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SB5-HDG4 - ACT Heavy Duty Race Sprung 4 Pad Clutch Kit
$1,100.00
SKU
SB5-HDG4
Also Available:
Specifications
| Item Description | ACT Heavy Duty Race Sprung 4 Pad Clutch Kit |
|---|---|
| Product Weight (lbs.) | 14.4 |
| Torque Capacity (ft/lbs.) | 535 |
| Torque Capacity Over OE | 69% |
| Disc Material | Ceramic |
| Clutch Disc Diameter (Inches) | 9 |
| Clutch Disc Diameter (Millimeters) | 228 |
| Input Shaft Diameter (inches) | 1 |
| Pressure Plate Type | Heavy Duty |
| Warranty | 12 Months (view details) |
Description
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.
| 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 |
Vehicle Fitment
| Application | Engine |
|---|---|
| 2005 Subaru Legacy GT | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2005 Subaru Legacy GT Limited | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2005 Subaru Outback XT | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2005 Subaru Outback XT Limited | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2006 Saab 9-2X Aero | 2.5 H4 GAS FI 2458cc | DOHC |
| 2006 Subaru Baja Turbo | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2006 Subaru Forester XT Limited | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2006 Subaru Impreza WRX | 2.5 H4 GAS FI 2458cc | DOHC |
| 2006 Subaru Impreza WRX Limited | 2.5 H4 GAS FI 2458cc | DOHC |
| 2006 Subaru Impreza WRX TR | 2.5 H4 GAS FI 2458cc | DOHC |
| 2006 Subaru Legacy GT | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2006 Subaru Legacy GT spec.B | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2006 Subaru Outback XT | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2006 Subaru Outback XT Limited | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2007 Subaru Forester XT Limited | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2007 Subaru Impreza WRX | 2.5 H4 GAS FI 2458cc | DOHC |
| 2007 Subaru Impreza WRX Limited | 2.5 H4 GAS FI 2458cc | DOHC |
| 2007 Subaru Impreza WRX TR | 2.5 H4 GAS FI 2458cc | DOHC |
| 2007 Subaru Legacy GT Limited | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2007 Subaru Legacy GT spec.B | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2007 Subaru Outback XT Limited | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2008 Subaru Forester 2.5 XT | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2008 Subaru Forester Sports 2.5 XT | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2008 Subaru Forester XT Limited | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2008 Subaru Impreza WRX | 2.5 H4 GAS FI 2458cc | DOHC |
| 2008 Subaru Legacy GT | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2008 Subaru Legacy GT Limited | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2008 Subaru Legacy GT spec.B | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2008 Subaru Outback 2.5 XT | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2008 Subaru Outback XT Limited | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2009 Subaru Impreza WRX | 2.5 H4 GAS FI 2458cc | DOHC |
| 2009 Subaru Impreza WRX Premium | 2.5 H4 GAS FI 2458cc | DOHC |
| 2009 Subaru Legacy GT Limited | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2009 Subaru Legacy GT spec.B | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2009 Subaru Outback XT Limited | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2010 Subaru Impreza WRX | 2.5 H4 GAS FI 2458cc | DOHC |
| 2010 Subaru Impreza WRX Limited | 2.5 H4 GAS FI 2458cc | DOHC |
| 2010 Subaru Impreza WRX Premium | 2.5 H4 GAS FI 2458cc | DOHC |
| 2010 Subaru Legacy 2.5GT | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2011 Subaru Impreza WRX | 2.5 H4 GAS FI 2458cc | DOHC |
| 2011 Subaru Impreza WRX Limited | 2.5 H4 GAS FI 2458cc | DOHC |
| 2011 Subaru Impreza WRX Premium | 2.5 H4 GAS FI 2458cc | DOHC |
