SKU: 66382030535

ZM4-HDR4 - HD/Race Rigid 4 Pad

Sale price$246.60 Regular price$274.00
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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

ZM4-HDR4 - HD/Race Rigid 4 PadSpecifications: HD Race Rigid 4 Pad Clutch Kit Item Description: HD Race Rigid 4 Pad Product Weight (lbs.): 12 Torque Capacity (ft lbs.): 359 Torque Capacity Over OE: 71% Disc Material: Ceramic Clutch Disc Diameter (Inches): 8. 8 Clutch Disc Diameter (Millimeters): 224 Input Shaft Diameter (inches): 1 Pressure Plate Type: Heavy Duty Warranty: 12 Months Description: The ZM4 HDR4 kit by ACT includes their most popular Heavy Duty pressure plate matched

Specifications: HD/Race Rigid 4 Pad Clutch Kit

  • Item Description: HD/Race Rigid 4 Pad
  • Product Weight (lbs.): 12
  • Torque Capacity (ft/lbs.): 359
  • Torque Capacity Over OE: 71%
  • Disc Material: Ceramic
  • Clutch Disc Diameter (Inches): 8.8
  • Clutch Disc Diameter (Millimeters): 224
  • Input Shaft Diameter (inches): 1
  • Pressure Plate Type: Heavy Duty
  • Warranty: 12 Months

Description: The ZM4-HDR4 kit by ACT includes their most popular Heavy Duty pressure plate matched with a 4-pad rigid race disc. ACT Heavy Duty pressure plates utilize an exclusive diaphragm design to increase clamp load, diminish deflection, and extend clutch life. Each diaphragm undergoes a four-stage heat-treating process for exceptional performance. Precision cover stampings ensure rigidity and consistency.

ACT's 4-pad rigid race discs are constructed with high-quality ceramic friction materials and a chrome-moly hub heat-treated for strength and durability. The lightweight, rigid design facilitates quicker shifts and smooth, trouble-free service. Although engagement with the 4-pad rigid race disc is harsher, shifting is faster, making it well-suited for smaller disc sizes in smaller engines.

Key Characteristics:

  • Feel: Light to moderate pedal effort, aggressive engagement, increased gear rattle.
  • Life: Moderate friction life, extended by ACT's exclusive diaphragm design, rigid design may increase spline wear.
  • Quality: Carefully engineered, precisely assembled, accurately balanced, using select ceramic friction materials for high heat tolerance and maximum performance.

Recommended Use: Recommended for race use only, particularly suited for applications where quick, aggressive shifts are necessary.

ACT Difference: 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability.

Vehicle Fitment: Compatible with various Mazda MX-5 Miata models from 2006 to 2015, including Grand Touring, Sport, Touring, GT, Special Edition, Club, and GS. All models equipped with the 2.0 L4 GAS FI 2000cc engine.

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: 66382030535

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Lake Worth, US
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Pawtucket, US
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Reviewed in the United States on April 18, 2026
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