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Nissens Turbocharger 93021 – Audi A4, Volkswagen Passat 1.8L 1997-2006

Nissens Turbocharger 93021 – Audi A4, Volkswagen Passat 1.8L 1997-2006

NISSENS
Availability:
Out of stock
SKU 93021
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$339.95 - $339.95
$339.95
$339.95 - $339.95
$339.95
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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The Nissens Turbocharger 93021 is a direct replacement turbocharger for Audi A4 and Volkswagen Passat models with 1.8L engines from 1997 to 2006. It delivers improved acceleration and increased horsepower, designed to withstand high temperatures and provide consistent boost pressure for optimal engine performance. This turbocharger is compatible with OEM part numbers 058145703A, 058145703B, 058145703C, and 058145703D.

Key Features & Benefits

  • Performance Gain: Increases horsepower and improves acceleration for a more responsive drive.
  • OEM Compatible: Direct replacement for part numbers 058145703A, 058145703B, 058145703C, 058145703D.
  • Heat Resistant: Designed to handle high temperatures for durability and consistent boost.
  • Easy Installation: Direct bolt-on fit for compatible Audi and Volkswagen models.

Vehicle Fitment

Make Model Years Engine
Audi A4 1997–2001 1.8L4
Audi A4 2002–2006 1.8L4
Audi A4 Quattro 1997–2001 1.8L4
Audi A4 Quattro 2002–2005 1.8L4
Volkswagen Passat 1998–2005 1.8L4

Technical Specifications

Part Number 93021
Cross References 058145703A, 058145703B, 058145703C, 058145703D

Installation Notes

Direct replacement for compatible Audi and Volkswagen 1.8L models; professional installation recommended.

About NISSENS

Nissens is a trusted manufacturer of automotive cooling and turbocharger systems, known for high-quality OE replacement parts.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 5 applications
B5 A4
Make Model Engine Years
Audi A4 1.8L4 1997–2001
B5 A4 Quattro
Make Model Engine Years
Audi A4 Quattro 1.8L4 1997–2001
B5 Passat
Make Model Engine Years
Volkswagen Passat 1.8L4 1998–2005
B6 A4
Make Model Engine Years
Audi A4 1.8L4 2002–2006
B6 A4 Quattro
Make Model Engine Years
Audi A4 Quattro 1.8L4 2002–2005
Fits 5 vehicle applications Check vehicle fitment before ordering View fitment

About this Turbocharger

The NISSENS 93021 turbocharger uses exhaust energy to spin a turbine that drives a compressor, forcing more air into the engine. More air means more power from a smaller engine, and turbocharger health depends heavily on clean oil.

Frequently asked questions

What are the signs of a failing turbocharger?

Loss of boost and power, a loud whine or siren sound, blue or grey smoke, oil in the intake pipes or intercooler, or boost-related fault codes.

What causes a turbocharger to fail?

Most failures come from oil problems, such as dirty oil, a blocked oil feed or late oil changes, and from foreign objects entering the turbine or compressor. Find and fix the cause before fitting the new turbo.

What should I replace along with the turbo?

Replace the oil feed and return lines or their seals, all gaskets and single-use fasteners, and change the oil and filter. Clean or replace the intercooler and pipes if the old turbo shed oil or debris into them.

Can I install a turbocharger myself?

It is an involved job with tight access and important oil-priming steps. Prime the turbo with oil before first start and let the engine idle to build oil pressure. An experienced technician is recommended.

How do I make sure this turbocharger fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

Euromotiv is an independent retailer of OEM, Genuine, and aftermarket automotive parts. We are not affiliated with, endorsed by, or authorized by Audi AG, Volkswagen AG, BMW AG, Mercedes-Benz Group AG, Dr. Ing. h.c. F. Porsche AG, MINI, or any other vehicle manufacturer. All trademarks, logos, and brand names are the property of their respective owners and are used solely for identification and compatibility purposes.