The ZX4-HDSS kit features ACT's most popular Heavy Duty pressure plate paired with its most popular street disc. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection, and maximize clutch life, with all diaphragms undergoing a four-stage heat-treating process. ACT's Performance Street discs feature premium organic materials with high copper content for better heat transfer and steel-backed lining for greater burst strength and durability. These discs have reduced marcel for faster shift action to complement ACT pressure plates, with increased strength and reliability.
WarrantyInstallation Instructions
Specifications
- Kit Type: HD Pressure Plate / Performance Street Disc
- Disc Material: Organic, high copper content, steel-backed lining
- Included Components: Pressure plate, disc
- Warranty: 1-year ACT limited warranty
- Part Number: ZX4-HDSS
Vehicle Applications
| Year | Make | Model | Trim |
|---|---|---|---|
| 2007 | Mazda | 3 | Mazdaspeed |
| 2008 | Mazda | 3 | Mazdaspeed |
| 2009 | Mazda | 3 | Mazdaspeed |
| 2010 | Mazda | 3 | Mazdaspeed |
| 2011 | Mazda | 3 | Mazdaspeed |
| 2012 | Mazda | 3 | Mazdaspeed |
| 2013 | Mazda | 3 | Mazdaspeed |
| 2006 | Mazda | 6 | Mazdaspeed |
| 2007 | Mazda | 6 | Mazdaspeed |
Frequently Asked Questions
What does reduced marcel mean for the ZX4-HDSS disc?
Reduced marcel gives the disc a flatter cushioning profile, which produces faster, crisper shift action when paired with the ACT HD pressure plate.
Which Mazdaspeed models does the ZX4-HDSS fit?
It is confirmed for the Mazdaspeed 3 (2007-2013) and Mazdaspeed 6 (2006-2007), as listed in the Vehicle Applications table.
What warranty applies to the ZX4-HDSS?
ACT backs the ZX4-HDSS with a one-year limited warranty.
Does the ZX4-HDSS include a flywheel?
No, this kit includes the pressure plate and disc only; the flywheel is not included.
