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Audi A4 Engine Cooling Parts

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O-Ring - Priced Each (24x3)

ES#2602600 - N90380002 - O-Ring - Priced Each (24x3) - O-ring used in various areas on your European vehicle - Corteco - Audi

O-ring used in various areas on your European vehicle 24x3 O-ring that is seated between the hard coolant pipe and thermostat housing

Brand:
Corteco - Corporate Logo
ES#:
2602600
Mfg#:
N90380002
Ships in 1 Business Day
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Adapter Gasket

ES#2702530 - 028115441C - Oil Filter Adapter Gasket - Seals the oil filter adapter to the engine block - Elwis - Audi Volkswagen

Seals the oil filter adapter to the engine block Engine codes AEB & ATW

Brand:
Elwis - Corporate Logo
ES#:
2702530
Mfg#:
028115441C
Ships in 1 Business Day
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump O-Ring

ES#4144993 - 06A121119 - Water Pump O-Ring - Ensure a proper seal when installing a new water pump. 53x4mm - Rein - Audi Volkswagen

Ensure a proper seal when installing a new water pump. 53x4mm 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4144993
Mfg#:
06A121119
Back Ordered
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Drain Plug

Used for quick removal of coolant

Brand:
JL Germany
ES#:
4044479
Mfg#:
8D0121100
Back Ordered
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Hose Retaining Clip - Priced Each

ES#4941347 - 1J0121142 - Cooling Hose Retaining Clip - Priced Each - Secures the radiator hose flange in place. 32mm - Bremmen Parts - Audi Volkswagen

Secures the radiator hose flange in place. 32mm 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4941347
Mfg#:
1J0121142
Back Ordered
ON SALE! SAVE 13%
$0.86 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Adapter Gasket

Seals the oil filter adapter to the engine block 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Engine codes AEB & ATW

Brand:
Elring - Corporate Logo
ES#:
4034836
Mfg#:
028115441C
Ships in 1 Business Day
$3.99

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

$2.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Plug - Priced Each

ES#2815649 - 357121140 - Coolant Flange Plug - Priced Each - Clip and o-ring sold separately - Hamburg Tech - Audi Volkswagen

Clip and o-ring sold separately We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2815649
Mfg#:
357121140
Ships in 1 Business Day
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Cooling Hose Kit - Feed Line

ES#5388366 - 06d121497akt1KT - Turbo Cooling Hose Kit - Feed Line - Connects turbocharger to the connection flange - includes banjo bolts & washers - Assembled By ECS - Audi

Connects turbocharger to the connection flange - includes banjo bolts & washers 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5388366
Mfg#:
06D121497AKT1KT
In Stock
ON SALE!
$176.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump / Thermostat Kit

ES#5386464 - 06E121018BKT2 - Water Pump / Thermostat Kit - Includes everything you need to replace your water pump and thermostat. This kit does not include the water pump pulley. - Assembled By ECS - Audi

Includes everything you need to replace your water pump and thermostat. This kit does not include the water pump pulley. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5386464
Mfg#:
06E121018BKT2
In Stock
$209.99

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

$203.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#3648512 - 06D121111GKT5 - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! - Assembled By ECS - Audi

Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3648512
Mfg#:
06D121111GKT5
In Stock
ON SALE!
$304.99

This product was last offered at the strikethrough price on
08-07-2026

$301.96 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit

ES#2762584 - 06E121111GKT1 - Cooling System Refresh Kit - Replace your thermostat and temp sensor with one kit! - Assembled By ECS - Audi

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

Brand:
Assembled By ECS - Corporate Logo
ES#:
2762584
Mfg#:
06E121111GKT1
In Stock
ON SALE!
$140.30

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

$138.50 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Turbo Cooling Hose - Return Line

ES#2765609 - 06D121492J - Turbo Cooling Hose - Return Line - Connects the turbocharger to the hard water pipe - Bremmen Parts - Audi

Connects the turbocharger to the hard water pipe 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
2765609
Mfg#:
06D121492J
In Stock
ON SALE!
$53.99

This product was last offered at the strikethrough price on
10-04-2026

$51.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 1

ES#2593411 - 06H121026BAKT1 - Cooling System Refresh Kit - Level 1 - Service your critical cooling system components with one kit! - Genuine Volkswagen Audi - Audi

Service your critical cooling system components with one kit!

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2593411
Mfg#:
06H121026BAKT1
In Stock
$639.99

This product was last offered at the strikethrough price on
09-02-2026

$633.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
Scratch and Dent Item

Genuine Volkswagen Audi Thermostat *Scratch And Dent*

ES#5491584 - 06L121111N - Genuine Volkswagen Audi Thermostat *Scratch And Dent* - ***Please see photos and description prior to ordering, all sales final.*** - Scratch & Dent - Audi Volkswagen

***Please see photos and description prior to ordering, all sales final.*** ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product!

Brand:
Scratch & Dent - Corporate Logo
ES#:
5491584
Mfg#:
06L121111N
In Stock
ON SALE! SAVE 14%
$409.99

This product was last offered at the strikethrough price on
10-03-2026

$353.99 USD
Free Shipping
on orders $49 and up

Cooling System Refresh Kit - Level 2

ES#2608134 - 030121121BKT2 - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! - Assembled By ECS - Audi

Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! 10X Entries Into Our F80 M3 Sweepstakes
Engine code AEB from VIN 8D-W-007800 up to VIN 8D-X-500000, splits are in the 1998-1999 model years

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608134
Mfg#:
030121121BKT2
Ships in 1 Business Day
ON SALE!
$155.99

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

$153.42 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#2608133 - 06B121121LKT - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! - Assembled By ECS - Audi

Replace your thermostat, temp sensors, and expansion tank after performing a proper coolant system flush! 10X Entries Into Our F80 M3 Sweepstakes
Engine code AWM from VIN 8D-X-500001, split is in the 1999 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608133
Mfg#:
06B121121LKT
Ships in 1 Business Day
ON SALE!
$160.99

This product was last offered at the strikethrough price on
10-29-2026

$160.43 USD
Free Shipping
This product is lifetime replacement eligible Partial 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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