi Volkswagen

Lowers engine oil temperature

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3151120
Mfg#:
06J117021Q
Ships in 1 day
7% off MSRP

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

$420.99

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

$390.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Accessory Belt - Alternator

ES#3677911 - 06B903137E - Performance Kevlar Reinforced Accessory Belt - Alternator - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - Audi Volkswagen
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3677911
Mfg#:
06B903137E
Ships on Nov 12, 2026
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87°C)

ES#544 - 050121113C - Thermostat (87C) - Prevent overheating and premature engine wear. Includes O-ring - Mahle-Behr - Audi Volkswagen

Prevent overheating and premature engine wear. Includes O-ring

Brand:
Mahle-Behr - Corporate Logo
ES#:
544
Mfg#:
050121113C
In Stock
$24.99

This product was last offered at the strikethrough price on
08-25-2026

$24.22 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

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 10X Entries Into Our F80 M3 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

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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