SKU: 11782475671

Dual-Mass Clutch Flywheel - BMW / N20 / F3X

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Description

Dual-Mass Clutch Flywheel - BMW / N20 / F3XLUK is an OEM Flywheel manufacturer for BMW. 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


LUK is an OEM Flywheel manufacturer for BMW.  


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




    Part #'s


    21-20-7-638-306 / 21 20 7 638 306 / 21207638306


    LuK Part #   DMF154 / DMF 154 / DMF-154



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SKU: 11782475671

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Brooke
Birmingham, US
★★★★★ 5
Hot tamales!
Format: Kindle
So Nico, using food as his love language. Damien, stoic and mysterious. Theo strong and constant. All revolving around Tessa, whose more than just a nanny. Absolutely loved it. Steamy and packed with awe and wonder as they travel the world in the name of art. Couldn't put the story down.
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Reviewed in the United States on May 27, 2026
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Epicus Doomicus
Draper, US
★★★★★ 4
Entertaining Sweet and Steamy Billionaire RH Romance🔥❤️🔥
Format: Kindle
In this entertaining sweet and steamy,billionaire, RH romance Tessa is working as a server at a party for the Hawthorne Conservancy where she meets a cute little girl Tabitha who is going to change her life. After the party Tabitha can't stop talking about Tessa so her father Damian who's a billionaire takes it upon himself to just show up with no warning. The purpose of the surprise visit is to offer Tessa the job as Tabitha's nanny which she really has no chance of refusing. Once Tessa accepts the job she meets Nico the chauffeur as well as Theo the head of security Damian,Nico and Theo go everywhere and do everything together. What Tessa thought was going to be a simple nanny job has turned into so much more. I don't want to say anymore and ruin it for anyone else with spoilers. You really need to read this entertaining, sweet and steamy, billionaire, RH romance to see what happens. I would recommend reading this book. I received a free copy of this book via Booksprout and am voluntarily leaving a review.
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Reviewed in the United States on October 11, 2025
K
Kimie611
Dallas, US
★★★★★ 3
Just okay
Format: Kindle
This is the second book from this duo I’ve read. And I just can’t get into it. Like Cassie Cole books. Sasha Moon is new to me. This book has a decent storyline. Intrigue. Exotic places. Dangerous underworld. Tessa is plucked from her waitressing job to nanny for Damien. The billionaire art mogul and his 2 friends. They are deep into a new project that they call the Legacy Collection. She’s whisked around the world as she Nanny’s for the billionaire. My problem is that I just do not like Tessa. She’s quickly inserting herself into business she knows nothing about. Creeping around places she shouldn’t be and the billionaire and his security is okay about it. A slight talking to and that’s all. I like a strong female character, but she was often a brat. She just wasn’t likable to me. She was tolerable once they arrived in Greece, but I was too far gone at that point. Good level of spice. The scenes were hot. The guys were likable. Overall, I couldn’t wait to finish it but I found myself often putting off picking it up
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Reviewed in the United States on October 10, 2025
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KE
Phoenix, US
★★★★★ 5
Great Story!!
Format: Kindle
This was a great story however, it did seem a little short. Maybe a little rushed, but that could also be because I wanted a little more development of the characters as a family :). Also, I love how this story doesn’t seem like there are two different authors! Whew :). I love that!!! The only real criticism I have is that there are too many characters with names that start with the letter “T” and it makes reading the story a little confusing.
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Reviewed in the United States on December 9, 2025
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JGnAG
Massapequa, US
★★★★★ 5
Suspense and sexy
Format: Kindle
An very interesting spice of sexy and suspense with quirky and funny dialog that brings out the best of each one. Worth the read.
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Reviewed in the United States on December 18, 2025

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