Audi Q7 4L Garrett Turbo Charger Turbocharger 4.2 TDI Left N/S 057145721Q

The Audi Q7 4L 4.2 TDI Garrett Left Turbocharger is an original equipment turbocharger designed for the diesel engine in the 4L generation Audi Q7. A used Garrett turbocharger ensures factory fit, proper operating parameters, and stable support for the 4.2 TDI engine.

Specifications and technical data

• SKU: 057145721Q
• Mark: Audi
• Condition: Used
• OEM Part Number: 057145721Q
• Substitutable numbers: 057145721Q, 057 145 721 Q, 763493-0005, 6NW009543, 763797
• Location on the vehicle: Left
• Fuel type: Diesel
• Category: Turbos & Parts

Intended use and fitment for Audi Q7 4L 4.2 TDI

This left-side turbocharger for the Audi Q7 4L 4.2 TDI was designed as a component of the diesel engine's supercharging system. Its placement on the left side of the vehicle is crucial for dual-turbo configurations, so selecting the correct side directly impacts correct installation and subsequent engine operation.

The original Audi Group design guarantees compliance with factory design solutions, proper exhaust and air routing, and compatibility with engine components. This allows the turbocharger to work with the factory control, exhaust, and intake systems without the need for modifications.

Technical characteristics of the Garrett turbocharger

Garrett is a renowned manufacturer of turbochargers used as standard in many premium models. Using this unit in the Audi Q7 4L 4.2 TDI provides:

• stable boost throughout the entire speed range of the diesel engine,
• appropriately selected compression characteristics for the 4.2 TDI unit,
• correct cooperation with the boost pressure control system.

The turbocharging system in a diesel engine is crucial for achieving the right torque, dynamic acceleration, and combustion efficiency. Using an original equipment turbocharger allows for maintaining performance close to factory specifications, which is especially important in a heavy SUV like the Audi Q7.

Condition, verification and installation recommendations

The turbocharger offered is in used condition, meaning it has been disassembled and is intended for continued use after proper reassembly. These types of components are frequently chosen by workshops and informed users as a cost-effective alternative to new OEM components while maintaining the original design.

Before installation, standard service activities are recommended, such as:

• checking the engine lubrication system (oil pipes patency, oil quality),
• verification of the intake system for leaks and contamination,
• checking the condition of the air filter and vacuum hoses.

Correct installation and adherence to service procedures significantly extends the life of the turbocharger and reduces the risk of repeated failures in the charging system.

Benefits of using an original used turbocharger

Choosing a genuine Garrett turbocharger for your used Audi Q7 4L 4.2 TDI is a solution that combines cost control with maintaining factory specifications. The main advantages include:

• maintaining the original geometry and operating parameters of the supercharging system,
• better fit than many non-original replacements,
• the ability to quickly replace a damaged unit without having to modify the installation.

For workshops and services specializing in the Audi brand, this is a practical choice for diesel engine repairs, especially in the case of vehicles that are used intensively or have high mileage.

Other turbochargers for Audi - expansion of the supercharging system

If you are also looking for other turbochargers for vehicles of this brand, check out our turbochargers for Audi category, where you will find a wide selection of turbocharger components adapted to various models and engine versions.

How to safely buy used turbochargers online?

When choosing a used turbocharger, it's worth considering the OEM number, interchangeable numbers, and compatibility with the specific engine and body version. For users who want to streamline the parts selection process and avoid mistakes, we've prepared a practical guide. Check out the article "Safely Buying Used Car Parts Online – A Step-by-Step Guide ," which describes step-by-step how to verify component compatibility, including turbocharger components.