Audi A4 S4 B8 A5 8T Timing Chain Gear Bearing Pin Left N/S Petrol 06E109289

The Audi A4 S4 B8 A5 8T Camshaft Sprocket Hub Left is a precise timing component designed for Audi's petrol engines. It is responsible for the stable seating and correct operation of the camshaft sprocket on the left side of the engine, which directly impacts the accuracy of timing phases and the smoothness of the engine's operation.

Specifications and technical data

• SKU: 06E109289
• Mark: Audi
• Condition: Used
• OEM Part Number: 06E109289
• Substitutable numbers: 06E109289, 06E 109 289
• Location on the vehicle: Left
• Fuel type: Petrol
• Category: Timing Chains

Purpose and Function in the Timing System

The left camshaft sprocket hub in Audi petrol engines works in direct conjunction with components from the Timing Chains group. Its task is to transfer loads from the camshaft sprocket to the shaft and maintain the stable geometry of the entire system. A correctly selected hub minimizes the risk of timing phase shifts, timing system noise, and accelerated wear of cooperating components.

For units installed in Audi A4, S4 B8, and A5 8T, the correct fitment of the left hub is particularly important due to the complex design of the timing drive in higher-powered petrol engines. Using the right component allows for the preservation of factory operating parameters and reduces the risk of costly failures.

Compatibility with Audi Petrol Engines

The presented hub is designed to work with Audi petrol engines where the timing is realized by a chain. Its placement on the left side of the unit requires maintaining the correct profile, diameters, and surfaces that cooperate with the camshaft sprocket and shaft. This allows the component to be used as a suitable replacement in case of wear or damage to the factory hub.

Before installation, it is recommended to verify compatibility with the specific engine version and compare the geometry with the removed component. Proper fitment ensures the axial alignment of the system, which translates to even loading of the timing chain and sprockets.

Characteristics of a Used Component

The offered camshaft sprocket hub is a salvaged part, meaning it is a used component that has been selected for its continued suitability for installation. Such a component, provided it meets acceptable wear tolerances, can be an effective alternative to new parts, especially for maintenance repairs or restoring engine functionality in vehicles with higher mileage.

Choosing a used hub can reduce service costs while maintaining compatibility with the original timing system design. However, it is crucial to perform the installation according to the manufacturer's procedures, observing the correct tightening torque and inspecting the cooperating surfaces.

Role in the Durability of the Timing Chain System

The condition of the hub directly affects the lifespan of the timing chain, sprockets, and tensioners. Smooth, unworn cooperating surfaces reduce vibrations and uneven loads, contributing to the stable operation of the entire system. Replacing a worn hub with a functional component is recommended for any major timing system intervention, especially when symptoms such as noise, play, or signs of excessive wear on the camshaft sprocket are observed.

In Audi petrol engines, where the timing operates under significant load, maintaining the condition of the hub is one of the key elements of service prevention. This helps reduce the risk of chain jump, timing phase desynchronization, and potential valve damage.

Expansion and Modernization of the Audi Timing System

If you are planning a comprehensive repair or modernization of the engine area in your Audi and need other parts from the same group, such as sprockets, tensioners, or guides, check the available parts in the Audi Timing Chains category.

When selecting used components for the drivetrain and suspension, it is also worth expanding your knowledge on design differences and the impact of wear on safety and driving comfort – the article Stock vs. Sport Suspension – Design Differences and Is It Worth Buying Used Suspension Parts?, which discusses practical aspects of choosing used parts, may be helpful.