• ACT Heavy Duty Race Sprung 4 Pad Clutch Kit | Mazda RX-8 (04-11) (ZM8-HDG4)
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ACT Heavy Duty Race Sprung 4 Pad Clutch Kit | Mazda RX-8 (04-11) (ZM8-HDG4)

ACT Heavy Duty Race Sprung 4 Pad Clutch Kit | Mazda RX-8 (04-11) (ZM8-HDG4)

ZM8-HDG4

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$544.00 USD
$671.00 USD $544.00 USD
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The ACT Heavy Duty Race Sprung 4 Pad Clutch Kit for the Mazda RX-8 (2004-2011) is a high-performance clutch upgrade designed to enhance durability and power transfer. This kit features ACT's most popular Heavy Duty pressure plate, which employs an exclusive diaphragm design to increase clamp load, reduce deflection, and extend clutch life. The pressure plate undergoes a four-stage heat-treating process, ensuring maximum performance and reliability under demanding conditions. The inclusion of a 4-pad spring-centered race disc helps damp torsional vibrations, providing smoother engagement and improved drivability. Constructed with precision cover stampings, this clutch kit offers rigidity and consistency for spirited driving and racing applications.

Designed specifically for 2004-2011 Mazda RX-8 models, this clutch kit is a direct replacement for stock components, suitable for street and track use. It is ideal for enthusiasts seeking increased clamping force and longevity in high-performance scenarios. The kit includes all necessary components for installation, ensuring a straightforward upgrade process. Compatible with the vehicle's original flywheel and transmission setup, this clutch kit delivers reliable performance and enhanced grip for aggressive driving, making it suitable for both daily driving and competitive motorsports.

Overview

ACT HD/Race Sprung 4 Pad Kit

ZM8-HDG4 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 spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 4-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 4-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.

Features

  • Part Fitment Requirement: Flywheel requires counterweight (flywheel and counterweight sold seperatly or with flywheel kit). Must use ACT counterweight with ACT flywheel.
  • Product Weight (lbs.): 15.4
  • Torque Capacity (ft/lbs.): 420
  • Torque Capacity Over OE: 0.72
  • Pilot Bushing Included: Yes
  • Pressure Plate Type: Heavy Duty
  • Release Bearing Included: Yes
  • Clutch Disc Diameter (in.): 9.4
  • Clutch Disc Diameter (mm): 240
  • Disc Material: Ceramic
  • Input Spline Quantity: 23
  • Input Shaft Diameter (in.): 1
  • Alignment Tool Included: Yes

Applications

  • 2004-2011 Mazda RX-8

What's In The Box?

  • Clutch Friction Disc (4240208)
  • Clutch Alignment Tool (AT03)
  • Clutch Pressure Plate (MZ010)
  • Clutch Pilot Bearing (PB1013)
  • Clutch Release Bearing (RB110)

References

Warranty

  • Manufacturer 1 Year Warranty
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