SKU: 74833202401

Flywheel - BMW E39 5 Series / E46 3 Series/ E53 X5 / Z3 / Z4 (many models check fitment)

Sale price$202.95 Regular price$225.50
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Description

Flywheel - BMW E39 5 Series / E46 3 Series/ E53 X5 / Z3 / Z4 (many models check fitment)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

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


    OE Part #'s


    21-21-7-512-474 / 21 21 7 512 474 / 21217512474

    21-20-7-508-456 / 21 20 7 508 456 / 21207508456

    21-21-1-223-610 / 21 21 1 223 610 / 21211223610

    21-21-7-501-379 / 21 21 7 501 379 / 21217501379

    21-21-7-508-556 / 21 21 7 508 556 / 21217508556

    21-21-7-509-078 / 21 21 7 509 078 / 21217509078


    LuK #'s   DMF019 / 4150122100

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 74833202401

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    4.6 ★★★★★
    Based on 28 reviews
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    Verified Purchase
    Melissa
    Boise, US
    ★★★★★ 1
    Hot hot hot. Side sleepers will hate it
    At first touch, these are the coldest pillowcases I own … but only for seconds. Once you actually lay on them, within seconds they adjust to your body temp, the heat feels trapped, my head begins to feel hotter than before I laid down - which has in turn caused me loathe these pillow cases. I hate that I have missed the return window. Would never buy again, would never recommend. My satin ones aren’t even this hot! I gave them the good ole 30-day try. Side sleepers - if you are like me and sleep on your side with arm tucked under pillow - flipping this pillow over in hopes of a cold side - forget it, it’s already hot from your arm.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 29, 2025
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    Verified Purchase
    Trevor Barton
    Houston, US
    ★★★★★ 2
    Ehh
    Pills up rather quickly
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 7, 2026
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    Verified Purchase
    Dorothy Gilbertson
    Lowell, US
    ★★★★★ 3
    Nice but dissapointing
    So it sometimes stays cool but if it’s under a blanket and you have your body on it at all it will get warm but the spots you don’t use will get cool sometimes. I am very disappointed in the material though because it’s like my dry skin scratched the pillow case all over which makes me question it and I don’t think I would buy again.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 15, 2025
    L
    Verified Purchase
    Layton Phillips
    Waukegan, US
    ★★★★★ 5
    Great pillow, but the cooling effect depends on the cover
    Color: Blue-ice Plus, Size: King(Pack of 2)
    I really like this pillow overall. It’s comfortable, supportive, and feels well made. When you use it without a pillowcase, it definitely feels cool to the touch and does what it claims in terms of that initial cooling sensation. However, once you put a pillowcase on it, you can’t really feel the cooling effect anymore. I’ve tried multiple different pillowcases made from different materials, and none of them really let that cool feeling come through. That said, I still love the pillow itself. It’s comfortable and supportive enough that I’m keeping it. Just keep in mind that the cooling feature works best without a cover, which isn’t ideal for everyone. Overall, a good pillow — just manage expectations about the cooling effect once it’s covered.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 17, 2026
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    Verified Purchase
    Hannah N. Ford
    Birmingham, US
    ★★★★★ 5
    Cooling and holds shape.
    Color: Blue-ice Plus, Size: Queen(Pack of 2), Color: Blue-ice Plus, Size: Queen(Pack of 2)
    Very nice pillow for the price is also holding up well and holding shape very cool and comfortable to the touch. Best pillow I found in a long time.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 28, 2026

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