The HA3-SPG4 kit features a Sport pressure plate for an upgrade.
ACT Sport pressure plates utilize an exclusive diaphragm design to increase clamp load, reduce deflection, and maximize clutch life.
All diaphragms undergo a four-stage heat-treating process for performance.
ACT pressure plates have precision cover stampings to ensure rigidity and consistency.
The 4-pad spring-centered race disc from ACT features a spring-center construction to damp torsional vibrations for quieter operation and resist failure under harsh conditions.
ACT spring retainers use wraparound spring windows and thicker retainer stampings to support springs, reduce stress concentrations, and increase reliability.
With the 4-pad spring-centered race disc, engagement is harsher, but shifting is faster.
The 4-pad spring-centered race disc from ACT is suitable for smaller disc sizes in smaller engines.
Parts Included: 4224210, AT58, H026S, RB817.
