SKU: 52703979017

Luk OE Quality Dual Mass Flywheel - BMW

Sale price$607.50 Regular price$675.00
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Description

Luk OE Quality Dual Mass Flywheel - BMWLuK dual mass flywheels absorb engine vibrations before they are transmitted to the driveline where they can create gear rattle. These units feature a built in damper designed to isolate engine torque spikes and prevent transmission damage. By design, dual mass flywheels cannot be resurfaced. This all makes the LuK dual mass flywheel the ideal solution. With one drawback: the higher the mass reactance of the vibrating masses, the more excessive the

LuK dual-mass flywheels absorb engine vibrations before they are transmitted to the driveline where they can create gear rattle.

These units feature a built-in damper designed to isolate engine torque spikes and prevent transmission damage. By design, dual-mass flywheels cannot be resurfaced.

This all makes the LuK dual mass flywheel the ideal solution.
With one drawback: the higher the mass reactance of the vibrating masses, the more excessive the resonance increase and associated torque peaks. With the dual mass flywheel, this would be easily perceived when starting and stopping the engine; much more easily than with a conventional clutch system. Additionally: the smaller flymass of the engine has less of a stabilizing effect on the speed fluctuation of the engine.

Thanks to decades of experience in clutch building, the LuK specialists were able to find an excellent solution to this problem. An additional damping device effectively prevents resonance overload. In normal operation, however, this additional damping device has no function and the torsional vibrations of the engine are filtered out by spring dampers.

Friction and spring rate - the correct ratio is important.
For optimal vibration isolation and soft resonance passage when starting and stopping the engine, the ratio between friction and spring rate must be optimal. The length of the springs is a key factor: The softer a spring, the more efficiently vibrations are isolated. The extra-long springs of the latest generation of dual mass flywheels significantly reduce the spring rate compared to a first generation dual mass flywheel. In routine driving operations, excessive resonance increases are kept almost completely away from the gearbox.

Features and Benefits:

  • Top driving comfort
  • Absorbs vibrations
  • Prevents noise
  • Enables comfortable, low-revs driving
  • Saves fuel
  • Relieves crankshaft and gearbox



    OE Part # 's


    21-20-7-573-785 / 21 20 7 573 785 / 21207573785

    21-20-7-541-150 / 21 20 7 541 150 / 21207541150

    21-20-7-556-565 / 21 20 7 556 565 / 21207556565

    21-20-7-569-974 / 21 20 7 569 974 / 21207569974


    LuK Part #'s   DMF082 / 4150389100

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SKU: 52703979017

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K1122
Lowell, US
★★★★★ 5
Five stars
Format: Hardcover
The book was packaged well and arrived in perfect condition. It also arrived early which was great. I recommend this book seller. I read Susan M. Johnson’s other book on EFT, “Hold Me Tight” and found it extremely helpful with my therapy clients. I’m excited to dive into this book too!
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Reviewed in the United States on February 6, 2024
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glenlarsen
Louisville, US
★★★★★ 3
This would have been great if an editor worked on it first
Format: Hardcover
As much as I admire Dr. Johnson and her work, the writing is not good in this book. The ideas are very useful but the reader must slog through complex, turgid sentences and multiple grammatical errors to get the points. I wish more writers had good editing and didn’t submit such poor writing for publication. Dr. Johnson is not alone in this criticism. I think many writers have been trained to write circuitous sentences and that results in the reader working unnecessarily hard to grasp the meaning of the ideas. That said, I am very impressed by her use of research that supports her writing and the ideas she presents. I hope that future publications are more carefully edited before they are published, with the reader in mind. And if you wonder if I am uneducated, rest assured that I have a doctorate in clinical psychology and 20 years post license experience.
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Reviewed in the United States on February 13, 2024
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Michael Robert Hall
Belleville, US
★★★★★ 5
Great!!!
Format: Paperback
This book I feel really gives a great understanding of key topics and points that would potentially be on the exam. Although vague for some folks, potentially, they would be things to know and keep in mind when considering to cost of such an exam.
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Reviewed in the United States on February 18, 2026
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Black Warrior Allah
Lowell, US
★★★★★ 5
A good book.
Format: Paperback
My Latino homie loved this book 📚
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Reviewed in the United States on March 23, 2026
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Solo yo
Waukegan, US
★★★★★ 5
Exelente
Format: Hardcover
Me sorprende el calidad del producto
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Reviewed in the United States on April 18, 2026

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