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Audi A4 Engine Cooling Parts

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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

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
Ships on Nov 19, 2026
$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
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Freeze Plug (20mm) - Priced Each

ES#465995 - N0119017 - Freeze Plug (20mm) - Priced Each - Keep your engine block sealed - Genuine Volkswagen Audi - Audi

Keep your engine block sealed

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
465995
Mfg#:
N0119017
Ships in 1-2 days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#2497589 - 026121005L - Water Pump - Keep your coolant flowing to prevent overheating - Graf - Audi Volkswagen

Keep your coolant flowing to prevent overheating

Brand:
Graf - Corporate Logo
ES#:
2497589
Mfg#:
026121005L
In Stock at Vendor
$47.28

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

$43.86 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit

ES#2762251 - 06C121111EKT1 - Thermostat Replacement Kit - Maintain proper operating temperature with a new thermostat, housing and hardware - Assembled By ECS - Audi

Maintain proper operating temperature with a new thermostat, housing and hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2762251
Mfg#:
06C121111EKT1
Ships in 2 Business Days
ON SALE!
$44.12 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bolt (6x18) - Priced Each

ES#472014 - N91140701 - Bolt (6x18) - Priced Each - Used on Main return pipe that connects to the heater core hoses and the engine - Genuine Volkswagen Audi - Audi

Used on Main return pipe that connects to the heater core hoses and the engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
472014
Mfg#:
N91140701
Ships in 1-2 days
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

Featuring a metal impeller and includes the gasket

Brand:
Hepu - Corporate Logo
ES#:
4349797
Mfg#:
078121006X
In Stock
Limited Qty Sale
$133.99

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

$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Bracket

ES#3250330 - 8W0121232L - Expansion Tank Bracket - Expansion tank bracket that bolts up to the vehicle frame - Genuine Volkswagen Audi - Audi

Expansion tank bracket that bolts up to the vehicle frame

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3250330
Mfg#:
8W0121232L
Ships in 2 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.

$48.99

This product was last offered at the strikethrough price on
10-26-2026

$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

ES#514001 - 038121119B - Thermostat O-Ring - Ensure a proper seal when installing your new thermostat. 50x4 - Victor Reinz - Audi Volkswagen

Ensure a proper seal when installing your new thermostat. 50x4

Brand:
Victor Reinz - Corporate Logo
ES#:
514001
Mfg#:
038121119B
Ships in 1 Business Day
$2.03 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 From VIN 8D-X-315001, split is in the 1999 model year

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

Engine Oil Cooler Gasket

ES#2800349 - 06D117070 - Engine Oil Cooler Gasket - Connects oil cooler to oil filter housing - Ajusa - Audi Volkswagen

Connects oil cooler to oil filter housing

Brand:
Ajusa - Corporate Logo
ES#:
2800349
Mfg#:
06D117070
Ships in 3 Business Days
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#2713603 - 078121096H - Coolant Hose - Connects coolant pipe to oil cooler housing - Rein - Audi Volkswagen

Connects coolant pipe to oil cooler housing 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2713603
Mfg#:
078121096H
In Stock at Vendor
$7.61

This product was last offered at the strikethrough price on
10-22-2026

$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System O-ring - Priced Each

ES#3437196 - 4E0121666 - Cooling System O-ring - Priced Each - Ensure a proper seal on your cooling system. 38x4mm - Meistersatz - Audi

Ensure a proper seal on your cooling system. 38x4mm Seals both hoses to the coolant pump assembly

Brand:
Meistersatz - Corporate Logo
ES#:
3437196
Mfg#:
4E0121666
Ships in 1 Business Day
$5.99 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

Water Pump

ES#2812887 - 026121005F - Water Pump - Featuring a metal impeller - Hamburg Tech - Audi Volkswagen

Featuring a metal impeller We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2812887
Mfg#:
026121005F
Ships in 1 Business Day
$39.99 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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Manufacturer names and/or part numbers are used only for identification purposes.

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