BMW F20 F21 LCI 114d 116d Diesel B37 B37D15A Dual Twin Mass Flywheel Clutch Kit

BMW F20 F21 LCI 114d 116d Diesel B37 B37D15A Dual Twin Mass Flywheel Clutch Kit is a precisely selected set designed for the drivetrain of modern diesel units. Thanks to its factory-spec construction, it ensures stable torque transmission, reduction of torsional vibrations, and improved drivetrain refinement in daily operation.

Specifications and technical data

• SKU: 8605486
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 8605486
• Substitutable numbers: 21208605486, 8605486, 7614327, 21217614325 21217614326 21207625147, 7614325 7614326 7625147, ŁS
• Fuel type: Diesel
• Category: Flywheels & Flexplates

Purpose and compatibility

The presented dual-mass flywheel and clutch kit has been designed for BMW 1 Series F20/F21 LCI (facelift) models in 114d and 116d versions, equipped with the B37 B37D15A diesel engine. The kit's design is tailored to the characteristics of the Diesel unit, which translates into effective vibration damping and smooth starting even at low RPMs.

Its original origin from the Mini/BMW group ensures the maintenance of factory drivetrain performance parameters, proper fitment to the crankshaft and gearbox, and compliance with factory engine control strategies.

Construction and function of the dual-mass set

The dual-mass flywheel in this kit is responsible for isolating engine vibrations from the gearbox, which reduces noise, vibrations, and jerking during acceleration and gear changes. The integrated clutch works with the flywheel to ensure predictable, linear engagement, which is particularly important in modern high-torque diesel units.

A set configured in this way helps maintain drivetrain comfort, reduces the load transferred to the gearbox and drivetrain components, and promotes even wear of the parts.

Benefits of using the original kit

Using a complete dual-mass flywheel and clutch kit to replace a worn-out system brings a number of practical benefits:

• noticeably smoother starting and gear shifting,
• better damping of vibrations characteristic of diesel engines,
• preservation of the factory drivetrain operating characteristics,
• reduction of the risk of premature gearbox wear.

Thanks to this kit, you can consistently renew a key element of the drivetrain without the need to mix parts of different origins and specifications.

Condition and practical application

The item comes from the Mini group and is classified in the Flywheels and gears category, which clearly defines its function in the drivetrain. As a used part, it represents an attractive solution for users looking for a technically matched component on a reasonable budget, while maintaining the original design and geometry.

Before installation, it is recommended to have the condition of the element verified by a mechanic and to assess the cooperating components (release bearing, slave cylinder, mounts) in order to restore full clutch system efficiency during a single service operation.

Upgrade expansion and technical knowledge

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

When planning upgrades or light tuning of a diesel unit, it is worth considering the condition of the drivetrain – properly selected, used OEM components can be a rational compromise between cost and durability. You can find more practical tips on selecting and using used components in the article The best used parts for tuning your car.