Audi RS4 B8 Distribution Intermediate Timing Chain Wheel Sprocket 079109339BD

Audi RS4 B8 Distribution Intermediate Timing Chain Wheel Sprocket is a precision component from the Sprockets category, designed specifically for demanding Audi power units. It is responsible for the stable guidance of the timing chain, which translates into correct engine synchronization and repeatable performance across the entire rev range.

Specifications and technical data

• SKU: 079109339BD
• Mark: Audi
• Condition: Used
• OEM Part Number: 079109339BD
• Substitutable numbers: 079109339BD, 079 109 339 BD
• Part type: Sprocket
• Category: Sprockets

Purpose and function in the timing system

The timing chain sprocket in the Audi RS4 B8 works in direct contact with the chain, responsible for its guidance and the transfer of torque between system components. The correct tooth profile and fitment to the factory chain ensure stable timing operation, reduced vibration, and predictable engine behavior under load. A properly selected sprocket allows for maintaining the correct timing phase, which is crucial for power, torque, and engine smoothness. Replacing a worn component with an original Audi sprocket helps minimize the risk of chain skipping, rough idling, and cold-start issues.

Original origin and Audi fitment

The presented sprocket comes from the Audi parts line, which means maintaining factory manufacturing tolerances and full compatibility with the design of the RS4 B8 power unit. The original sprocket guarantees the correct engagement angle, appropriate rim width, and fitment to factory mounting points, ensuring that installation is predictable for the mechanic. A component from the Sprockets category of this type is particularly important in high-output engines, where timing stability has a direct impact on the durability of the entire system. Using an Audi component reduces the risk of problems resulting from inaccurate fitment or material differences typical of low-quality replacements.

Performance characteristics and installation

The Audi RS4 B8 timing chain sprocket is designed for installation in place of the factory component, without the need for modifying other sub-assemblies. Thanks to the preservation of the original geometry, it is possible to maintain correct chain tension and cooperation with tensioners and guides in the system. During replacement, it is recommended to:

• check the condition of the timing chain and guides,
• verify the timing mark settings after installation,
• use the appropriate tightening torques in accordance with Audi service documentation. This procedure allows for restoring the predictable operation of the timing system and reducing the risk of needing further intervention in the near future.

Component condition and service application

The offered sprocket is a used item, making it an attractive option for servicing high-performance units when the priority is to maintain original specifications while optimizing costs. This solution is particularly useful during engine overhauls, where many components are replaced and maintaining the factory geometry of the timing system remains key. Thanks to the use of an original sprocket, it is possible to maintain the consistency of the entire powertrain, which is important both in daily use and in vehicles used in a more dynamic manner.

Related components and technical knowledge

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 additional sprockets, cooperating drive elements, or other timing drive components, check the available parts in the Audi Sprockets category. To deepen your knowledge about the specifics of Audi units and the selection of original components, it is worth using expert materials – practical tips on identifying the correct parts by numbers and their fitment can be found in the article The five-cylinder Audi engine – a legend from Quattro to RS3 and how to care for it using original Audi parts.