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Audi A4 Engine Cooling Parts

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Throttle Body Coolant Hose - Right

ES#283610 - 078121188C - Throttle Body Coolant Hose - Right - Connects the coolant pipe to the throttle body - Genuine Volkswagen Audi - Audi Volkswagen

Connects the coolant pipe to the throttle body Engine code AHA

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
283610
Mfg#:
078121188C
Ships in 9 Business Days
12% off MSRP

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

$40.99

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

$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Assembly - 92C

ES#3149393 - 06C121111E - Thermostat Assembly - 92C - Housing included - Rein - Audi

Housing included 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3149393
Mfg#:
06C121111E
Ships in 4 Business Days
$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Radiator Bushing - Priced Each

ES#450296 - 8K0121276A - Lower Radiator Bushing - Priced Each - Rubber mounts that stabilize the radiator - Genuine Volkswagen Audi - Audi

Rubber mounts that stabilize the radiator

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450296
Mfg#:
8K0121276A
In Stock
Limited Qty Sale
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Mounting Bolt - Priced Each

ES#468273 - N10471802 - Radiator Mounting Bolt - Priced Each - M5x12 - Secures the radiator to the mounting bracket - Genuine Volkswagen Audi - Audi

M5x12 - Secures the radiator to the mounting bracket

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
468273
Mfg#:
N10471802
Ships in 3 Business Days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87°C)

ES#3234734 - 050121113C - Thermostat (87C) - Prevent overheating and premature engine wear - Gates - Audi Volkswagen

Prevent overheating and premature engine wear

Brand:
Gates - Corporate Logo
ES#:
3234734
Mfg#:
050121113C
In Stock
Limited Qty Sale
$44.99

This product was last offered at the strikethrough price on
06-17-2026

$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Cooling Flange

Located at the rear of cylinder head, includes o-rings

Brand:
BBR Automotive - Corporate Logo
ES#:
4057731
Mfg#:
06H121132H
Back Ordered
$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#2800809 - 059919501A - Coolant Temperature Sensor - Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head - Meistersatz - Audi Volkswagen

Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head

Brand:
Meistersatz - Corporate Logo
ES#:
2800809
Mfg#:
059919501A
Ships in 4 Business Days
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose

ES#4055320 - 078121058AN - Oil Cooler Hose - Connects the oil cooler to the upper coolant pipe - Vaico - Audi Volkswagen

Connects the oil cooler to the upper coolant pipe We Price Match - Give Us A Call or Chat!
From the 2000 model year

Brand:
Vaico - Corporate Logo
ES#:
4055320
Mfg#:
078121058AN
Ships on Jan 8, 2027
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit

ES#2586883 - 8D0121403DUROKT - Expansion Tank Replacement Kit - Install a brand new expansion tank with a new cap and hardware - Assembled By ECS - Audi

Install a brand new expansion tank with a new cap and hardware 10X Entries Into Our F80 M3 Sweepstakes
Up to VIN 8D-W-007799, split is in the 1998 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586883
Mfg#:
8D0121403DUROKT
Back Ordered
ON SALE!
$34.99

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

$33.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

oil cooler

ES#2866456 - 078117021A - oil cooler - Common source of leaks, mounted between your oil filter and engine block - Febi - Audi Volkswagen

Common source of leaks, mounted between your oil filter and engine block We Price Match - Give Us A Call or Chat!
Up to VIN 8D-Y-022960, split is in the 2000 model year

Brand:
Febi - Corporate Logo
ES#:
2866456
Mfg#:
078117021A
Back Ordered
$33.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#3142772 - 8E0121403A - Coolant Expansion Tank - Replace your old coolant tank and stop those pesky leaks - Hudson - Audi

Replace your old coolant tank and stop those pesky leaks

Brand:
Hudson - Corporate Logo
ES#:
3142772
Mfg#:
8E0121403A
Ships in 1-2 days
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#429389 - 8D0121107C - Expansion Tank Hose - Connects the expansion tank to the hard water pipe - Genuine Volkswagen Audi - Audi Volkswagen

Connects the expansion tank to the hard water pipe

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
429389
Mfg#:
8D0121107C
Ships in 4 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.

$37.99

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

$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 2 Pin

ES#3625024 - 079919523B - Coolant Temperature Sensor - 2 Pin - Monitors coolant temperature for fan control & gauge readings - FAE - Audi Volkswagen

Monitors coolant temperature for fan control & gauge readings

Brand:
FAE - Corporate Logo
ES#:
3625024
Mfg#:
079919523B
Ships on Oct 7, 2026
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Hose - Upper radiator hose to expansion tank

ES#3623895 - 8E0121107R - Water Hose - Upper radiator hose to expansion tank - Connects the upper radiator hose to the expansion tank - URO - Audi

Connects the upper radiator hose to the expansion tank 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3623895
Mfg#:
8E0121107R
Back Ordered
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Gasket

ES#518028 - 026121041P - Water Pump Gasket - Ensure a proper seal when installing a new water pump - Elring - Audi Volkswagen

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

Brand:
Elring - Corporate Logo
ES#:
518028
Mfg#:
026121041P
Ships in 3 Business Days
$11.99

This product was last offered at the strikethrough price on
08-26-2026

$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant T Connector Kit

ES#3176255 - N90692901KT - Coolant T Connector Kit - Connects lower radiator hose to expansion tank - Includes clamps - Assembled By ECS - Audi

Connects lower radiator hose to expansion tank - Includes clamps 10X Entries Into Our F80 M3 Sweepstakes
Connects lower radiator hose to the coolant expansion tank

Brand:
Assembled By ECS - Corporate Logo
ES#:
3176255
Mfg#:
N90692901KT
Ships in 2 Business Days
ON SALE! SAVE 10%
$35.99

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

$32.31 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.

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