ACT BM19-HDSD Heavy Duty Performance Street Rigid Clutch Kit

The ACT BM19-HDSD is a Heavy Duty / Performance Street Rigid Clutch Kit engineered for drivers who demand increased torque capacity without sacrificing daily driveability. This kit pairs ACT's most popular Heavy Duty pressure plate with a performance street rigid-hub disc, delivering a significant clamp load increase over OEM for enhanced performance on both the street and track.

Heavy Duty Pressure Plate:

• Exclusive diaphragm design increases clamp load, reduces deflection, and maximizes clutch life
• All diaphragms undergo a four-stage heat-treating process for unparalleled durability
• Precision cover stampings provide rigidity and consistency
• 100% clamp load tested and dynamically computer balanced for smooth, high-RPM reliability

Performance Street Rigid-Hub Disc:

• Premium organic friction materials with high copper content for superior heat transfer
• Steel-backed lining delivers greater burst strength and long-term durability
• Chrome-moly hub is heat-treated for strength and durability
• Minimum weight street disc design enables faster, more precise shifts
• Rivet design and materials carefully selected for maximum strength

Performance Characteristics:

• Feel: Light to moderate pedal effort with smooth, positive engagement
• Life: Extended friction life through ACT's exclusive diaphragm design; note that rigid disc design may increase spline wear over time
• Recommended Use: Street and track/race use
• Disc Material: Organic
• Pressure Plate Type: Heavy Duty Diaphragm
• Disc Hub Type: Rigid (Solid)
• Warranty: 12 Months from retail purchase date

Each ACT clutch assembly is computer spin balanced to within 0.25 oz-in — twice the precision of typical OEM production clutches — ensuring vibration-free operation across the entire RPM range. The BM19-HDSD kit includes the pressure plate, performance street rigid clutch disc, release bearing, and alignment tool.