BMW E90 LCI F10 F20 F21 F30 F31 Diesel N47N Dual Twin Mass Flywheel Clutch Kit

The dual mass flywheel and clutch kit for BMW with N47N diesel engine is a solution designed for demanding users who expect stable drivetrain operation and precise torque transmission. This dual mass flywheel and clutch kit has been engineered for diesel units, ensuring proper torsional vibration damping and comfortable gear shifting.

Specifications and technical data

• SKU: 8638897-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8638897
• Substitutable numbers: 21208638897, 8638897, 2120759495821207638349, 2120761601421204588471, 75949587638349, 76160144588471, ŁS, 21207638349, 7638349, 21207594958, 7594958, 21204588471, 4588471, 21207616014, 7616014
• Fuel type: Diesel
• Part type: Dual Mass Flywheel
• Category: Flywheels & Flexplates

Purpose and technical specifications

The presented set, referred to as BMW E90 LCI F10 F20 F21 F30 F31 Diesel N47N Dual Twin Mass Flywheel Clutch Kit, is dedicated to BMW vehicles with the N47N diesel engine. The design of the dual mass flywheel has been developed with the specifics of diesel units in mind, where high torque requires effective vibration damping and protection of the gearbox. Combining the dual mass flywheel with the clutch disc and pressure plate creates a cohesive system that allows for smooth starting, stable acceleration, and a reduction in noise and vibrations transmitted to the body. Using a complete kit facilitates maintenance and reduces the risk of mismatching individual components.

Benefits of using the dual mass flywheel and clutch kit

In vehicles with a diesel engine, proper selection of drivetrain components is crucial. Using a complete dual mass flywheel and clutch kit provides a number of practical benefits:

• better damping of torsional vibrations generated by the diesel engine,
• increased gear shifting comfort due to stable clutch operation,
• protection of gearbox components against overloads,
• more uniform torque transmission to the drivetrain. As a result, the drivetrain operates in a more predictable manner, and the driver experiences significantly higher engine refinement, especially in the low and medium RPM ranges.

Component condition and installation aspects

The offered kit belongs to the Flywheels and gears group and is available in used condition, which allows for economical repair while maintaining the manufacturer's original specifications. Choosing an original BMW component helps maintain the correct operating parameters of the drivetrain and compatibility with the factory solutions used in the given model. During installation, it is recommended to carry out a thorough inspection of the mating components – the contact surface with the gearbox, the release bearing, and the mounts – to ensure proper operation of the entire system after replacement. Professional installation minimizes the risk of vibrations, jerking when starting, and premature clutch wear.

Application in N47N diesel engines

N47N diesel engines are characterized by specific operating characteristics and high torque, which is why the use of a properly selected dual mass flywheel and clutch is essential for the durability of the entire drivetrain. Diesel fuel type means higher dynamic loads, which are effectively compensated for by the dual mass design, limiting the transmission of vibrations to the gearbox and the drivetrain. Selecting a kit compatible with the N47N unit allows for maintaining factory performance characteristics, which translates into predictable vehicle behavior both in city traffic and at higher highway speeds.

Complementary components and service knowledge

If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and need other components from the same group, such as additional flywheels, gears, or related sub-assemblies, check out the available parts in the BMW flywheels and gears category. For users preparing their car for the winter season, practical service knowledge may also be useful – especially regarding the assessment of the condition of used drivetrain components. To this end, it is worth checking out the guide Winter essentials: which used car parts are worth checking and replacing before the frost?, where the importance of inspecting key components before intensive use in low temperatures is discussed.