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Thermostat Service Kits | Audi B6 A4 1.8T

It is important to maintain the proper engine operating temperature to avoid engine overheating and costly damage. These thermostat replacement kits gather everything needed to service your thermostat.


Keep your cool.

Fitment:
Audi B6 A4 1.8T 2002-2005

Thermostat Replacement Kit With ECS Billet Aluminum J-Plug
Includes ECS' upgraded J-Plug, a new thermostat, o-ring, and hardware
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Assembled By ECS - Corporate Logo
ES#: 2777024
Mfg#: 06B121111KKT3

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
In Stock
On SALE Save 25%
$159.99

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

$120.70 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
Thermostat Replacement Kit
Includes new thermostat, j-plug, o-ring, and hardware
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Assembled By ECS - Corporate Logo
ES#: 2574945
Mfg#: 06B121111KKT

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
In Stock
On SALE Save 19%
$116.99

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

$94.55 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
Thermostat Replacement Kit - (NO LONGER AVAILABLE)
Includes genuine Audi thermostat, J-plug, O-ring, and all necessary hardware.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand: Genuine Volkswagen Audi - Corporate Logo
ES#: 2587731
Mfg#: 06B121111KKT1
No longer available
Thermostat Assembly (06B121111K)
Includes housing, gasket & sensor
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Brand: Hamburg Tech - Corporate Logo
ES#: 2813041
Mfg#: 06B121111K

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
Ships in 1 Business Day
$69.99 USD
Free Shipping Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
Thermostat Assembly - (NO LONGER AVAILABLE)
Includes housing, gasket & sensor
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand: Genuine Volkswagen Audi - Corporate Logo
ES#: 280017
Mfg#: 06B121111K
No longer available

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

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