Crankshaft 03G105021C

Description

Crankshaft by VAG, catalog number 03G105021C. Confirmed catalog fitment: Audi A6 C6 4F2 (2004–2011), Audi A6 C6 4F5 (2004–2011), Volkswagen PASSAT B6 3C2 (2005–2011), Volkswagen PASSAT B6 3C5 (2005–2011). For an accurate match, compare the number and identification with the removed part and confirm the vehicle specification by VIN. The fitment list is a reference and does not replace a vehicle-specific compatibility check.

ENGINE CRANKSHAFT

The engine crankshaft is a central component of the crankshaft assembly, converting the reciprocating motion of the pistons into rotational motion. Its condition directly affects engine balance, vibration levels, and overall durability.

Manufactured from high-strength steel or cast iron, the crankshaft features main journals, connecting rod journals, counterweights, and internal oil passages. It operates together with connecting rods, pistons, bearings, flywheel, and the lubrication system.

Common wear or damage symptoms include low oil pressure, knocking noise, excessive vibration, journal scoring, or structural deformation. Severe damage may result in engine seizure.

Our catalog includes crankshafts for petrol and diesel engines across various vehicle brands. Genuine factory crankshafts, reconditioned units, and tested used components are available.

Used crankshafts are inspected for runout, journal condition, absence of cracks, overheating signs, and geometry accuracy. Oversize or undersize specifications are indicated when applicable.

Selection is based on VIN number, engine code, cylinder configuration, displacement, and part number. Crankshaft replacement is typically required during major engine rebuilds or after critical mechanical failure.

Compatibility

Fits 4 vehicles

Nothing found

About the manufacturer · VAG

VAG is a commonly used abbreviation referring to the Volkswagen Group, one of the largest automotive manufacturers and component producers in the world. The group was founded in Germany and includes many well‑known autom...

VAG is a commonly used abbreviation referring to the Volkswagen Group, one of the largest automotive manufacturers and component producers in the world. The group was founded in Germany and includes many well‑known automotive brands such as Volkswagen, Audi, Škoda, SEAT, Porsche, Bentley, Lamborghini and several others. In the automotive spare parts market the term VAG usually refers to genuine components designed for vehicles produced within the Volkswagen Group. The product range includes engine components, fuel injection system parts, turbochargers, transmission elements, suspension components, braking systems, electronic modules, sensors, cooling system parts and body components. Genuine VAG parts are developed according to unified engineering standards used across the Volkswagen Group and undergo strict quality control and testing for durability, reliability and safety. This ensures precise compatibility with vehicles of the group and stable operation of all vehicle systems. According to feedback from vehicle owners and automotive repair specialists, VAG genuine parts are known for their high manufacturing quality, strong reliability and long service life. Users frequently highlight precise fitment without the need for modifications and full compliance with factory specifications. The most commonly mentioned drawback is the relatively higher cost compared with many aftermarket alternatives, although many drivers consider original VAG parts the best option for maintaining vehicle reliability and factory performance.

Additional information

Crankshaft by VAG, catalog number 03G105021C, is listed for vehicle repair or maintenance. The catalog identifies the item as “Crankshaft”. Confirmed catalog fitment: Audi A6 C6 4F2 (2004–2011), Audi A6 C6 4F5 (2004–2011), Volkswagen PASSAT B6 3C2 (2005–2011), Volkswagen PASSAT B6 3C5 (2005–2011). Fitment is based on the catalog links between the part and vehicle bodies. It helps narrow the search, but final compatibility must be confirmed for the exact vehicle specification. The primary ordering references are part number 03G105021C and manufacturer VAG. Parts can differ within the same vehicle model by production year, engine, transmission, installation side, or position. Before purchase, compare the number and identification with the removed component and verify body, year, and specification by VIN. Also compare appearance, connectors, mountings, dimensions, and included items whenever those details are relevant to this part. For a reliable match, use the part number, photos of the removed component, and a VIN-based specification check.

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