SKU: 25539222941

Flywheel - BMW E46 M3 / Z4 M Coupe M Roadster

Sale price$405.00 Regular price$450.00
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Description

Flywheel - BMW E46 M3 / Z4 M Coupe M RoadsterLuK 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


    21-21-2-229-900 / 21 21 2 229 900 / 21212229900

    21-21-2-229-910 / 21 21 2 229 910 / 21212229910

    21-21-2-229-940 / 21 21 2 229 940 / 21212229940

    21-21-2-282-345 / 21 21 2 282 345 / 21212282345

    LuK Part #'s   DMF050 / 4150175100

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            Exchange/Return Notes
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            SKU: 25539222941

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            DHK
            Waukegan, US
            ★★★★★ 5
            Good Fit & Quality
            Size: 14-22 2.0L hybrid, Size: 14-22 2.0L hybrid
            This set which includes both the engine and cabit air filters are of good quality and fits my 2020 Honda Accord Hybrid well. The engine filter feels sturdy and well built. The cabin filter, although without charcoal infusion, has many folds which is more important when it comes to effective filtering of particles. The installation was easy and for the set, this set offers a good value.
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            Reviewed in the United States on May 16, 2026
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            ard78641
            Port Orchard, US
            ★★★★★ 5
            Perfect fit!
            Size: 14-22 2.0L hybrid, Size: 14-22 2.0L hybrid
            This is a good value for a combo package which includes a cabin air filter as well as the engine air filter. Both filters were a perfect fit in my 2019 Honda Accord hybrid. The cabin air filter airflow direction is clearly labeled and the pleats are sturdy. Installation was super easy- just drop the glove box cover, pop the cabin filter cover plate, pull out the grungy old filter and pop in the new one. Easy peasy. The engine air filter is also a perfect fit. No complaints or concerns here.
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            Reviewed in the United States on May 10, 2026
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            Verified Purchase
            GreatDanes4U
            Louisville, US
            ★★★★★ 5
            K&N Filters are worth their cost in Filtration and Longevity!
            Size: 8.3" x 8.4" x 0.6"
            Tight fit, never needs replacement, only cleaning and reoiling. It has taken many miles to allow flow to resume after oiling for initial installation. Cold air intakes on numerous vehicles! I Love K&N filters for better filtartion and eventually cost savings!
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            Reviewed in the United States on June 25, 2025
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            Oscar Miranda
            Chelsea, US
            ★★★★★ 5
            Excelente producto
            Size: 8.3" x 8.4" x 0.6"
            Excelente producto
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            Reviewed in the United States on March 27, 2026
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            L&L Dangerfield
            Carnegie, US
            ★★★★★ 5
            Super Quality & Easy to install
            Size: 8.3" x 8.4" x 0.6"
            I've always loved K&N filters! This is no exception. As soon as you pull it out of the box, you feel the heavy duty quality and understand why these can last a lifetime. I highly recommend this and all K&N products. I replaced the in-cabin filter with this K&N filter as well as the engine filter on my 2004 4Runner Sport with the K&N option. I always place the sticker that comes in the box, right on or near the filter housing. Its a great reminder to clean and service the filter periodically. Don't waste any more like looking or researching, just buy this filter. You'll love it!
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            Reviewed in the United States on July 7, 2020

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