ACT Z66-HDR4 Heavy Duty/Race Rigid 4 Pad Kit

The ACT Z66-HDR4 is a top-tier clutch kit designed for those who demand performance and reliability. This kit features ACT's renowned Heavy Duty pressure plate, which utilizes an exclusive diaphragm design to enhance clamp load while minimizing deflection. This means you can expect a longer clutch life without compromising on performance.

One of the standout features of the Z66-HDR4 is its four-stage heat-treating process, which ensures the diaphragm can withstand extreme conditions. Customers have noted that the precision cover stampings provide the rigidity and consistency needed for high-stress situations. Feedback from users often highlights the noticeable improvement in shifting speed and responsiveness, making it a favorite among racing enthusiasts.

Features and Benefits

• Light to moderate pedal effort with aggressive engagement for a sportier feel.
• Moderate friction life, enhanced by ACT's innovative diaphragm design—though users should be aware that a rigid design may lead to increased spline wear.
• Constructed with select ceramic friction materials, this kit boasts high heat tolerance and exceptional performance.
• Engineered specifically for race applications, ensuring you get the best out of your vehicle.
• Each unit is 100% clamp load tested and dynamically balanced for reliable high RPM operation.

Technical 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: Ceramic
• Input Spline Quantity: 22
• Input Shaft Diameter: 0.9375 in
• Alignment Tool Included: Yes
• Disc Type: Solid
• Pressure Plate Bolts Included: No
• Clutch Slave Cylinder Included: No
• Flywheel Bolts Included: No
• Pilot Bearing Included: Yes
• Product Weight: 12.3 lbs
• Torque Capacity: 355 ft/lbs
• Torque Capacity Over OE: 0.87

Fitment

The Z66-HDR4 is compatible with the following vehicles:

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

Installation Instructions

For detailed installation instructions, CLICK HERE.

Overall, the ACT Z66-HDR4 is a solid choice for anyone looking to enhance their vehicle's performance. Users rave about the improved responsiveness and durability, making it a worthwhile investment for racing and performance driving.