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Audi A4 Engine Cooling Parts

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Expansion Tank Replacement Kit

ES#2580983 - 8D0121403LKT1 - Expansion Tank Replacement Kit - Install a brand new expansion tank with a new cap and hardware - Assembled By ECS - Audi Volkswagen

Install a brand new expansion tank with a new cap and hardware 10X Entries For Our 25th Anniversary Sweepstakes!
From VIN 8D-W-007800, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2580983
Mfg#:
8D0121403LKT1
Ships in 1-2 days
ON SALE!
$49.99

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

$47.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit

ES#2778104 - 078121113fkt1 - Cooling System Refresh Kit - Service your critical cooling system components with this complete kit. - Assembled By ECS - Audi

Service your critical cooling system components with this complete kit. 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8D-W-007799, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2778104
Mfg#:
078121113FKT1
Back Ordered
ON SALE!
$97.99

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

$95.49 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Meyle Anti-Freeze / Coolant Concentrate - 1.5 Liter (G13)

ES#5443792 - 0140169600 - Meyle Anti-Freeze / Coolant Concentrate - 1.5 Liter (G13) - Lilac OE VW/Audi specification concentrate lifetime coolant. Meets MB 325.5 Specification. - Meyle - Audi Volkswagen Mercedes Benz

Lilac OE VW/Audi specification concentrate lifetime coolant. Meets MB 325.5 Specification. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Meyle - Corporate Logo
ES#:
5443792
Mfg#:
0140169600
In Stock
$18.99 USD
Free Shipping
on orders $49 and up

Hex Nut - Priced Each

ES#470213 - N90570802 - Hex Nut - Priced Each - Install new hardware with your new parts. M6 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. M6 Used in securing the coolant expansion tank

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
470213
Mfg#:
N90570802
In Stock
19% off MSRP

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

$3.55

This product was last offered at the strikethrough price on
07-31-2026

$2.86 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal 12" Electric Fan - Black

ES#2765250 - MMFAN12 - Universal 12" Electric Fan - Black - 934 CFM - 5.7 amps at 12.3 volts - Mishimoto - Audi BMW Volkswagen MINI

934 CFM - 5.7 amps at 12.3 volts

Brand:
Mishimoto - Corporate Logo
ES#:
2765250
Mfg#:
MMFAN12
In Stock at Vendor
$93.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hard Coolant Pipe

ES#280424 - 06D121065L - Hard Coolant Pipe - Located between main coolant flange hard pipe and thermostat housing - Genuine Volkswagen Audi - Audi

Located between main coolant flange hard pipe and thermostat housing

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280424
Mfg#:
06D121065L
Ships in 3 Business Days
8% off MSRP

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

$101.99

This product was last offered at the strikethrough price on
07-31-2026

$93.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#3235888 - 8D0121101M - Radiator Hose - Upper - Runs from radiator to reservoir and water pipe - Gates - Audi Volkswagen

Runs from radiator to reservoir and water pipe Fits from VIN 8D-T-236 145 - Split is in the 1996 model year

Brand:
Gates - Corporate Logo
ES#:
3235888
Mfg#:
8D0121101M
Ships on Aug 20, 2026
$93.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Replacement Kit - Stage 1

ES#2718910 - 028117021LKT1 - Oil Cooler Replacement Kit - Stage 1 - Everything you need to replace your leaking oil cooler - Assembled By ECS - Audi

Everything you need to replace your leaking oil cooler 10X Entries For Our 25th Anniversary Sweepstakes!
Engine code AWM from VIN 8D-X-300001, split is in the 1999 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2718910
Mfg#:
028117021LKT1
In Stock
ON SALE! SAVE 13%
$107.99

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

$93.66 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#2581800 - 8d0959481bkt-2 - Cooling System Refresh Kit - Level 1 - Replace your thermostat and temp sensors with one kit! - Assembled By ECS - Audi

Replace your thermostat and temp sensors with one kit! 10X Entries For Our 25th Anniversary Sweepstakes!
Engine codes AEB & ATW from VIN 8D-X-500001, split is in the 1999 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2581800
Mfg#:
8D0959481BKT-2
In Stock
ON SALE!
$99.99

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

$92.15 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#2581805 - 8d0959481bkt-3 - Cooling System Refresh Kit - Level 1 - Replace your thermostat and temp sensors with one kit! - Assembled By ECS - Audi

Replace your thermostat and temp sensors with one kit! 10X Entries For Our 25th Anniversary Sweepstakes!
Engine code AWM from VIN 8D-X-500001, split is in the 1999 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2581805
Mfg#:
8D0959481BKT-3
In Stock
ON SALE!
$99.99

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

$92.11 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Heater Core

ES#3448101 - 8D1819030B - Heater Core - Stop coolant loss and cure a fogged windshield - Behr - Audi Volkswagen

Stop coolant loss and cure a fogged windshield

Brand:
Behr - Corporate Logo
ES#:
3448101
Mfg#:
8D1819030B
Special Order: No Guaranteed ETA
$91.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler

ES#4335424 - 06E117021G - Oil Cooler - Common source of undiscoverable coolant leaks - OE Aftermarket - Audi

Common source of undiscoverable coolant leaks

Brand:
OE Aftermarket - Corporate Logo
ES#:
4335424
Mfg#:
06E117021G
Ships on Aug 18, 2026
$90.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body Coolant Hose - Right

ES#4818504 - 078121188A - Throttle Body Coolant Hose - Right - Connects the coolant pipe to the throttle body - Bremmen Parts - Audi Volkswagen

Connects the coolant pipe to the throttle body 10X Entries For Our 25th Anniversary Sweepstakes!

Engine code ATQ

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818504
Mfg#:
078121188A
In Stock
ON SALE! SAVE 28%
$17.99

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

$12.99 USD
Free Shipping
on orders $49 and up

Heater Core Hose - Return

ES#4818195 - 8D0819373N - Heater Core Hose - Return - Connects the heater core to the hard water pipe - URO - Audi Volkswagen

Connects the heater core to the hard water pipe 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
From VIN 8D-V-143893, split is in the 1997 model year

Brand:
URO - Corporate Logo
ES#:
4818195
Mfg#:
8D0819373N
Ships in 1 Business Day
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 1

ES#2608151 - 06D121111GKT3 - Cooling System Refresh Kit - Level 1 - Replace your thermostat and temp sensors with one kit! - Assembled By ECS - Audi

Replace your thermostat and temp sensors with one kit! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608151
Mfg#:
06D121111GKT3
In Stock
ON SALE! SAVE 19%
$111.99

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

$90.68 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Coolant Expansion Tank - With Cap

ES#3189300 - 603-703 - Coolant Expansion Tank - With Cap - Includes integrated coolant level sensor - Dorman - Audi Volkswagen

Includes integrated coolant level sensor

Brand:
Dorman - Corporate Logo
ES#:
3189300
Mfg#:
603-703
Ships in 4 Business Days
$44.99 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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