| 2011 Subaru Legacy 2.5GT | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2012 Subaru Impreza WRX | 2.5 H4 GAS FI 2458cc | DOHC |
| 2012 Subaru Impreza WRX Limited | 2.5 H4 GAS FI 2458cc | DOHC |
| 2012 Subaru Impreza WRX Premium | 2.5 H4 GAS FI 2458cc | DOHC |
| 2012 Subaru Legacy 2.5GT | 2.5 H4 GAS FI 2458cc | DOHC | Turbocharged |
| 2013 Subaru Impreza WRX | 2.5 H4 GAS FI 2458cc | DOHC |
| 2013 Subaru Impreza WRX Limited | 2.5 H4 GAS FI 2458cc | DOHC |
| 2013 Subaru Impreza WRX Premium | 2.5 H4 GAS FI 2458cc | DOHC |
| 2013 Subaru WRX Base | 2.5 H4 GAS FI 2458cc | DOHC |
| 2013 Subaru WRX Limited | 2.5 H4 GAS FI 2458cc | DOHC |
| 2014 Subaru Impreza WRX | 2.5 H4 GAS FI 2458cc | DOHC |
| 2014 Subaru Impreza WRX Limited | 2.5 H4 GAS FI 2458cc | DOHC |
| 2014 Subaru Impreza WRX Premium | 2.5 H4 GAS FI 2458cc | DOHC |
| 2014 Subaru WRX Base | 2.5 H4 GAS FI 2458cc | DOHC |
| 2014 Subaru WRX Limited | 2.5 H4 GAS FI 2458cc | DOHC |
| 2015 Subaru WRX Base | 2.0 H4 GAS FI 1998cc | DOHC |
| 2015 Subaru WRX Limited | 2.0 H4 GAS FI 1998cc | DOHC |
| 2015 Subaru WRX Premium | 2.0 H4 GAS FI 1998cc | DOHC |
| 2016 Subaru WRX Base | 2.0 H4 GAS FI 1998cc | DOHC |
| 2016 Subaru WRX Limited | 2.0 H4 GAS FI 1998cc | DOHC |
| 2016 Subaru WRX Premium | 2.0 H4 GAS FI 1998cc | DOHC |
| 2017 Subaru WRX Base | 2.0 H4 GAS FI 1998cc | DOHC |
| 2017 Subaru WRX Limited | 2.0 H4 GAS FI 1998cc | DOHC |
| 2017 Subaru WRX Premium | 2.0 H4 GAS FI 1998cc | DOHC |
| 2017 Subaru WRX Sport | 2.0 H4 GAS FI 1998cc | DOHC |
| 2017 Subaru WRX Sport-tech | 2.0 H4 GAS FI 1998cc | DOHC |
| 2018 Subaru WRX 6 Man | 2.0 H4 GAS FI 1998cc | DOHC |
| 2018 Subaru WRX Base | 2.0 H4 GAS FI 1998cc | DOHC |
| 2018 Subaru WRX Limited | 2.0 H4 GAS FI 1998cc | DOHC |
| 2018 Subaru WRX Premium | 2.0 H4 GAS FI 1998cc | DOHC |
| 2018 Subaru WRX Sport | 2.0 H4 GAS FI 1998cc | DOHC |
| 2018 Subaru WRX Sport-tech | 2.0 H4 GAS FI 1998cc | DOHC |
| 2006 Subaru Impreza WRX Sti [JDM] | 2.5L F4 FI| T |
| 2007 Subaru Impreza WRX Sti [JDM] | 2.5L F4 FI| T |
Kit Contents:
Frequently Asked Questions
- Are ACT clutches balanced?
- Yes! All ACT clutch assemblies are computer spin balanced to within .25 oz-in to guarantee help smooth operation across the entire RPM range. For comparison, stock production clutches are typically balanced to within .50 oz-in. Lower is definitely better!
- Will an ACT clutch increase pedal effort?
- ACT pressure plates are specifically designed to handle high torque applications. With ACT's durable design, expect an increase in pedal effort between 15-40% (Heavy Duty) and 50-80% (Xtreme), depending on the application. Clutches developed with less pedal effort often result in a lack of longevity, torque capacity and/or engagement quality.
- Do ACT clutches require a break in period?
- For organic street discs, we recommend breaking in the clutch for 300-500 miles with mild engagement, such as stop-and-go city driving prior to racing or spirited driving. ACT race discs usually only require a few hard slips to lap in the surfaces prior to normal driving or racing. Do not overheat the clutch during the break in period, as this can result in friction surfaces fusing together, hot spots, and friction surface glazing.
- Are ACT clutches repairable or rebuildable?
- In some situations, rebuilds or repairs may be possible (see warranty), after inspection of the clutch assembly. Please contact our technical department for further information. Because of special modifications, we do not recommend servicing by a general clutch rebuilder.
- How much does an ACT clutch weigh?
- The weight of the ACT clutch assembly will usually be the same as a stock OEM clutch assembly.
PROP 65 WARNING
This product can expose you to chemicals including carbon black, glass wool fibers, and silica (in clutch discs), chromium and nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. for more information, visit www.P65Warnings.ca.gov