BMW 3 Series E46 Petrol N42 N46 Automatic Gearbox Flywheel Ring 7508352

BMW 3 Series E46 Petrol N42 N46 Automatic Gearbox Flywheel Ring is an original component from the Flywheels and gears group, designed for use with an automatic transmission. This used OEM part ensures proper torque transfer between the crankshaft and the transmission, stabilizing the drivetrain operation under typical operating conditions. It is a practical solution for users looking to restore proper drivetrain performance without investing in a new component.

Specifications and technical data

• SKU: 7508352
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7508352
• Substitutable numbers: 11227508352, 7508352, ŁS
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Flywheels & Flexplates

Purpose and compatibility

The presented flywheel is dedicated to BMW 3 Series E46 models equipped with N42 and N46 petrol engines, paired with an automatic transmission. The component's design is tailored to the characteristics of these petrol units, which translates into appropriate torsional vibration damping and stable drivetrain operation under various loads.

As a part from the Flywheels and gears group, this component works with the starter motor and the drivetrain, ensuring proper engagement and correct engine starting. Using an original solution allows for maintaining factory drivetrain performance parameters and reducing the risk of compatibility issues.

Function in the drivetrain

The flywheel in an automatic transmission performs several key technical functions:

• stabilizes the crankshaft speed of the petrol engine,
• transfers torque to the automatic transmission,
• ensures proper engagement with the starter ring gear,
• supports smooth acceleration and gear shifting.

Thanks to its appropriately selected mass and geometry, the flywheel helps reduce vibrations and irregularities in engine operation, which is important for both driving comfort and the durability of other drivetrain components.

Characteristics of the used OEM part

The offered item is a genuine BMW part in used condition, meaning it has been removed from a vehicle and retains the manufacturer's factory specifications. In practice, this translates to:

• proper fitment to the crankshaft and the automatic transmission torque converter,
• preservation of the original ring gear geometry,
• possibility of installation in place of the factory component without structural modifications.

Choosing a used OEM flywheel is often a cost-effective solution while maintaining compliance with factory technical requirements. It is a reasonable option for automatic transmission repairs or when replacing components that interact with the starter motor.

Application in repairs and tuning

The BMW E46 automatic transmission flywheel for N42/N46 engines is a crucial element in comprehensive drivetrain maintenance – both for standard repairs and modifications aimed at improving drivetrain response. Replacing a worn component with a verified used part allows for restoring proper automatic transmission operation, reducing unwanted noise, and improving engine refinement.

If you are interested in broader use of used components in vehicle modification projects, it is worth checking out the tips in the article The best used parts for tuning your car, which describes a practical approach to selecting second-hand components.

Expansion of the system within the same group

If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and need other elements from the same group, such as additional flywheels, mating gears, or related drivetrain components, check out the available parts in the BMW flywheels and gears category.