Audi A4 S4 B9 3.0 TFSI Engine Crankshaft Petrol Shaft 06M105019AG

Audi A4 S4 B9 3.0 TFSI Engine Crankshaft Petrol Shaft is a key component of the crank-piston system, designed for 3.0 TFSI petrol engines in B9 series models. The offered crankshaft comes from the Crankshafts group by Audi and is a precision-engineered OEM component, ensuring stable engine operation under high loads.

Specifications and technical data

• SKU: 06M105019AG
• Mark: Audi
• Condition: Used
• OEM Part Number: 06M105019AG
• Substitutable numbers: 06M105019AG, 06M 105 019 AG
• Fuel type: Petrol
• Category: Crankshafts

Purpose and technical characteristics

The presented crankshaft has been designed specifically for the 3.0 TFSI petrol engine in the B9 generation, which translates into an excellent fit for the block geometry and lubrication system. The design of the shaft allows for efficient transfer of torque from the pistons to the drivetrain, while maintaining appropriate rigidity and fatigue resistance during dynamic driving.

As an item from the Crankshafts category, the component is responsible for:

• stable rotational movement of the shaft within the main bearings,
• proper cooperation with connecting rods and pistons,
• maintaining the correct balance of the crank-piston assembly,
• reduction of torsional vibrations within the engine's operating speed range.

Benefits of using an original Audi crankshaft

Choosing an original Audi crankshaft for the 3.0 TFSI unit allows you to maintain factory engine performance parameters. The appropriate geometry of the main and connecting rod journals, as well as the correct mass distribution, help maintain smooth engine operation and reduce unwanted vibrations. This, in turn, affects engine refinement and the durability of cooperating elements, such as bearings, connecting rods, or the flywheel.

The used OEM component is a good solution when engine repair is necessary after mechanical damage or during a major overhaul, and the priority remains to maintain the manufacturer's original specifications without the need for aftermarket replacements with uncertain parameters.

Application in the 3.0 TFSI petrol engine

The 3.0 TFSI engine is a modern turbocharged petrol unit operating under significant thermal and mechanical loads. The crankshaft in such an engine must ensure:

• adequate rigidity under high torque,
• stable cooperation with the lubrication system,
• precise maintenance of alignment in the main bearings,
• the ability to operate in a wide range of speeds without excessive wear.

By maintaining factory design parameters, the Audi A4 S4 B9 3.0 TFSI Engine Crankshaft Petrol Shaft allows for the restoration of proper engine operation after repair, without the need to interfere with the manufacturer's design.

Condition and practical assembly aspects

The offered crankshaft is a used part, which in practice means a favorable combination of price and adherence to original Audi specifications. Before installation, a standard workshop procedure is recommended, including verification of journal surfaces, checking bearing clearances, and verifying the balance of the entire crank-piston assembly in accordance with the vehicle manufacturer's procedures.

Replacing the crankshaft is particularly recommended in the event of mechanical damage, excessive journal wear, or oil pressure problems resulting from improper operation of the crank system. Using an original component from the same engine family facilitates the assembly process and reduces the risk of compatibility issues.

Further engine upgrades

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 cooperating with the crank system, or related parts, check out the available parts in the Audi Crankshafts category.

If you want to further optimize service costs while taking care of the environment, it is worth exploring the topic of conscious use of used components – more information can be found in the article Eco-driving: discover the benefits of used car parts.