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Audi B5 A4 Quattro 1.8T

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Audi B5 A4 Quattro 1.8T Engine Cooling Parts

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Water Pump

ES#3149402 - 06A121012G - Water Pump - Featuring a metal impeller - Rein - Audi Volkswagen

Featuring a metal impeller 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3149402
Mfg#:
06A121012G
Back Ordered
$67.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Switch - 4 Pin

ES#1873 - 8D0959481B - Auxiliary Fan Switch - 4 Pin - Located on the lower radiator hose connection - Meyle - Audi Volkswagen

Located on the lower radiator hose connection 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
1873
Mfg#:
8D0959481B
In Stock
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Early Model Coolant Temperature Sensor

ES#12189 - 059919501 - Early Model Coolant Temperature Sensor - Updated green 4 pin sensor, replaces old blue sensors. For vehicles with square connector. - Febi - Audi Volkswagen

Updated green 4 pin sensor, replaces old blue sensors. For vehicles with square connector. We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
12189
Mfg#:
059919501
Ships in 2 Business Days
$17.99

This product was last offered at the strikethrough price on
08-13-2026

$16.99 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 7 Business Days
$66.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler

Common source of undiscoverable coolant leaks We Price Match - Give Us A Call or Chat!
From VIN 8D-X-300001, split is in the 1999 model year

Brand:
Nissens - Corporate Logo
ES#:
3988406
Mfg#:
028117021K
Ships in 2 Business Days
$66.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Hardware Kit

ES#3141664 - N0102228kt - Water Pump Hardware Kit - Complete hardware kit for replacing the water pump - Assembled By ECS - Audi

Complete hardware kit for replacing the water pump 10X Entries Into Our F80 M3 Sweepstakes
AEB & ATW engine code

Brand:
Assembled By ECS - Corporate Logo
ES#:
3141664
Mfg#:
N0102228KT
Ships in 3 Business Days
ON SALE! SAVE 21%
$83.99

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

$66.32 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Assembly - 280mm

ES#3098864 - 8D0959455 - Auxiliary Fan Assembly - 280mm - 300W with round 2 pin connector - URO - Audi Volkswagen

300W with round 2 pin connector 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Valeo style assembly, please check existing manufacturer for proper fitment

Brand:
URO - Corporate Logo
ES#:
3098864
Mfg#:
8D0959455
Back Ordered
$64.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Freeze Plug - Priced Each

ES#2865722 - 036103113A - Freeze Plug - Priced Each - Keep your engine block sealed. 36.6mm - Febi - Audi Volkswagen

Keep your engine block sealed. 36.6mm We Price Match - Give Us A Call or Chat!
Engine codes AEB & ATW

Brand:
Febi - Corporate Logo
ES#:
2865722
Mfg#:
036103113A
Ships in 2 Business Days
$7.13 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 7 Business Days
$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor With O-Ring & Clip - 4 Pin

ES#1484 - 059919501AKT - Coolant Temperature Sensor With O-Ring & Clip - 4 Pin - Updated Green sensor with square/round connector. Please check existing sensor color - URO - Audi Volkswagen

Updated <font color='green'>Green</font> sensor with square/round connector. Please check existing sensor color 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
1484
Mfg#:
059919501AKT
In Stock
$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Upper

ES#3235887 - 8D0121101K - Radiator Hose - Upper - Connects the upper radiator port to the hard water pipe - Gates - Audi Volkswagen

Connects the upper radiator port to the hard water pipe

Brand:
Gates - Corporate Logo
ES#:
3235887
Mfg#:
8D0121101K
Ships on Oct 29, 2026
$62.78 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor With O-Ring & Clip - 4 Pin

ES#2628656 - 059919501KT2 - Coolant Temperature Sensor With O-Ring & Clip - 4 Pin - Green sensor with square connector. - Genuine Volkswagen Audi - Audi

Green sensor with square connector. Up to VIN 8D-X-500000, split is in the 1999 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2628656
Mfg#:
059919501KT2
Ships in 1-2 days
$58.99

This product was last offered at the strikethrough price on
10-05-2026

$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose - Lower

ES#3463132 - 4B0121055J - Radiator Hose - Lower - Connects the lower radiator port to the water pump and expansion tank - Hudson - Audi Volkswagen

Connects the lower radiator port to the water pump and expansion tank

Brand:
Hudson - Corporate Logo
ES#:
3463132
Mfg#:
4B0121055J
Ships in 1-2 days
$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor With O-Ring & Clip - 4 Pin

ES#2649750 - 059919501AKT3 - Coolant Temperature Sensor With O-Ring & Clip - 4 Pin - Updated Green sensor with square/round connector. Please check existing sensor color - Vemo - Audi Volkswagen

Updated <font color='green'>Green</font> sensor with square/round connector. Please check existing sensor color

Brand:
Vemo - Corporate Logo
ES#:
2649750
Mfg#:
059919501AKT3
In Stock
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Freeze Plug - Priced Each

ES#466002 - N01190710 - Freeze Plug - Priced Each - Keep your engine block sealed. 14mm - Genuine Volkswagen Audi - Audi Volkswagen

Keep your engine block sealed. 14mm Engine codes AEB, ATW & AWM

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
466002
Mfg#:
N01190710
Ships in 1-2 days
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#3353262 - N90365302 - Sealing O-Ring - Priced Each - Genuine Porsche - Audi Volkswagen

Seals the coolant return pipe for AWM engine code only

Brand:
Genuine Porsche - Corporate Logo
ES#:
3353262
Mfg#:
N90365302
Ships in 5 Business Days
$3.99 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.

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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