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  See more parts for Ford Probe
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ACT HD/Perf Street Sprung Kit Mazda | Ford 1992-2003 - Z66-HDSS

The ACT Z66-HDSS is a standout in the world of performance clutches, designed for those who demand reliability and responsiveness in their vehicles. This Heavy Duty pressure plate paired with a premium street disc ensures that your driving experience is both smooth and powerful. Customers have praised its ability to handle both daily driving and spirited weekend outings without missing a beat.

One of the key features of the Z66-HDSS is ACT's exclusive diaphragm design. This innovative design increases clamp load while minimizing deflection, which ultimately extends the life of your clutch. The pressure plates undergo a rigorous four-stage heat-treating process, ensuring they can withstand the rigors of high-performance driving. Users have noted a noticeable improvement in clutch engagement, saying it feels “solid and responsive,” which makes for a more engaging drive.

The Performance Street disc is crafted from high-quality organic materials, featuring a high copper content that enhances heat transfer and reduces fade. This means you can push your vehicle without worrying about the clutch giving out under pressure. The steel-backed lining adds to its durability, making it a favorite among both street and occasional track enthusiasts. As one happy customer put it, “It’s like night and day compared to my old setup!”

Features:

  • Light to moderate pedal effort for a comfortable driving experience
  • Longer friction life due to the advanced diaphragm design
  • Engineered for precision, ensuring smooth engagement and reliability
  • Suitable for both street and racing applications
  • 100% clamp load tested for high RPM reliability

Specifications:

  • Clutch Master Cylinder Included: No
  • Grease Included: Yes
  • Grade Type: Performance
  • Pilot Bushing Included: No
  • Pressure Plate Type: Heavy Duty
  • Release Bearing Included: Yes
  • Clutch Disc Diameter: 8.8 in (224 mm)
  • Disc Material: Organic
  • Input Spline Quantity: 22
  • Input Shaft Diameter: 0.9375 in
  • Alignment Tool Included: Yes
  • Disc Type: Sprung
  • Pressure Plate Bolts Included: No
  • Clutch Slave Cylinder Included: No
  • Flywheel Bolts Included: No
  • Pilot Bearing Included: Yes
  • Product Weight: 13.8 lbs
  • Torque Capacity: 275 ft/lbs
  • Torque Capacity Over OE: 0.46

Fitment:

  • Ford Probe 1992-1997
  • Mazda 626 1993-2002
  • Mazda MX-6 1993-1997
  • Mazda Protege 2001-2003
  • Mazda Protege5 2002-2003

Whether you're upgrading your daily driver or prepping for a weekend track day, the ACT Z66-HDSS offers the performance and durability you need. With its thoughtful engineering and premium materials, this clutch kit is sure to impress.

Other Part Numbers:
ACT #actZ66-HDSS

Proposition 65

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

Vehicle
1992-1997
 Ford Probe
1993-2002
 Mazda 626
1993-1997
 Mazda MX-6
2001-2003
 Mazda Protege
2002-2003
 Mazda Protege5

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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