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Audi S4 Engine Cooling Parts

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Coolant Temperature Sensor - 4 Pin

ES#2894468 - 034919369C - Coolant Temperature Sensor - 4 Pin - Ensure proper readings of your coolant temp - Vemo - Audi

Ensure proper readings of your coolant temp

Brand:
Vemo - Corporate Logo
ES#:
2894468
Mfg#:
034919369C
Ships in 1 Business Day
$45.41 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler

ES#2813125 - 078117021A - Oil Cooler - Common source of leaks, mounted between your oil filter and engine block - Hamburg Tech - 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:
Hamburg Tech - Corporate Logo
ES#:
2813125
Mfg#:
078117021A
Ships in 1 Business Day
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spal 185 Degree Thermo-Switch

Replacement thermo-switch for Spal electric fan conversion kits.

Brand:
Spal - Corporate Logo
ES#:
4753440
Mfg#:
SPL185TS
Back Ordered
Auto Notify
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor With O-Ring - 2 Pin

ES#2485 - 025906041AKT - Coolant Temperature Sensor With O-Ring - 2 Pin - Blue sensor used by the ECU to control engine fueling - Assembled By ECS - Audi Volkswagen

Blue sensor used by the ECU to control engine fueling 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2485
Mfg#:
025906041AKT
In Stock at Vendor
ON SALE! SAVE 14%
$12.99

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

$11.17 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - Priced Each

ES#3213277 - N10832501 - Hex Bolt - Priced Each - Hex bolt to secure pulley to water pump, four required. M6x10 - Genuine Volkswagen Audi - Audi

Hex bolt to secure pulley to water pump, four required. M6x10

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3213277
Mfg#:
N10832501
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe O-Ring - Priced Each

ES#2803463 - N90765301 - Coolant Pipe O-Ring - Priced Each - Provides seal from metal to plastic cooling line end fitting. 32X4 - Rein - Audi Volkswagen

Provides seal from metal to plastic cooling line end fitting. 32X4 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2803463
Mfg#:
N90765301
In Stock
ON SALE! SAVE 27%
$3.99

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

$2.90 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Switch Gasket

ES#9109 - N0438083 - Radiator Fan Switch Gasket - Install new hardware with your new parts. 22x29x1.50 - Victor Reinz - Audi Volkswagen

Install new hardware with your new parts. 22x29x1.50

Brand:
Victor Reinz - Corporate Logo
ES#:
9109
Mfg#:
N0438083
In Stock
$2.03 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Wrench

ES#2210254 - VAG1590 - Water Pump Wrench - Used for removing 2-piece pulley on V-belt systems - Genuine Volkswagen Audi - Audi Volkswagen

Used for removing 2-piece pulley on V-belt systems

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2210254
Mfg#:
VAG1590
In Stock
ON SALE! SAVE 13%
$47.99

This product was last offered at the strikethrough price on
08-24-2026

$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (92 deg. C)

ES#2894962 - 078121113G - Thermostat (92 deg. C) - Includes sealing O-Ring - Vemo - Audi Volkswagen

Includes sealing O-Ring

Brand:
Vemo - Corporate Logo
ES#:
2894962
Mfg#:
078121113G
Ships in 1 Business Day
$18.99

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

$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 2 Pin

Monitors coolant temperature for fan control & gauge readings

Brand:
Walker - Corporate Logo
ES#:
4745320
Mfg#:
079919523J
Ships in 1 Business Day
$46.99

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

$40.99 USD
Free Shipping
on orders $49 and up

Heater Core

ES#4158432 - 443819030 - Heater Core - A replacement for clogged or broken cores. - Meyle - Audi

A replacement for clogged or broken cores. 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4158432
Mfg#:
443819030
Ships on Sep 23, 2026
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe - Return

Secondary return pipe that connects to the supply pipe and the oil cooler hoses 2X Entries Into Our F80 M3 Sweepstakes
From the 2013 model year

Brand:
Rein - Corporate Logo
ES#:
5470761
Mfg#:
06E121044AE
Back Ordered
ON SALE!
$42.99

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

$40.70 USD

Thermostat - 92�C

Includes sealing O-Ring

Brand:
Gates - Corporate Logo
ES#:
3234892
Mfg#:
078121113G
Ships on Sep 25, 2026
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Cap

ES#4863595 - 4M0121321Q - Coolant Expansion Tank Cap - Keep proper pressure in your coolant system - Vaico - Audi

Keep proper pressure in your coolant system We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4863595
Mfg#:
4M0121321Q
Special Order: No Guaranteed ETA
$39.99 USD
Free Shipping
on orders $49 and up

Thermostat Gasket

ES#4220540 - 06E121119B - Thermostat Gasket - Ensure a proper seal when installing your new thermostat - Victor Reinz - Audi

Ensure a proper seal when installing your new thermostat

Brand:
Victor Reinz - Corporate Logo
ES#:
4220540
Mfg#:
06E121119B
In Stock
$8.99

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

$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spring Band Clamp - Priced Each

ES#366522 - 4B0422379A - Spring Band Clamp - Priced Each - Keep lines and hoses secure and leak free. 25x12 - Genuine Volkswagen Audi - Audi

Keep lines and hoses secure and leak free. 25x12

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
366522
Mfg#:
4B0422379A
Ships in 1-2 days
$7.99 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

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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