Audi A8 D4 Q7 4L Timing Chain Camshaft Sprocket 079109565F

Audi A8 D4 Q7 4L Timing Chain Camshaft Sprocket is an original part from the Sprockets group, designed for operation in a precision engine timing system. Thanks to its factory origin from the Audi brand, it ensures proper meshing with the chain, stable mechanism operation, and predictable engine performance over a long service life.

Specifications and technical data

• SKU: 079109565F
• Mark: Audi
• Condition: Used
• OEM Part Number: 079109565F
• Substitutable numbers: 079109565F, 079 109 565 F
• Category: Sprockets

Purpose and function in the timing system

The presented sprocket is a component of the timing system responsible for transferring drive from the chain to cooperating engine sub-assemblies. Properly selected tooth geometry and appropriate material hardness reduce the risk of chain skipping, which translates into stable timing phases and smooth operation of the power unit.

In applications typical for high-end models, such as the Audi A8 D4 or Audi Q7 4L, the sprocket must operate under demanding load conditions. The original design ensures:

• precise timing chain guidance,
• adequate stiffness and resistance to material fatigue,
• stable cooperation with other timing system components.

Construction and build quality

The sprocket has been designed as an OEM component, maintaining factory dimensional tolerances and a tooth profile matched to the specific type of timing chain. As a result, installation is performed without the need to modify other components, and the entire system retains the parameters specified by the vehicle manufacturer.

A carefully selected material and heat treatment process ensure resistance to abrasive wear and impact loads that occur during engine speed changes. This is particularly important in higher-power units, where timing stability has a direct impact on engine refinement and durability.

Component condition and installation aspects

The sprocket is offered in used condition, which means it comes from disassembly but retains parameters allowing for further operation in the timing system. This type of part is a good solution for engine service when maintaining the original specification while optimizing repair costs is a priority.

Before installation, a standard workshop procedure is recommended: visual inspection of the tooth profile, checking the working surfaces, and verifying the correctness of cooperation with the chain and other timing elements. A correctly installed sprocket allows for maintaining proper shaft synchronization and minimizes the risk of improper engine operation.

Benefits of using an original Audi sprocket

Using an original sprocket in the Audi A8 D4 or Audi Q7 4L timing system brings a number of practical benefits:

• Factory fitment – maintaining original geometry and tolerances, without issues with installation and alignment.
• Stable timing operation – proper meshing with the chain reduces noise, vibration, and the risk of skipping.
• Consistency with other elements – the sprocket works with factory tensioners, guides, and the chain, which facilitates diagnostics and service.
• Economical repair – a used OEM component allows maintaining high quality within a reasonable service budget.

Expanding timing system service

When working on the timing system, it is worth considering comprehensive maintenance of the entire system, including inspection of the chain, tensioners, and guides. Such an approach reduces the risk of needing to re-enter the engine in a short time and allows maintaining unit performance parameters at a stable level. In case of doubts regarding the scope of replacement, a good solution is to consult a specialized service center that will assess the condition of all cooperating elements.

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 idler gears, camshaft sprockets, or other chain drive components, check the available parts in the Audi Sprockets category.