Audi A4 B7 A5 8T A6 C6 VW Passat B6 Diesel Engine Cranshaft 03G105021C

Audi A4 B7 A5 8T A6 C6 VW Passat B6 Diesel Engine Cranshaft is a component in the Crankshafts category, designed for diesel-powered engines. This used crankshaft provides a solid foundation for professional engine repair or overhaul, allowing for the restoration of proper operation of the crank-piston system. It is an especially attractive solution for workshops and informed users looking for a technically compatible component at a reasonable price.

Specifications and technical data

• SKU: 03G105021C
• Mark: Audi
• Condition: Used
• OEM Part Number: 03G105021C
• Substitutable numbers: 03G105021C, 03G 105 021 C
• Fuel type: Diesel
• Category: Crankshafts

Purpose and role in a diesel engine

The presented crankshaft is dedicated to Diesel engines, where it is responsible for converting the reciprocating motion of the pistons into rotational motion transmitted to the drivetrain. In diesel units, which operate under higher loads and combustion pressures, a properly selected crankshaft is crucial for the durability of the entire engine and stable operation across the full RPM range.

Benefits of using an original Audi crankshaft

Using an original crankshaft from the Audi group ensures:

• maintenance of the factory geometry of the crank-piston system,
• proper fitment to the engine block and bearings,
• adequate fatigue strength under typical diesel engine loads,
• consistency with the manufacturer's factory tolerances.

As a result, the crankshaft can be safely used both for standard repairs and more advanced engine overhauls, where precision of fit and predictable long-term performance are essential.

Product characteristics and practical application

As a used item, this crankshaft is a good choice in situations where it is necessary to replace a damaged or excessively worn component while optimizing repair costs. It is suitable for:

• engine overhauls in vehicles used intensively (fleets, company cars),
• post-accident repairs where the crank system has been damaged,
• restoration projects where maintaining the original engine specification is a priority.

Selecting a crankshaft that complies with the vehicle's technical documentation helps reduce the risk of vibrations, uneven engine operation, or accelerated wear of bearings and other mating components.

Selection, identification, and purchase safety

To correctly select a crankshaft for a specific Audi or VW model, it is advisable to use the manufacturer's markings, service documentation, and vehicle data. This facilitates verification of compatibility with the specific engine version and minimizes the risk of installing an incorrect part. In case of doubt, it is useful to compare parameters with the currently installed crankshaft and consult with a mechanic specializing in diesel units.

For users who want to learn more about safely purchasing parts from the secondary market, the following guide may be helpful: Safe purchase of used car parts online – a step-by-step guide, which describes practical strategies for selecting and verifying components.

Expanding repairs in the crank system area

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, components mating with the shaft, or crank system parts, check the available parts in the Audi Crankshafts category.