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Audi B5 Engine Cooling Parts

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Auxiliary Fan Clutch

ES#262919 - 078121350A - Auxiliary Fan Clutch - Common cause of overheating issues - Meyle - Audi Volkswagen

Common cause of overheating issues 5X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
262919
Mfg#:
078121350A
Ships on Nov 23, 2026
$84.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

ES#2801195 - 8E0951253 - Multipurpose Relay - Priced Each - Replacement 4 pin relay - Meistersatz - Audi Volkswagen

Replacement 4 pin relay Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Used for fan control

Brand:
Meistersatz - Corporate Logo
ES#:
2801195
Mfg#:
8E0951253
In Stock at Vendor
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing

ES#2804447 - 06B121121L - Thermostat Housing - Located on the left side of the engine block - Bremmen Parts - Audi Volkswagen

Located on the left side of the engine block 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Bremmen Parts - Corporate Logo
ES#:
2804447
Mfg#:
06B121121L
In Stock
ON SALE! SAVE 15%
$9.99

This product was last offered at the strikethrough price on
09-16-2026

$8.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat (87°C)

ES#3149390 - 050121113C - Thermostat (87C) - Prevent overheating and premature engine wear. Includes O-ring - Rein - Audi Volkswagen

Prevent overheating and premature engine wear. Includes O-ring 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3149390
Mfg#:
050121113C
Ships in 2 Business Days
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Plug - Priced Each

ES#333289 - 357121140 - Coolant Flange Plug - Priced Each - Prevent leaks with a new plug - Genuine Volkswagen Audi - Audi Volkswagen

Prevent leaks with a new plug Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
333289
Mfg#:
357121140
In Stock
14% off MSRP

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

$13.99

This product was last offered at the strikethrough price on
10-29-2026

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose - Supply

ES#5373973 - 078121058AM - Oil Cooler Hose - Supply - Connects the oil cooler to the water pipe - Rein - Audi

Connects the oil cooler to the water pipe 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
From VIN 8D-Y-033556, split is in the 2000 model year

Brand:
Rein - Corporate Logo
ES#:
5373973
Mfg#:
078121058AM
Back Ordered
$6.99 USD
Free Shipping
on orders $49 and up

Engine Oil Cooler

ES#3190245 - 918-140 - Engine Oil Cooler - Common source of leaks, mounted between your oil filter and engine block - Dorman - Audi Volkswagen

Common source of leaks, mounted between your oil filter and engine block Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Dorman - Corporate Logo
ES#:
3190245
Mfg#:
918-140
Ships in 5 Business Days
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#5388801 - 8D0121403L - Coolant Expansion Tank - Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank - Bremmen Parts - Audi Volkswagen

Clean up your engine bay or replaced your cracked unit with a new coolant expansion tank 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
From VIN 8D-W-007800, split is in the 1998 model year

Brand:
Bremmen Parts - Corporate Logo
ES#:
5388801
Mfg#:
8D0121403L
In Stock
ON SALE! SAVE 15%
$23.99

This product was last offered at the strikethrough price on
09-16-2026

$20.39 USD
Free Shipping
on orders $49 and up

O-Ring - Priced Each

ES#6802 - N90560701 - O-Ring - Priced Each - 30x5 - Ensure a proper seal with a new o-ring - Victor Reinz - Audi

30x5 - Ensure a proper seal with a new o-ring Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Victor Reinz - Corporate Logo
ES#:
6802
Mfg#:
N90560701
In Stock
$2.03 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cast Aluminum Cylinder Head Cooling Flange

ES#4070439 - 462-121-132b5KT - Cast Aluminum Cylinder Head Cooling Flange - Located on the back of the cylinder head - iABED Industries - Audi Volkswagen

Located on the back of the cylinder head Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For vehicles with AWM engine code only

Brand:
iABED Industries - Corporate Logo
ES#:
4070439
Mfg#:
462-121-132B5KT
Back Ordered
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Radiator Mount - Priced Each

ES#1731 - 8D0121275 - Lower Radiator Mount - Priced Each - Stabilizes the radiator within the core support - Genuine Volkswagen Audi - Audi Volkswagen

Stabilizes the radiator within the core support Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1731
Mfg#:
8D0121275
Ships in 1-2 days
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Hose - Return

ES#4326735 - 058121058B - Oil Cooler Hose - Return - Connects the oil cooler to the hard water tube - Meyle - Audi Volkswagen

Connects the oil cooler to the hard water tube 5X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4326735
Mfg#:
058121058B
In Stock
$9.99

This product was last offered at the strikethrough price on
08-17-2026

$9.85 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 Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
From VIN 8D-W-007800 up to VIN 8D-X-199999, splits are in the 1998/1999 model years

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

Thermostat Replacement Kit

ES#2581864 - 050121113ckt-2 - Thermostat Replacement Kit - Maintain proper operating temperature with a new thermostat, housing and hardware - Genuine Volkswagen Audi - Audi

Maintain proper operating temperature with a new thermostat, housing and hardware Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2581864
Mfg#:
050121113CKT-2
In Stock
$83.99

This product was last offered at the strikethrough price on
10-01-2026

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hose Clamp - Priced Each

ES#263953 - N10258101 - Hose Clamp - Priced Each - Install new clamps to stay leak free. 23-35x9x.5 - Genuine Volkswagen Audi - Audi Volkswagen

Install new clamps to stay leak free. 23-35x9x.5 Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Secures both hoses to the auxiliary water pump.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
263953
Mfg#:
N10258101
In Stock
Limited Qty Sale
$6.99

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

$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Multipurpose Relay - Priced Each

ES#2828552 - 7M0951253A - Multipurpose Relay - Priced Each - Replacement 4 pin relay - URO - Audi Volkswagen Porsche

Replacement 4 pin relay 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!
Used for fan control

Brand:
URO - Corporate Logo
ES#:
2828552
Mfg#:
7M0951253A
Ships in 2 Business Days
$5.99 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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