Discover ACT s top-selling Heavy Duty pressure plate, boasting advanced features for superior performance. Engineered with an exclusive diaphragm design, ACT s Heavy Duty pressure plates enhance clamp load, minimize deflection, and prolong clutch lifespan. Undergoing a rigorous four-stage heat-treating process, all diaphragms ensure unmatched durability. Precision cover stampings ensure consistency and rigidity, while ACT s 4-pad or 6-Pad rigid race discs feature premium ceramic friction materials for optimal performance. Crafted with a chrome-moly hub that s heat-treated for added strength, the lightweight design enables seamless, trouble-free shifts. Despite a slightly harsher engagement, the 4-pad or 6-pad rigid race disc ensures lightning-fast shifting, making it ideal for smaller engines with compact disc sizes.