The ACT ZM8-HDSS Heavy Duty Performance Street Sprung Clutch Kit pairs ACT's most popular Heavy Duty pressure plate with ACT's most popular street disc for the Mazda RX-8 rotary application. The Heavy Duty pressure plate uses an exclusive diaphragm design to increase clamp load and reduce deflection, with every diaphragm undergoing ACT's four-stage heat-treating process and precision cover stampings for rigidity and consistency. The Performance Street disc uses premium organic friction material with high copper content for improved heat transfer and a steel-backed lining for greater burst strength and durability, with reduced marcel for faster shift action alongside the Heavy Duty pressure plate.
WarrantyInstallation Instructions
Specifications:
- Pressure Plate: ACT Heavy Duty, four-stage heat-treated diaphragm
- Disc: Performance Street, organic friction material, high copper content
- Disc Backing: Steel-backed lining, reduced marcel for faster shift action
- Includes: Pressure plate, street disc, alignment tool (pilot bearing and release bearing included on some applications)
- Recommended Use: Street and performance driving
- Part Number: ZM8-HDSS
Vehicle Applications:
- 2004 Mazda RX-8 Base
- 2005 Mazda RX-8 Base
- 2005 Mazda RX-8 Shinka
- 2006 Mazda RX-8 Base
- 2007 Mazda RX-8 Base
- 2008 Mazda RX-8 40th Anniversary Edition
- 2008 Mazda RX-8 Grand Touring
- 2008 Mazda RX-8 Sport
- 2008 Mazda RX-8 Touring
- 2009 Mazda RX-8 Grand Touring
- 2009 Mazda RX-8 R3
- 2009 Mazda RX-8 Sport
- 2009 Mazda RX-8 Touring
- 2010 Mazda RX-8 Grand Touring
- 2010 Mazda RX-8 R3
- 2010 Mazda RX-8 Sport
- 2011 Mazda RX-8 Grand Touring
- 2011 Mazda RX-8 R3
- 2011 Mazda RX-8 Sport
Warning: This product can expose you to chemicals including carbon black, glass wool fibers, or silica (in clutch discs), chromium and nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov
FAQ
Is this kit designed for the RX-8's rotary engine?
Yes, the ZM8-HDSS is sized specifically for the Mazda RX-8 rotary application.
Is this kit comfortable for daily driving?
Yes. The Performance Street disc's organic friction material and reduced marcel provide smooth, quieter engagement suited to daily use, paired with the added clamp load of the Heavy Duty pressure plate.
Does the kit include a pilot bearing and release bearing?
Pilot bearing and release bearing are included on applications where the vehicle requires them.
Does this kit fit the 2008 40th Anniversary Edition RX-8?
Yes, the ZM8-HDSS covers the 2008 40th Anniversary Edition along with Base, Grand Touring, R3, Shinka, Sport, and Touring trims across the 2004-2011 fitment range.
