ACT® ZM4-HDR4 - Heavy Duty Race Single Disc Clutch Kit

Heavy Duty Race Single Disc Clutch Kit by ACT®. Does not Include: Flywheel. Disc Outer Diameter: 8.8". Input Shaft Spline: 1" x 23 Teeth. Disc Center Style: Solid. Disc Type: 4-Pad. Clutch Torque Rating: 355 ft/lbs. Disc Material: Ceramic. This 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 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 rigid race disc, engagement is harsher, but shifting is faster. The rigid race disc is well-suited for the smaller disc sizes in smaller engines.

Specifications

Includes

• 4 Pad Rigid Race Disc P/N 4224008
• Alignment Tool P/N AT03
• P/PL Heavy Duty P/N MZ018
• Pilot Bearing P/N PB1030
• Release Bearing P/N RB110

Features

• Light to moderate pedal effort, aggressive engagement, increased gear rattle
• Moderate friction life, extended by ACT's exclusive diaphragm design, rigid design may increase spline wear
• Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance
• 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

Advanced Clutch Technology, Inc. has been leading the clutch industry since its foundation in 1994. For over two decades ACT has designed and engineered best-in-class performance flywheels and clutch kits for sport compact cars and diesel trucks. Manufactured by combining the ultimate in design with the finest materials and manufacturing techniques, all ACT clutch kits stand unequaled in terms of predictable pedal feel, long wear life, high torque capacity and ultimate durability. Each product is thoroughly tested prior to release to ensure it meets the highest standards.