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Audi B5 A4 1.8T | K03 Turbocharger Replacements

If you are looking for a replacement turbo to restore the power on your 1.8T, at an affordable price, these units will do the trick. This is a direct bolt-on replacement of your worn out or damaged factory turbo. These are completely new turbochargers, non-rebuild units that will spool dependably and restore lost performance.

Be sure to order new banjo lines and crush washers to make your installation easier. It is suggested that lines are replaced to ensure proper oiling, as the old lines can lose pressure due to sludge.


Bring your Audi back to life

Fits:
Audi B5 A4 1.8T 1996-2001

K03 Turbocharger - (NO LONGER AVAILABLE)
Restore boost and get going!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with engine codes ATW & AWM
Brand: Vaico - Corporate Logo
ES#: 2664812
Mfg#: 058145703J
No longer available
K03 Turbocharger - (NO LONGER AVAILABLE)
Restore boost and get going!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with AEB engine code
Brand: Vaico - Corporate Logo
ES#: 2664809
Mfg#: 058145703L
No longer available
K03 Turbocharger With ECS Installation Kit - (NO LONGER AVAILABLE)
Restore boost and get going!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with engine codes ATW & AWM
Brand: Vaico - Corporate Logo
ES#: 2724052
Mfg#: 058145703JKT2
No longer available
K03 Turbocharger With ECS Installation Kit
Restore boost and get going!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with AEB engine code
Brand: Vaico - Corporate Logo
ES#: 2724054
Mfg#: 058145703LKT

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

Availability:
Ships on Sep 30, 2026
$550.99 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
K03 Turbocharger
Restore boost and get going!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with ATW & AWM engine codes
Brand: BorgWarner - Corporate Logo
ES#: 251724
Mfg#: 058145703J

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
$780.99 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
K03 Turbocharger
Restore boost and get going!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with AEB engine code
Brand: BorgWarner - Corporate Logo
ES#: 261652
Mfg#: 058145703LX

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
$788.49 USD
Free Shipping Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
K03 Turbocharger With ECS Installation Kit
Restore boost and get going!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with engine codes ATW & AWM
Brand: BorgWarner - Corporate Logo
ES#: 1892046
Mfg#: 058145703JKT

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
$887.99 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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

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