ACT SB10-HDR4 Heavy Duty Race Rigid 4 Pad Disc for Subaru

SB10-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. Monoloc is a one-piece, direct replacement or upgrade to the standard, two-piece wedge collar and wire ring featured in pull-type clutches. The spring tension of the segmented retaining ring is carefully calculated and tested for optimal performance. It provides uniform loading on the bearing and pressure plate to assure proper alignment, regardless of driver influence or vehicle modifications. Monoloc's hardened chrome-moly steel construction will provide years of service.

Features

• A low to moderate pedal feel; aggressive engagement with stock to low to moderate gear rattle. Monoloc provides uniform loading on the bearing and pressure plate to assure proper alignment, regardless of driver influence or vehicle modifications.
• Longer clutch life achieved through ACT's exclusive diaphragm design. Monoloc's hardened Chrome-moly steel construction will provide years of service.
• Premium ceramic friction materials provide low wear rates and high heat tolerance. The spring tension of the segmented retaining ring is carefully calculated and tested for optimal performance.
• Recommended for race use only
• All ACT pressure plates are dynamically computer balanced for smooth operation at high RPM. Monoloc is a one-piece, direct replacement or upgrade to the standard, two-piece wedge collar and wire ring featured in pull-type clutches.

Specifications

• Description: HD-M/Race Rigid 4 Pad
• Torque Capacity (ft/lbs.): 660
• Torque Increase Over O.E.: 86%
• SFI: N/A
• Disc Type: Race Disc
• Spline Count: 24
• Spline Size (in.): 1''
• Disc Diameter (in.):9.4''
• Disc Diameter (mm.): 240
• Pressure Plate Type: Heavy Duty
• Product Weight (lbs.): 15.9
• Kit Contents: 4240018, AT90,PB1004,RB601,SB019
• Warranty (Product Warranty): One (1) Year from Retail Purchase

Vehicle Fitment:

• SUBARU IMPREZA WRX STI 2.5L/2458cc H4 TURBO DOHC (2004-2011)
• SUBARU IMPREZA WRX STI 2.5L/2458cc H4 (2012-2014)
• SUBARU IMPREZA WRX STI LIMITED 2.5L/2458cc H4 TURBO DOHC (2007-2014)
• SUBARU IMPREZA WRX STI SPECIAL EDITION 2.5L/2458cc H4 TURBO DOHC (2010)
• SUBARU LEGACY GT SPEC.B 2.5L/2458cc H4 (2007-2009)
• Subaru Impreza WRX Sti F4 2L EJ20 (2002-2005)