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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Engine Cooling Parts

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Thermostat Housing O-Ring

ES#4690986 - 06M121688 - Thermostat Housing O-Ring - Seal for the thermostat housing - Elring - Audi

Seal for the thermostat housing 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
4690986
Mfg#:
06M121688
In Stock
$12.99 USD
Free Shipping
on orders $49 and up

Coolant Overflow Hose / Breather Line

ES#3441469 - 8W0121081DS - Coolant Overflow Hose / Breather Line - Restore cooling system integrity and prevent pressure loss or coolant leaks with this direct-replacement genuine OEM coolant breather hose. - Genuine Volkswagen Audi - Audi

Restore cooling system integrity and prevent pressure loss or coolant leaks with this direct-replacement genuine OEM coolant breather hose.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3441469
Mfg#:
8W0121081DS
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.

$86.99

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

$75.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Titan 4-Piece Air Blow Gun Set

ES#4352819 - TIT19391 - Titan 4-Piece Air Blow Gun Set - Seals and blows out clogged lines/pipes - Titan - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Seals and blows out clogged lines/pipes

Brand:
Titan - Corporate Logo
ES#:
4352819
Mfg#:
TIT19391
Ships in 6 Business Days
$66.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Coupling

ES#3496912 - 8W0122293DL - Radiator Coupling - Coupling that connects the expansion tank breather line to the upper radiator connection - Genuine Volkswagen Audi - Audi

Coupling that connects the expansion tank breather line to the upper radiator connection

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3496912
Mfg#:
8W0122293DL
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.

$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

Upper Coolant Radiator House

ES#3441471 - 8W0122101BD - Upper Coolant Radiator House - Hose that connects to the upper flange on the driver side of the car - Genuine Volkswagen Audi - Audi

Hose that connects to the upper flange on the driver side of the car

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3441471
Mfg#:
8W0122101BD
In Stock
Limited Qty Sale
$70.99

This product was last offered at the strikethrough price on
06-15-2026

$63.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hose Clamp Pliers Set

ES#2949329 - SGT19780 - Hose Clamp Pliers Set - Ideal tool for less fluid loss while doing any automotive work - S&G Tool Aid - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Ideal tool for less fluid loss while doing any automotive work

Brand:
S&G Tool Aid - Corporate Logo
ES#:
2949329
Mfg#:
SGT19780
Ships in 6 Business Days
$62.99 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

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
Special Order: No Guaranteed ETA
$47.99 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
$44.99 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
$41.99

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

$40.99 USD
Free Shipping
on orders $49 and up

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

G13 Coolant - 1.5 Liter

ES#2808528 - G013A8JM1 - G13 Coolant - 1.5 Liter - Lilac OE specification lifetime coolant - ROWE - Audi Volkswagen

Lilac OE specification lifetime coolant

Brand:
ROWE - Corporate Logo
ES#:
2808528
Mfg#:
G013A8JM1
Ships in 8 Business Days
$17.99 USD
Free Shipping

16" Fan shroud gasket

ES#4147340 - 30130074 - 16" Fan shroud gasket - Provides .25" stand off from radiator - Spal - Audi BMW MINI

Provides .25" stand off from radiator

Brand:
Spal - Corporate Logo
ES#:
4147340
Mfg#:
30130074
In Stock at Vendor
$17.99 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 Nov 25, 2026
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-ring - priced each

ES#472679 - WHT002287B - O-ring - priced each - Used to seal the coolant temperature sensor - Genuine Volkswagen Audi - Audi Volkswagen

Used to seal the coolant temperature sensor

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
472679
Mfg#:
WHT002287B
Ships in 1-3 days
11% off MSRP

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

$2.23

This product was last offered at the strikethrough price on
11-02-2026

$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sandwich Plate Fitting - priced each

ES#2764124 - MMSPF10ANBK - Sandwich Plate Fitting - priced each - M20 X 1.5 /10AN - Mishimoto - Audi BMW Volkswagen MINI

M20 X 1.5 /10AN

Brand:
Mishimoto - Corporate Logo
ES#:
2764124
Mfg#:
MMSPF10ANBK
In Stock at Vendor
$13.99 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.

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Manufacturer names and/or part numbers are used only for identification purposes.

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