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Audi B5 A4 Quattro V6 30v

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Audi B5 A4 Quattro V6 30v Engine Cooling Temperature Sensors

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Coolant Temperature Sensor

ES#2972929 - 059919501AKT2 - Coolant Temperature Sensor - Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head - Hamburg Tech - Audi Volkswagen

Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2972929
Mfg#:
059919501AKT2
Ships in 1 Business Day
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Switch (91-102°C) - 3 Pin

ES#1694 - 191959481C - Auxiliary Fan Switch (91-102C) - 3 Pin - Located on the lower side of the radiator - Wahler - Audi Volkswagen

Located on the lower side of the radiator

Brand:
Wahler - Corporate Logo
ES#:
1694
Mfg#:
191959481C
Ships on Aug 24, 2026
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sensor Retaining Clip - Priced Each

ES#1906430 - 032121142 - Sensor Retaining Clip - Priced Each - Secures the coolant temperature sensor in place. - MTC - Audi Volkswagen

Secures the coolant temperature sensor in place.

Brand:
MTC - Corporate Logo
ES#:
1906430
Mfg#:
032121142
In Stock
$2.03 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor - 2 Pin

ES#2627557 - 025906041A - Coolant Temperature Sensor - 2 Pin - Blue sensor used by the ECU to control engine fueling - Rein - Audi Volkswagen

Blue sensor used by the ECU to control engine fueling 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2627557
Mfg#:
025906041A
In Stock at Vendor
$9.36 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 For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
1484
Mfg#:
059919501AKT
In Stock
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#4057465 - N90316802 - Sealing O-Ring - Priced Each - Seal for most clip-in cooling sensors/senders. M19.6x3.6mm - Victor Reinz - Audi Volkswagen

Seal for most clip-in cooling sensors/senders. M19.6x3.6mm

Brand:
Victor Reinz - Corporate Logo
ES#:
4057465
Mfg#:
N90316802
Ships in 2 Business Days
$3.99

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

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fan Switch - 2-Pin (84°C-95°C)

ES#296593 - 191959481 - Fan Switch - 2-Pin (84C-95C) - Mounts on radiator to determine coolant temperature for fan operation - Genuine Volkswagen Audi - Audi Volkswagen

Mounts on radiator to determine coolant temperature for fan operation

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
296593
Mfg#:
191959481
Ships in 8 Business Days
7% off MSRP

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

$73.99

This product was last offered at the strikethrough price on
07-19-2026

$68.99 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 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
1873
Mfg#:
8D0959481B
Ships on Oct 29, 2026
Auto Notify
$16.99 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#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 2 Business Days
$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sender, Blue, 4-Pin

ES#523211 - 078919501B - Coolant Temperature Sender, Blue, 4-Pin - Blue sensor with square connector. Please check existing sensor color - Vemo - Audi Volkswagen

Blue sensor with square connector. Please check existing sensor color Up to VIN 8D-X-500000, split is in the 1999 model year

Brand:
Vemo - Corporate Logo
ES#:
523211
Mfg#:
078919501B
Ships on Nov 11, 2026
$18.99 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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
333289
Mfg#:
357121140
In Stock
ON SALE!
$11.99

This product was last offered at the strikethrough price on
06-25-2026

$11.11 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Temperature Sensor

ES#3624900 - 059919501A - Coolant Temperature Sensor - Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head - FAE - Audi Volkswagen

Revised green 4 pin sensor, located in the cooling flange located on the side of the cylinder head

Brand:
FAE - Corporate Logo
ES#:
3624900
Mfg#:
059919501A
Ships on Aug 6, 2026
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fan Switch - 2-Pin (84°C-95°C)

ES#3537594 - 191959481 - Fan Switch - 2-Pin (84C-95C) - Mounts on radiator to determine coolant temperature for fan operation - URO - Audi Volkswagen

Mounts on radiator to determine coolant temperature for fan operation 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3537594
Mfg#:
191959481
Ships in 1 Business Day
$10.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Early Model Coolant Temperature Sensor

ES#2710181 - 059919501 - Early Model Coolant Temperature Sensor - Updated green 4 pin sensor, replaces old blue sensors. For vehicles with square connector. - URO - Audi Volkswagen

Updated green 4 pin sensor, replaces old blue sensors. For vehicles with square connector. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2710181
Mfg#:
059919501
Ships in 1 Business Day
$9.99 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#2832 - 078919501BKT - Coolant Temperature Sensor With O-Ring & Clip - 4 Pin - Blue sensor with square connector. Please check existing sensor color - Vemo - Audi Volkswagen

<font color='blue'>Blue</font> sensor with square connector. Please check existing sensor color Up to VIN 8D-X-500000, split is in the 1999 model year

Brand:
Vemo - Corporate Logo
ES#:
2832
Mfg#:
078919501BKT
Ships on Nov 11, 2026
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Switch (75-82°C) - 3 Pin

ES#5396123 - 1009597517 - Auxiliary Fan Switch (75-82C) - 3 Pin - Located on the lower side of the radiator - Meyle - Audi Volkswagen

Located on the lower side of the radiator 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Meyle - Corporate Logo
ES#:
5396123
Mfg#:
1009597517
Ships in 6 Business Days
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Cooling Temperature Sensors

A faulty temperature sensor can be a source of overheating problems and cooling leaks. Replace your temperature sensor with an OEM temperature sensor or aftermarket temperature sensor from our trusted list of manufacturers to bring your cooling system back up to par.

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