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Audi A4 Engine Cooling Parts

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ES#250957 - 8D0959501D - Auxiliary Fan Control Unit - Controls the actuation of the radiator fan - Stribel - Audi

Controls the actuation of the radiator fan

Brand:
Stribel - Corporate Logo
ES#:
250957
Mfg#:
8D0959501D
Back Ordered
$275.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2535131 - N90316802 - Sealing O-Ring - Priced Each - Seal for most clip-in cooling sensors/senders. M19.6x3.6mm - URO - Audi Volkswagen

Seal for most clip-in cooling sensors/senders. M19.6x3.6mm 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535131
Mfg#:
N90316802
In Stock
$1.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2804448 - 06B121132E - Cylinder Head Cooling Flange - Located at the rear of cylinder head, includes o-rings - Bremmen Parts - Audi

Located at the rear of cylinder head, includes o-rings 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
2804448
Mfg#:
06B121132E
In Stock
ON SALE! SAVE 15%
$17.99

This product was last offered at the strikethrough price on
09-16-2026

$15.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2795706 - 06B121132EKT4 - Cooling System Refresh Kit - Level 3 With ECS Billet Aluminum J-Plug - Includes ECS' upgraded J-plug, replace critical cooling system components & perform a proper coolant system flush - Assembled By ECS - Audi

Includes ECS' upgraded J-plug, replace critical cooling system components & perform a proper coolant system flush 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2795706
Mfg#:
06B121132EKT4
Ships in 1-3 days
ON SALE!
$276.99

This product was last offered at the strikethrough price on
06-18-2026

$274.28 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#2586303 - 06B121111K1KT - Cooling System Refresh Kit - Level 1 - Replace your thermostat, temp sensor and expansion tank with one kit! - Assembled By ECS - Audi

Replace your thermostat, temp sensor and expansion tank with one kit! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586303
Mfg#:
06B121111K1KT
Ships in 2 Business Days
ON SALE! SAVE 49%
$539.05

This product was last offered at the strikethrough price on
05-14-2026

$274.05 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#4066918 - 8K0121251H - Radiator - Fix leaks and keep your cooling system efficient - Denso - Audi

Fix leaks and keep your cooling system efficient

Brand:
Denso - Corporate Logo
ES#:
4066918
Mfg#:
8K0121251H
Ships in 7 Business Days
$280.99

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

$272.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#5386445 - 06E121018BKT1 - Water Pump / Thermostat Kit  - Includes everything you need to replace your water pump and thermostat. - Assembled By ECS - Audi

Includes everything you need to replace your water pump and thermostat. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5386445
Mfg#:
06E121018BKT1
Ships in 1 Business Day
ON SALE!
$279.00

This product was last offered at the strikethrough price on
07-15-2026

$272.61 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#261790 - N90687201 - Spring Band Clamp - Priced Each - Ensure a leak free installation. 40x12 - Genuine Volkswagen Audi - Audi Volkswagen

Ensure a leak free installation. 40x12 40x12 spring clamp used in many places on your European vehicles cooling system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
261790
Mfg#:
N90687201
Ships in 2 Business Days
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#450273 - 8K0121101J - Upper Radiator Hose - Connects the upper radiator port to the hard water tube - Genuine Volkswagen Audi - Audi

Connects the upper radiator port to the hard water tube

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450273
Mfg#:
8K0121101J
Ships in 2 Business Days
13% off MSRP

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

$156.99

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

$135.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#1876863 - 06D121111G - Thermostat Assembly - Includes sealing o-ring - Mahle-Behr - Audi

Includes sealing o-ring

Brand:
Mahle-Behr - Corporate Logo
ES#:
1876863
Mfg#:
06D121111G
Ships in 1 Business Day
$60.26

This product was last offered at the strikethrough price on
10-27-2026

$54.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#433318 - 8D1819030B - Heater Core - Stop coolant loss and cure a fogged windshield - Genuine Volkswagen Audi - Audi Volkswagen

Stop coolant loss and cure a fogged windshield

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
433318
Mfg#:
8D1819030B
Ships in 2 Business Days
13% off MSRP

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

$311.99

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

$270.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#280425 - 06D121071R - Hard Coolant Pipe - Located between the coolant flange and upper radiator hose - Genuine Volkswagen Audi - Audi

Located between the coolant flange and upper radiator hose

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280425
Mfg#:
06D121071R
Ships in 6 Business Days
13% off MSRP

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

$154.99

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

$134.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#1598006 - 8K0121109AB - Water Hose - Connects from expansion tank to water pipe - Genuine Volkswagen Audi - Audi

Connects from expansion tank to water pipe

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1598006
Mfg#:
8K0121109AB
Ships in 1 day
13% off MSRP

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

$103.99

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

$89.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5491165 - 06A919501AKT - Coolant Temperature Sensor - 2 Pin - Kit - Includes Retaining Clip & O-Ring - Assembled By ECS - Audi

Includes Retaining Clip & O-Ring 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5491165
Mfg#:
06A919501AKT
In Stock
ON SALE! SAVE 23%
$21.99

This product was last offered at the strikethrough price on
07-10-2026

$16.85 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4933050 - 8E1819373R - Heater Core Hose - Return - Connects the heater core to the hard coolant pipe - URO - Audi

Connects the heater core to the hard coolant pipe 2X Entries Into Our F80 M3 Sweepstakes

Brand:
URO - Corporate Logo
ES#:
4933050
Mfg#:
8E1819373R
In Stock
$29.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2500976 - 06E121018A - Water Pump - Includes gasket and features a metal impeller - Hepu - Audi Volkswagen

Includes gasket and features a metal impeller

Brand:
Hepu - Corporate Logo
ES#:
2500976
Mfg#:
06E121018A
Ships in 1 Business Day
$103.11

This product was last offered at the strikethrough price on
09-25-2026

$89.06 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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