ACT Heavy Duty 4 Puck Sprung Disc Clutch Kit | 2006-2021 Subaru WRX (SB5-HDG4)

ACT HD/Race Sprung 4 Pad Clutch Kit

SB5-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

Torque Capacity (ft/lbs.): 535

Light to moderate pedal effort, aggressive engagement, OE to mild gear rattle

Moderate friction life, extended by ACT's exclusive diaphragm design

Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance

Recommended for high horsepower street or race use

100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

Applications

2006-2020 Subaru WRX

2006 Saab 9-2X Aero 2.5L/2458cc H 4 Turbocharged

2006 Subaru Baja Turbo

2006-2007 Subaru Forester XT Limited

2008 Subaru Forester 2.5 XT

2005-2012 Subaru Legacy GT / Limited / Spec B

*230mm

*5 Speed applications only

*Must be used with ACT flywheel or factory flywheel for 2006 and newer WRX (not included)

What's in the box?

4228218 - 4 Pad Sprung Race Disc

AT90 - Alignment Tool

PB1004 - Pilot Bearing

RB844 - Release Bearing

SB014 - P/PL Heavy Duty Pressure Plate

Installation Instructions!

Specifications

Description: HD/Race Sprung 4 Pad

Torque Capacity (ft/lbs.): 535

Torque Capacity Over OE: 69%

Disc Type: Race Disc

Spline Count: 24

Spline Size (in.): 1

Disc Diameter (in.): 9

Disc Diameter (mm.): 228

Pressure Plate Type: Heavy Duty

Product Weight (lbs.): 14.4