Audi A3 8V Volkswagen Golf Mk7 Engine Crankshaft 1.6 2.0 TDI Diesel 04L105021D

Audi A3 8V Volkswagen Golf Mk7 Engine Crankshaft 1.6 2.0 TDI Diesel is an original component from the Crankshafts group, designed for TDI diesel engines. Using a crankshaft of this type allows for a technically correct engine repair while maintaining the factory operating characteristics of the engine.

Specifications and technical data

• SKU: 04L105021D
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L105021D
• Substitutable numbers: 04L105021D, 04L 105 021 D
• Fuel type: Diesel
• Category: Crankshafts

Purpose and technical specifications

The presented crankshaft has been designed for Diesel engines used in Audi A3 8V and Volkswagen Golf Mk7 models with 1.6 and 2.0 TDI units. The design of the crankshaft ensures proper piston guidance, stable operation of the crank-piston system, and correct torque transmission to the subsequent drive components. The original manufacturing guarantees the preservation of key geometric parameters, such as the arrangement of main and connecting rod journals, which has a direct impact on engine refinement, vibration levels, and bearing durability.

Benefits of using an original crankshaft

Using an original crankshaft in a TDI engine allows for maintaining factory fit tolerances and optimized system balancing. In practice, this translates into:

• stable operation of the engine across the full rev range,
• reduced loads on main and connecting rod bearings,
• better compatibility with the standard lubrication and oil cooling system,
• preservation of standard performance and fuel consumption parameters. For Audi and Volkswagen users, this means the ability to perform repairs in a manner close to the factory standard, without the need for design compromises.

Condition of the component and practical service application

The crankshaft is a used component, which in workshop practice often represents a reasonable compromise between repair costs and maintaining the manufacturer's original specifications. This type of part is particularly useful for:

• engine overhauls following seizure or journal damage,
• comprehensive engine rebuilding after lubrication system failure,
• professional regeneration of TDI engines in specialized service centers. Thanks to the preservation of the factory crankshaft geometry, it is possible to correctly select bearings, connecting rods, and other components of the crank-piston system in accordance with the manufacturer's service documentation.

Why choose Audi Crankshafts

In the case of TDI engines, using original components from the Crankshafts group is crucial for the durability of the entire engine. A properly selected crankshaft:

• reduces the risk of secondary damage resulting from improper balancing,
• facilitates the maintenance of correct oil pressure at critical points of the system,
• allows for predictable engine behavior after an overhaul, consistent with the manufacturer's design assumptions. This solution is particularly valued by workshops specializing in Audi and Volkswagen service, where the repeatability of the repair result and compliance with factory standards are paramount. If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as other shafts, mating parts, or crank system components, check the available parts in the Audi Crankshafts category. For drivers interested in a broader approach to economical vehicle operation and the conscious choice of original used parts, the following guide article may be helpful: Economical operation of Skoda cars – why original used parts are a beneficial solution.