BMW F10 F11 F20 F21 F22 F30 F31 F32 Petrol N20 Dual Twin Mass Flywheel 7638306

BMW F10 F11 F20 F21 F22 F30 F31 F32 Petrol N20 Dual Twin Mass Flywheel is an original set from the Flywheels and gears category, designed for N20 petrol engines in BMW F-series models. This set is a solution for users seeking factory compatibility, stable drivetrain operation, and predictable drive performance during daily use and more dynamic driving.

Specifications and technical data

• SKU: 7638306-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7638306
• Substitutable numbers: 7638306, 21207638306, 7605403, 21207605403, 7634767, 21207634767, 21217614327, 7614327, 21217614326, 7614326, 21217614325, 7614325
• Fuel type: Petrol
• Category: Flywheels & Flexplates

Purpose and function in the drivetrain

The clutch with a dual-mass flywheel in the N20 petrol engine is responsible for the smooth transfer of torque from the crankshaft to the gearbox and the effective damping of torsional vibrations. In practice, this means reduced vibrations felt in the cabin, improved engine refinement at idle, and stable drivetrain behavior during load changes. Using a complete set allows for maintaining the consistency of the drivetrain's operating characteristics in accordance with BMW's original specifications.

Benefits of using a complete set

Using a complete clutch + dual-mass flywheel solution for N20 petrol units ensures:

• consistent matching of friction and damping elements to the engine's characteristics,
• more predictable behavior during starting and gear shifting,
• reduction of jerking and noise compared to a worn-out system,
• maintenance of the factory operating characteristics of the BMW F20 / F30 drivetrain.

For the user, this means a more comfortable ride, better vehicle control, and a reduced risk of secondary damage to other drivetrain components.

Technical characteristics and compatibility

The clutch and dual-mass flywheel set has been designed specifically for use with petrol engines, which translates into appropriately selected vibration damping characteristics and torque capacity. Its original BMW origin ensures proper balance, geometry, and correct interaction with factory engine and gearbox equipment. The presence of dedicated part numbers and replacement numbers facilitates verification of compatibility with a specific vehicle configuration in BMW catalogs or via a service advisor.

Condition, application, and assembly aspects

As an item from the Flywheels and gears category, the set is intended for installation in place of the factory clutch and dual-mass system in BMW F20 and F30 models with the N20 petrol engine. Before installation, standard workshop procedures are recommended: verifying compatibility by part number, checking accompanying equipment (release bearing, slave cylinder, mounting bolts), and applying the correct tightening torques in accordance with BMW service documentation. This approach minimizes the risk of subsequent vibrations, noise, or premature wear.

Support with selection and additional materials

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

For those considering the use of pre-owned components in modification projects or to improve drive characteristics, a valuable source of knowledge is the article The best used parts for tuning your car, which discusses a practical approach to selecting used components in the context of tuning and informed upgrades.