• ACT Heavy Duty Race Sprung 4 Pad Clutch Kit | Multiple Subaru Fitments (SB11-HDG4)
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ACT Heavy Duty Race Sprung 4 Pad Clutch Kit | Multiple Subaru Fitments (SB11-HDG4)

ACT Heavy Duty Race Sprung 4 Pad Clutch Kit | Multiple Subaru Fitments (SB11-HDG4)

SB11-HDG4

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$1,226.00 USD
$1,514.00 USD $1,226.00 USD
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The ACT Heavy Duty Race Sprung 4-Pad Clutch Kit is a high-performance clutch assembly designed for demanding racing applications and heavy-duty use. 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 components undergo a four-stage heat-treating process to ensure durability and consistent performance under extreme conditions. The 4-pad spring-centered race disc is engineered to damp torsional vibrations effectively, providing smooth engagement and reliable power transfer. Constructed with precision cover stampings, this clutch kit offers enhanced rigidity and stability, making it suitable for high-stress driving environments.

Designed for multiple Subaru fitments, including various models equipped with compatible engines, the ACT SB11-HDG4 clutch kit serves as a robust upgrade for street, track, or racing applications. It is a direct replacement for stock clutch components, offering improved clamping force and longevity. The kit typically includes the pressure plate, clutch disc, and necessary hardware for installation. Suitable for vehicles requiring a heavy-duty, high-performance clutch solution, this kit ensures reliable engagement and consistent power delivery during aggressive driving or racing scenarios. Proper fitment should be verified for specific Subaru models and engine configurations before installation.

Overview

HD/Race Sprung 4-Pad Clutch Kit by ACT

SB11-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

  • Feel - Light to moderate pedal effort, aggressive engagement, OE to mild gear rattle
  • Life - Moderate friction life, extended by ACT's exclusive diaphragm design
  • Quality - Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance
  • Recommended Use - Recommended for high horsepower street or race use
  • ACT Difference - 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

Applications

  • 2006 - 2021 Subaru WRX
  • 2004 - 2008 Subaru Forester XT
  • 2005 - 2012 Subaru Legacy GT
  • 2005 - 2009 Subaru Outback XT
  • 2004 - 2006 Subaru Baja Turbo
  • 2005 - 2006 Saab 9-2X Aero

Specifications

  • Product Weight (lbs.): 28.5
  • Disc Type: Sprung Race Disc
  • Disc Material: Ceramic
  • Pad Quantity: 4
  • Pressure Plate Type: Heavy Duty
  • Torque Capacity (Over OE): 78%
  • Torque Capacity (ft/lbs.): 574

What's In The Box?

  • 1 - 4-Pad Sprung Race Disc
  • 1 - Heavy Duty Pressure Plate
  • 1 - Flywheel
  • 1 - Release Bearing
  • 1 - Alignment Tool

References

Warranty

  • Manufacturer Standard Warranty
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