The ACT NX6-HDG4 Heavy Duty/Race Sprung 4 Pad Kit is specifically engineered for performance-driven applications, delivering enhanced durability and responsiveness. This kit features ACT's renowned Heavy Duty pressure plate, designed using an exclusive diaphragm mechanism that increases clamp load, minimizes deflection, and extends clutch lifespan. Each diaphragm undergoes a rigorous four-stage heat treatment, ensuring optimal performance under demanding conditions.
ACT pressure plates are crafted with precision cover stampings that enhance rigidity and consistency. The 4-pad spring-centered race disc is engineered to effectively dampen torsional vibrations, resulting in quieter operation while maintaining reliability even in extreme environments. The spring retainers utilize wraparound spring windows and thicker stampings, which provide enhanced support and reduce stress concentrations, ultimately increasing strength and reliability.
For detailed installation instructions, CLICK HERE.
This kit is confirmed to fit the Nissan 300ZX models from 1990 to 1996.
Other Part Numbers:
ACT #actNX6-HDG4
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1990-1996 Nissan 300ZX |
300ZX | 1990-1996 |

If you've added boost, tuned for more power, or simply want better throttle control, then your stock clutch won't cut it. That?s where ACT (Advanced Clutch Technology) comes in delivering high-performance clutch kits and flywheels designed for real drivers who push their builds on the street, strip, or track.
ACT?s lineup includes everything from daily driver friendly HD kits to hardcore twin disc setups for serious horsepower. Whether you?re launching hard in a WRX, drifting in a 370Z, or canyon carving in an M3, ACT gives you the torque capacity and engagement you need without sacrificing drivability.
Why ACT? Because Power Without Control Is Useless.ACT doesn?t just make universal performance parts ? they build complete, vehicle-specific clutch solutions for enthusiast favorites. Whether you daily a Civic Type R, track a Subaru STI, drift a 240SX, or drag a Mustang GT, ACT offers the right clutch to match your build goals.
Top supported platforms include the Nissan 350Z/370Z, Toyota Supra A90, Chevy Camaro SS/ZL1, Mitsubishi Evo, Ford Focus RS/ST, and BMW M3/M4 ? each with clutch options tuned to your driving needs.
What ACT Offers:ACT isn?t hype ? it?s proven. Their clutches are SFI-certified, track-tested, and used by racers in drag, time attack, autocross, drift, and rally. But what really matters? They hold power, last longer, and feel right even after hundreds of hard launches or hours of canyon carving.
Whether you're upgrading for more power or replacing a tired OEM clutch, ACT gives you the bite, strength, and feel to drive harder with confidence. No compromises, no excuses just parts that work when it matters.