Introducing the ACT HC4-HDG4, a robust solution for those seeking enhanced performance in their clutch system. This kit features ACT's renowned Heavy Duty pressure plate, designed to deliver superior clamp load while minimizing deflection. The result? A longer-lasting clutch that can withstand the rigors of both street and race applications.
One of the standout features of the HC4-HDG4 is its unique diaphragm design, which undergoes a meticulous four-stage heat treatment process. This ensures not only exceptional performance but also reliability under high-stress conditions. Customers have noted that the engagement feels solid and responsive, making it a favorite among enthusiasts looking to optimize their driving experience.
Users have shared their satisfaction with the HC4-HDG4, highlighting its impressive performance during spirited driving. One customer mentioned, "The engagement is definitely on the firmer side, but it allows for quicker shifts, which is exactly what I was looking for!"
This clutch kit is compatible with:
For those looking to enhance their vehicle's performance, the ACT HC4-HDG4 is an excellent choice that combines durability with precision engineering. Ready to take your driving experience to the next level?
Other Part Numbers:
ACT #actHC4-HDG4
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1989-1991 Honda CR-X |
CR-X | 1989-1991 |
|
1989-1991 Honda Civic |
Civic | 1989-1991 |

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.