ACT Clutch ZM12-HDG4 Features:

ZM12-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.

• Includes Clutch Friction Disc (4224505-1), Clutch Alignment Tool (AT05), Clutch Pressure Plate (MZ029), Clutch Pilot Bearing (PB1030), Clutch Release Bearing (RB110)
• 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-percent Clamp Load Tested And Dynamically Computer Balanced For Smooth High Rpm Reliability.
• Weight: 26.8 lbs.
• Torque Capacity: 399 ft.-lbs.
• Torque Capacity Over OE: 87-percent
• Pilot Bushing: Yes
• Pressure Plate Type: Heavy-Duty
• Release Bearing: Yes
• Clutch Disc Diameter: 8.8 in.
• Clutch Disc Diameter: 224 mm
• Disc Material: Ceramic
• Input Spline Quantity: 22
• Input Shaft Diameter: 0.9375 in.
• Alignment Tool Included: Yes

ACT Clutch ZM12-HDG4 Notes:

• 225mm upgrade. Must use ACT 600870 flywheel (not included in kit) or a modified OE flywheel. 600870 flywheel is compatible with the OE clutch kit as well as an ACT clutch kit. Flywheel sold separately from clutch kits.