SKU: 91132735359

Advanced Clutch HD/Race Rigid 4 Pad Kit (DN4-HDR4)

$449.10 $499.00
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Description

Advanced Clutch HD/Race Rigid 4 Pad Kit (DN4-HDR4)DN4 HDR4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four stage, heat treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4 pad rigid race discs are made with high quality, ceramic friction

DN4-HDR4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. The 4-pad rigid race disc is well-suited for the smaller disc sizes in smaller engines.

Features:

  • Light to moderate pedal effort, aggressive engagement, increased gear rattle
  • Moderate friction life, extended by ACT's exclusive diaphragm design, rigid design may increase spline wear
  • Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance
  • Recommended for race use only
  • 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability
    • Shipping Notes
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    Exchange/Return Notes
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    • Final sale items are not eligible for returns or exchanges.
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    SKU: 91132735359

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    4.4 ★★★★★
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    Agamemnon
    Chelsea, US
    ★★★★★ 5
    Excellent Essay
    Format: Paperback
    Wolff is a one of the best people I know of to deliver a quick handbook to Marx. He delivers a master class on this complicated subject and I have long respected his views on economics and politics.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 15, 2025
    C
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    CL
    West Palm Beach, US
    ★★★★★ 5
    Awesome Introduction. A quick, easy read.
    Format: Paperback
    Very good overview and a quick little read! I was able to read this in a day, despite having ADHD. That, in my opinion, is a testament to the engaging, straight-forward writing style. I now feel well-versed enough in thd basics to read more in-depth texts. Highly recommended.
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    Reviewed in the United States on October 19, 2025
    M
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    M.Jones
    West Palm Beach, US
    ★★★★★ 4
    Brief and informative
    I recommend this book to anyone that is curious about what exactly Marxism or socialism is but does not care to read volumes of material from Karl Marx himself. It's a quick yet poignant look at the major points and positions of the philosopher Karl Marx and gives you reason to go further study of you desire. This book will leave the average person with enough knowledge to hold an intelligent conversation about what Marxism is. Can be read on a commute to and from work or a 2hr plane ride.
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    Reviewed in the United States on September 26, 2020
    B
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    Brian Mulvey
    New York, US
    ★★★★★ 5
    The only system to replace capitalism m
    Format: Paperback
    Professor Wolff has written Marxism in an easy to understand, simplified pamphlet. I have listened to many of his podcasts and he speaks very clearly and deliberately so his audience can easily understand. Highly recommended reading for all Americans.
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    Reviewed in the United States on December 25, 2024
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    Kristofer Carlson
    Massapequa, US
    ★★★★★ 5
    An excellent introduction
    Dr. Richard Wolff has a gift for simplifying complex material, distilling it down to its essence, and delivering it in a winsome manner. His gifts are on display here, for Karl Marx is a hard read. And yet, after reading this introduction, it is possible to catch a glimpse of hitherto unseen trains of Kark Marx's thought. After reading this introduction, it is clear that Marxism is not the same thing as Communism, or Socialism, or Fascism. Marxism is nothing more than an analysis and critique of Capitalism. That analysis and critique is used by many for their own purposes, purposes that have only a tenuous relationship to the source material.
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    Reviewed in the United States on October 24, 2020

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