The ACT ZM14-HDG6 clutch kit is engineered for drivers who need dependable performance, quick shifting, and increased durability from a high-performance Mazda MX-5 Miata clutch system. This Heavy Duty/Race Sprung 6-Pad kit combines ACT’s popular Heavy Duty pressure plate with a spring-centered race disc and flywheel for high-horsepower street or race applications. It is designed to provide light to moderate pedal effort while delivering aggressive engagement and responsive clutch operation.
ACT’s exclusive diaphragm design increases clamp load, reduces deflection, and helps maximize clutch service life. Each diaphragm undergoes a four-stage heat-treating process for consistent performance under demanding conditions. Precision cover stampings improve rigidity and consistency, while every pressure plate is clamp-load tested and dynamically computer balanced to support smooth, reliable operation at high RPM. Select ceramic friction materials provide high heat tolerance and help the clutch withstand demanding use.
The 6-pad, spring-centered race disc is designed to absorb more heat and resist failure during severe operation. Its spring-centered construction helps damp torsional vibrations, while ACT’s reinforced spring retainers use wraparound spring windows and thicker stampings to support the springs, reduce stress concentrations, and improve strength. Engagement is harsher than an original-equipment clutch, but the result is faster shifting and strong power transfer. The ACT ZM14-HDG6 is recommended for 2019-2020 Mazda MX-5 Miata applications and is backed by ACT’s one-year warranty. Follow all vehicle and installation requirements for proper fitment and operation.
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