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ACT HD/Race Rigid 4 Pad Kit Mitsubishi | Eagle | Hyundai 1979-2002 - MB4-HDR4

Upgrade Your Clutch with the ACT MB4-HDR4 Kit

If you're looking to enhance the performance of your ride, the Advanced Clutch HD/Race Rigid 4 Pad Kit MB4-HDR4 is a top-tier choice. Designed for enthusiasts who demand reliability and responsiveness, this kit features ACT's renowned Heavy Duty pressure plate, which utilizes an exclusive diaphragm design to boost clamp load while reducing deflection. This means you get a clutch that not only lasts longer but also performs better under pressure.

Key Features

  • Light to moderate pedal effort with aggressive engagement for a more connected feel.
  • Enhanced friction life thanks to ACT's unique diaphragm design, though be aware that the rigid setup may increase spline wear.
  • Constructed from high-quality ceramic friction materials for superior heat tolerance and performance.
  • Engineered for race use, ensuring you get the most out of your vehicle's power.
  • Each unit is clamp load tested and dynamically balanced for smooth operation at high RPMs.

Technical Specifications

  • Clutch Disc Diameter: 7.9 in (200 mm)
  • Disc Material: Ceramic
  • Input Spline Quantity: 20
  • Input Shaft Diameter: 0.875 in
  • Product Weight: 10.2 lbs
  • Torque Capacity: 255 ft/lbs
  • Pressure Plate Type: Heavy Duty
  • Release Bearing Included: Yes
  • Grease Included: Yes
  • Alignment Tool Included: Yes

Fitment

The MB4-HDR4 is compatible with a variety of models, making it a versatile choice for many enthusiasts:

  • Dodge Colt (1984-1986)
  • Eagle Summit (1989-1994 & 1996)
  • Eagle Talon (1993-1994)
  • Hyundai Elantra (1992-1993)
  • Hyundai Excel (1990-1994)
  • Hyundai Scoupe (1991-1995)
  • Mitsubishi Cordia (1983-1988)
  • Mitsubishi Eclipse (1990-1994)
  • Mitsubishi Mirage (1991-2002)
  • Mitsubishi Precis (1989-1993)
  • Mitsubishi Tredia (1983-1988)
  • Plymouth Arrow (1979-1980)
  • Plymouth Champ (1982)
  • Plymouth Laser (1990-1994)

Installation Instructions

Ready to install? For detailed instructions, CLICK HERE.

Customer Feedback

Here’s what some owners are saying:

  • "Installed the MB4-HDR4 on my 1992 Mitsubishi Eclipse, and the difference is night and day. The shifts are quicker, and I can feel the power transfer much better!"
  • "As a Dodge Colt owner, I was looking for a clutch that could handle my modifications. This kit has exceeded my expectations with its responsiveness and durability."

Upgrade your clutch system with the ACT MB4-HDR4 kit and experience the difference in performance and reliability. Perfect for those who take their driving seriously!

Other Part Numbers:
ACT #actMB4-HDR4

Proposition 65

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

Vehicle Make/Model
Dodge Colt 1984-1986 Vista
Dodge Colt 1984-1986 DL
Dodge Colt 1984-1986 E
Dodge Colt 1985-1986 Premier
Dodge Colt 1986 Vista Custom
Eagle Summit 1989-1994, 1996 DL
Eagle Summit 1989-1990, 1992-1994, 1996 LX
Eagle Summit 1990-1994 ES
Eagle Summit 1991-1994, 1996 Base
Eagle Summit 1994, 1996 ESi
Eagle Talon 1993-1994 DL
Eagle Talon 1993-1994 ES
Eagle Talon 1993-1994 TSi
Hyundai Elantra 1992-1993 GLS
Hyundai Elantra 1992-1993 Base
Hyundai Elantra 1992-1993 GL
Hyundai Excel 1990-1991 GLS
Hyundai Excel 1990-1994 GL
Hyundai Excel 1990-1994 Base
Hyundai Excel 1991-1994 GS
Hyundai Excel 1991-1992 L
Hyundai Excel 1992-1994 CXL
Hyundai Excel 1993-1994 CX
Hyundai Scoupe 1991-1995 Base
Hyundai Scoupe 1991-1995 LS
Hyundai Scoupe 1993-1995 Turbo
Mitsubishi Cordia 1983-1988 L
Mitsubishi Cordia 1983-1984 Base
Mitsubishi Cordia 1983-1984 LS
Mitsubishi Cordia 1984-1988 Turbo
Mitsubishi Eclipse 1990-1994 Base
Mitsubishi Eclipse 1990-1994 GS
Mitsubishi Eclipse 1990-1994 GSX
Mitsubishi Eclipse 1990-1994 GST
Mitsubishi Mirage 1991-1992 VL
Mitsubishi Mirage 1991-2002 LS
Mitsubishi Mirage 1991-1992 GS
Mitsubishi Mirage 1991-1992 SE
Mitsubishi Mirage 1991-1992 Base
Mitsubishi Mirage 1993-1996 S
Mitsubishi Mirage 1993-1995, 2001 ES
Mitsubishi Mirage 1997-2002 DE
Mitsubishi Precis 1989-1993 Base
Mitsubishi Precis 1989 LS
Mitsubishi Precis 1989-1991 RS
Mitsubishi Tredia 1983-1984, 1986-1988 LS
Mitsubishi Tredia 1983-1986 Base
Mitsubishi Tredia 1983-1988 L
Mitsubishi Tredia 1984-1988 Turbo
Plymouth Arrow 1976-1980 GS
Plymouth Arrow 1976-1980 Base
Plymouth Arrow 1976-1980 GT
Plymouth Champ 1979-1982 Custom
Plymouth Champ 1979-1982 Base
Plymouth Champ 1982 Deluxe
Plymouth Laser 1990-1994 RS
Plymouth Laser 1990-1994 Base
Plymouth Sapporo 1978-1979 Base

ACT Banner

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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