BMW 1 3 5 Series E60 LCI E81 E87 E90 Diesel N47 Dual Twin Mass Flywheel 7577479

BMW 1 3 5 Series E60 LCI E81 E87 E90 Diesel N47 Dual Twin Mass Flywheel from the Flywheels and gears category is an original drivetrain component designed for BMW Diesel engines. This dual-mass flywheel has been engineered to effectively dampen torsional vibrations and improve the refinement of the powertrain, resulting in significantly smoother torque transmission.

Specifications and technical data

• SKU: 7637279-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7637279
• Substitutable numbers: 21207637279, 7637279, 21207577479, 7577479, 21207567829, 7567829, KZ
• Fuel type: Diesel
• Category: Flywheels & Flexplates

Purpose and role of the dual-mass flywheel in BMW Diesel engines

The dual-mass flywheel in BMW E60 LCI, E81, E87, and E90 series models is responsible for a stable connection between the engine and the drivetrain. Thanks to its design, it reduces jerking during start-off, minimizes noise, and relieves the gearbox, which contributes to a longer service life of the entire drivetrain. In diesel units, where higher torque and greater vibrations are generated, a functional dual-mass flywheel is crucial for driving comfort and the protection of components.

Benefits of using an original BMW dual-mass flywheel

Using an original dual-mass flywheel dedicated to specific BMW generations allows for maintaining factory drivetrain performance parameters. Proper matching for Diesel engines ensures:

• better damping of torsional vibrations across the entire RPM range,
• smoother gear shifts and reduced load on synchronizers,
• reduction of unwanted vibrations transmitted to the body and interior,
• stable torque transmission during dynamic acceleration.

As a result, the driver experiences a more predictable response from the drivetrain, and cooperating components – such as the clutch and gearbox – operate under more favorable conditions.

Technical characteristics and fitment

The presented dual-mass flywheel is a component from the Flywheels and gears group, prepared for use with BMW diesel engines. The design has been developed based on the specific torque characteristics of Diesel units, allowing for precise adjustment of damping parameters to real-world loads. The product has an assigned OEM part number and a set of interchangeable numbers, which facilitates verification of compatibility with a specific engine version and vehicle year.

The used condition means that the part comes from dismantling, and its selection should always be confirmed based on the vehicle's technical specifications and manufacturer markings. This solution is often chosen for professional repairs where maintaining the original drivetrain performance characteristics while optimizing service costs is a priority.

Application in service practice

The dual-mass flywheel in BMW E60 LCI, E81, E87, and E90 is typically replaced when experiencing:

• noticeable vibrations at idle and low RPM,
• knocking or metallic sounds when turning off the engine,
• jerking during start-off or rapid acceleration,
• comprehensive clutch replacement in Diesel engines.

Selecting the correct component from this group allows for restoring the original refinement of the drivetrain and reducing the risk of secondary gearbox damage. In vehicles used intensively – both in city traffic and on longer routes – a functional dual-mass flywheel has a significant impact on user comfort and the stability of the entire drivetrain.

Drivetrain expansion and additional materials

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

To compare the performance characteristics of different sports drivetrains and the impact of components such as the flywheel, clutch, or brakes on vehicle behavior, it is worth reading the material comparing stock and sports constructions – you can find it in the article Audi RS vs other models – what is hidden under the hood and chassis?.