Introducing the ACT TL1-HDR4 Heavy Duty Clutch Kit, a top-notch solution designed for performance enthusiasts who demand reliability and power. This kit features ACT's renowned Heavy Duty pressure plate, engineered with an exclusive diaphragm design that enhances clamp load while minimizing deflection. This means not only an extended clutch life but also improved performance during those high-stakes moments on the track.
Each diaphragm undergoes a meticulous four-stage heat-treating process, ensuring unparalleled durability. The precision cover stampings offer rigidity and consistency, making this kit a favorite among racers. The 4-pad rigid race discs are crafted from high-quality ceramic friction materials, providing excellent heat tolerance and performance under pressure. The chrome-moly hub is heat-treated to enhance strength and longevity, ensuring that you can push your vehicle to its limits with confidence.
One of the standout features of the TL1-HDR4 is its lightweight, rigid design, which allows for quicker shifts and a smoother driving experience. While the engagement may feel harsher, it leads to faster shifting—a crucial advantage in competitive racing environments. This kit is particularly well-suited for smaller engines, making it a versatile choice for various setups.
"I installed the TL1-HDR4 in my Corolla and noticed an immediate difference in responsiveness. The shifts are crisp, and I feel more connected to the car. Definitely a worthwhile upgrade!" - Mike R.
"This clutch kit has transformed my driving experience. The pedal effort is just right, and the engagement is aggressive, which I love for racing." - Sarah T.
This clutch kit is compatible with the following vehicles:
For detailed installation instructions, please CLICK HERE.
Other Part Numbers:
ACT #actTL1-HDR4
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1980-1981, 1985-1987 Toyota Corolla |
Corolla | 1980-1981, 1985-1987 |

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.