Volkswagen Audi Seat Skoda 1.2 TSI CJZC CJZD Engine Turbocharger 04E145721L

The Volkswagen Audi Seat Skoda 1.2 TSI CJZC CJZD Turbocharger is a used, original equipment unit for petrol engines, designed for factory turbocharging systems in the VAG group. It provides a functional solution for users looking for a proven turbocharger to repair or upgrade their 1.2 TSI engine.

Specifications and technical data

• SKU: 04E145721L
• Mark: Seat
• Condition: Used
• OEM Part Number: 04E145721L
• Substitutable numbers: 04E145721L, 04E 145 721 L
• Fuel type: Petrol
• Category: Turbos & Parts

Application and compatibility with 1.2 TSI engines

The turbocharger for the 1.2 TSI CJZC and CJZD engines is designed to precisely integrate with small-displacement petrol engines in Volkswagen, Audi, Seat, and Skoda vehicles. The turbocharger's design ensures adequate boost pressure across the entire RPM range, resulting in dynamic throttle response and stable engine performance.

This component is designed for gasoline- powered systems, maintaining the proper thermal and flow characteristics required for TSI engines. Proper matching to a specific engine family minimizes the risk of installation issues and reduces the need for additional modifications.

Construction and operating characteristics of a turbocharger

The turbocharger offered falls into the "Turbochargers and Parts" category, meaning it is a key component of the turbocharging system, responsible for compressing intake air and improving engine efficiency. The rotor and housing geometry are tailored to the specific needs of the 1.2 TSI engine, ensuring:

• stable build-up of boost pressure in the low and medium rpm range,
• smooth power delivery without sudden jumps,
• efficient use of exhaust energy while maintaining reasonable fuel consumption.

As an original VAG group component, the turbocharger retains the factory mounting points and connections, making it easy to install in place of a worn unit without the need for any system modifications.

Condition, origin and benefits of choosing a used part

The product is offered in used condition, meaning it has been dismantled from a vehicle and has been previously used. This type of solution is often chosen by informed users who seek a compromise between repair costs and maintaining original factory specifications. A used OEM turbocharger allows for:

• maintain factory engine operating parameters without interfering with the controller software,
• maintain the original fit to the exhaust and intake manifold,
• reduce the cost of repair compared to purchasing a new item.

If you are considering whether remanufacturing or buying a used part is a better choice, it is worth reading the article: Remanufactured or used original – which part to choose for repair?, which discusses in detail the advantages and limitations of both solutions.

Why choose a Seat OE turbocharger?

The turbocharger offered comes from the Seat OE line, which means it meets the vehicle manufacturer's requirements for material quality, manufacturing tolerances, and performance characteristics. In practice, this translates into:

• reliable fit to the factory engine accessories,
• maintaining the original torque characteristics,
• consistency with other elements of the intake and exhaust system.

For Seat vehicle owners, a dedicated category has been created where you can find other turbocharger components. If you're looking for other turbochargers for Seat, check out our offer: turbochargers for Seat .

Intended use and installation recommendations

The Volkswagen Audi Seat Skoda 1.2 TSI CJZC CJZD turbocharger is primarily intended as a replacement for a worn or damaged unit in 1.2 TSI petrol engines. It is recommended that installation be performed by an experienced mechanic, following the manufacturer's procedures, particularly regarding:

• checking the patency of the turbocharger lubrication and cooling system,
• verification of the tightness of the intake and exhaust systems,
• proper bleeding and first start-up after installation.

This approach allows you to fully utilize the potential of the turbocharger and reduce the risk of premature wear after replacement.