• ACT Heavy Duty Race Rigid 4 Pad Clutch Kit | Mazda Miata (90-93) (ZM1-HDR4)
1 1

ACT Heavy Duty Race Rigid 4 Pad Clutch Kit | Mazda Miata (90-93) (ZM1-HDR4)

ACT Heavy Duty Race Rigid 4 Pad Clutch Kit | Mazda Miata (90-93) (ZM1-HDR4)

ZM1-HDR4

Out of stock

$586.00 USD
$586.00 USD $586.00 USD
kADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

The ACT Heavy Duty Race Rigid 4 Pad Clutch Kit for the Mazda Miata (90-93) is a high-performance clutch upgrade designed for demanding driving conditions. This kit features ACT's most popular Heavy Duty pressure plate, which utilizes an exclusive diaphragm design to increase clamp load, reduce deflection, and extend clutch life. The pressure plate undergoes a four-stage heat-treating process to ensure durability and consistent performance, with precision cover stampings that enhance rigidity. The included 4-pad rigid race disc is constructed with high-quality ceramic friction materials, providing excellent grip and heat resistance for aggressive driving and racing applications.

Designed specifically for 1990-1993 Mazda Miata models, this clutch kit is a direct replacement that offers improved torque capacity and durability. It is ideal for track use, high-performance street driving, or any application requiring a robust clutch solution. The kit is a bolt-on upgrade that maintains compatibility with the stock flywheel and transmission setup, ensuring straightforward installation. Suitable for enthusiasts seeking increased performance and longevity, this clutch kit enhances overall drivability and reliability under high-stress conditions.

Overview

ACT HD/Race Rigid 4 Pad Kit

ZM1-HDR4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. The 4-pad rigid race disc is well-suited for the smaller disc sizes in smaller engines.

Features

  • Part Fitment Requirement: Must be used with factory flywheel.
  • Product Weight (lbs.): 10.3
  • Torque Capacity (ft/lbs.): 250
  • Torque Capacity Over OE: 0.86
  • Pilot Bushing Included: Yes
  • Pressure Plate Type: Heavy Duty
  • Release Bearing Included: Yes
  • Clutch Disc Diameter (in.): 7.9
  • Clutch Disc Diameter (mm): 200
  • Disc Material: Ceramic
  • Input Spline Quantity: 22
  • Input Shaft Diameter (in.): 0.9375
  • Alignment Tool Included: Yes

Applications

  • 1990-1993 Mazda Miata

What's In The Box?

  • Clutch Friction Disc (4200005)
  • Clutch Alignment Tool (AT05)
  • Clutch Pressure Plate (MZ014)
  • Clutch Pilot Bearing (PB1005)
  • Clutch Release Bearing (RB813)

References

Warranty

  • Manufacturer 1 Year Warranty
View full details