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  See more parts for Toyota 4Runner
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ACT HD/Race Rigid 4 Pad Kit Toyota Supra | Celica | 4Runner | Pickup | Cressida 1981-1988 - TS1-HDR4

ACT TS1-HDR4 Heavy Duty Clutch Kit

If you're looking to elevate your clutch performance, the ACT TS1-HDR4 Heavy Duty/Race Rigid 4 Pad Kit is engineered to meet the demands of serious drivers. Designed for specific Toyota models, this kit features ACT's renowned Heavy Duty pressure plate that utilizes an exclusive diaphragm design, enhancing clamp load while minimizing deflection for extended clutch life. The four-stage heat-treating process ensures this component can withstand the rigors of high-performance driving.

Fitment

  • Toyota 4Runner (1985-1987)
  • Toyota Celica (1981-1985)
  • Toyota Cressida (1984-1987)
  • Toyota Pickup (1985-1987)
  • Toyota Supra (1986-1988)

Key Features

  • Light to moderate pedal effort with aggressive engagement for quicker shifts.
  • Moderate friction life, enhanced by ACT's exclusive diaphragm design; note that the rigid setup may increase spline wear.
  • Constructed with high-quality ceramic friction materials for exceptional heat tolerance and performance.
  • 100% clamp load tested and dynamically balanced for reliable operation at high RPMs.
  • Recommended for race applications only, ensuring you get the best out of your setup.

Technical Specifications

  • Clutch Master Cylinder Included: No
  • Grease Included: Yes
  • Pressure Plate Type: Heavy Duty
  • Release Bearing Included: Yes
  • Clutch Disc Diameter: 9.3 in (236 mm)
  • Disc Material: Ceramic
  • Input Spline Quantity: 21
  • Input Shaft Diameter: 1.125 in
  • Alignment Tool Included: Yes
  • Disc Type: Solid
  • Product Weight: 15.2 lbs
  • Torque Capacity: 365 ft/lbs (0.69 over OE)

Real-World Insights

Owners of the Toyota Supra (1986-1988) have reported that after installing the TS1-HDR4, they noticed significantly faster shifts and a more connected feel during spirited driving. One 4Runner enthusiast noted, "The engagement is definitely more aggressive, but it’s a night-and-day difference in how quickly I can change gears on the trail." This clutch kit is not just a part; it's an upgrade that transforms your driving experience.

Installation Instructions

  • For detailed installation instructions, CLICK HERE.

Other Part Numbers:
ACT #actTS1-HDR4

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
1985-1987
 Toyota 4Runner
1981-1985
 Toyota Celica
1984-1987
 Toyota Cressida
1985-1987
 Toyota Pickup
1986-1988
 Toyota Supra

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ACT ? Advanced Clutch Technology | Clutch Kits & Flywheels Built to Handle Real Power

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.
  • Hold More Power Engineered to handle turbo, supercharger, and high-compression builds
  • Faster Engagement Stronger pressure plates for better bite off the line
  • Better Pedal Feel Balanced response without going full race-car stiff
  • Reduced Rotational Mass Lightweight flywheels improve rev-matching and response
  • No Guesswork Direct-fit applications, no fabbing, no hassle
ACT Clutch Kits and Flywheels Fit the Cars Enthusiasts Build

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:
  • Performance Clutch Kits From HD street kits to twin-disc race systems
  • Clutch Discs 6-puck, full-face, rigid or sprung to match your style
  • Pressure Plates Heavy-duty options that increase clamp load without sacrificing control
  • Chromoly Lightweight Flywheels Quicker revs, smoother shifts, and less drivetrain stress
  • Complete Hardware Kits Everything you need for a proper install
Performance Tested. Driver Approved.

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.

ACT warrants all products to be free of defects in materials and workmanship for normal use and service for a period of one (1) year from retail purchase. Written notice must be immediately given to ACT within the warranty period. We require a copy of the purchase receipt showing the unit was purchased from an Authorized Dealer or Advanced Clutch Technology directly to verify the product is under warranty. Products purchased used do not carry a warranty. This warranty is to the original purchaser and is non-transferable. All non-warranty items are subject to a $50 inspection bench test fee.

ACT reserves the right to examine any part returned for warranty claim to determine, to ACT's satisfaction, whether the material or workmanship of the part does not conform to this limited warranty. ACT's obligation under this warranty shall be limited to repairing, replacing, or crediting, at its option, any part which is deemed covered by ACT. No labor, lift or storage charges will be reimbursed for any reason. Damage to ACT's parts resulting from misuse, improper use, or abuse shall void this limited warranty. Failure to follow ACT's installation instructions and the vehicle manufacturers installation procedures and specifications shall void this limited warranty.

ACT undertakes no responsibility for the quality of the goods except as otherwise provided in this contract. ACT assumes no responsibility that the goods will be fit for any particular purpose for which you may be buying these goods, except as otherwise provided in the contract. ACT shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part subject to this warranty.

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