SKU: 46847259123

Z64-HDG4 - HD/Race Sprung 4 Pad

Sale price$229.05 Regular price$254.50
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

Z64-HDG4 - HD/Race Sprung 4 PadIntroducing the Z64 HDG4 Heavy Duty Race Sprung 4 Pad Clutch Kit by ACT, meticulously engineered to meet the demands of high performance driving. Designed to deliver exceptional performance and reliability, this kit combines ACT's Heavy Duty pressure plate with a 4 pad, spring centered race disc for optimal performance on the street or track. ACT's Heavy Duty pressure plate utilizes an exclusive diaphragm design to increase clamp load, reduce

Introducing the Z64-HDG4 Heavy Duty/Race Sprung 4 Pad Clutch Kit by ACT, meticulously engineered to meet the demands of high-performance driving. Designed to deliver exceptional performance and reliability, this kit combines ACT's Heavy Duty pressure plate with a 4-pad, spring-centered race disc for optimal performance on the street or track.

ACT's Heavy Duty pressure plate utilizes an exclusive diaphragm design to increase clamp load, reduce deflection, and maximize clutch life. Each diaphragm undergoes a four-stage heat-treating process, ensuring unparalleled performance in even the most demanding conditions. Precision cover stampings provide rigidity and consistency for smooth gear transitions.

The 4-pad, spring-centered race disc features a spring-center design to properly damp torsional vibrations, resulting in quieter operation and increased resistance to failure under harsh conditions. ACT spring retainers employ wraparound spring windows and thicker stampings to enhance spring support, reduce stress concentrations, and improve strength and reliability.

Key Features:

  • Heavy Duty pressure plate for increased clamp load and reduced deflection
  • 4-pad, spring-centered race disc for enhanced performance and durability
  • Exclusive diaphragm design for extended clutch life
  • Precision cover stampings for consistent rigidity
  • Spring-centered design to dampen torsional vibrations
  • High-quality ceramic friction materials for maximum heat tolerance

Specifications:

  • Product Weight: 15.7 lbs.
  • Torque Capacity: 420 ft/lbs. (72% over OE)
  • Clutch Disc Diameter: 9.4 inches (240mm)
  • Input Shaft Diameter: 1 inch
  • Pressure Plate Type: Heavy Duty
  • Warranty: 12 Months

Recommended for high horsepower street or race use, the Z64-HDG4 kit undergoes rigorous testing, including 100% clamp load testing and dynamic computer balancing, ensuring reliability even at high RPMs.

Vehicle Fitment:

  • 1988-1992 Mazda 626 Turbo (2.2 L4 GAS FI 2184cc | SOHC | Turbocharged)
  • 1988-1992 Mazda MX-6 GT (2.2 L4 GAS FI 2184cc | SOHC | Turbocharged)
  • 1988 Mazda 929 Base (3.0 V6 GAS FI 2954cc | SOHC)
  • 1989-1991 Ford Probe GT (2.2 L4 GAS FI | SOHC | Turbocharged)

Experience the ACT difference with the Z64-HDG4 Heavy Duty/Race Sprung 4 Pad Clutch Kit - the ultimate choice for enthusiasts seeking uncompromising performance and reliability in their high-performance vehicles.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 46847259123

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Very comfortable, great quality and the price was very good for the quality
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These are great briefs for the price. They fit nicely, are comfortable and hold up wash after wash. I have ordered Wirarpa underwear for my husband and myself for several years.
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Fort Morgan, US
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I recommend them
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I bought it for my 11-year-old son who is 5'4" tall and weighs 124 pounds, and they fit him perfectly. It doesn't roll up and it has good elasticity
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Battle Creek, US
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High quality material, very comfortable.
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Chelsea, US
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The fit is very good, doesn’t feel irregular. Nice comfy fit and feel.
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Reviewed in the United States on April 6, 2026

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