The ACT MZ012 pressure plate features ACT's exclusive diaphragm design to increase clamp load and reduce deflection, sized for the 1990-2005 Mazda Miata. Every diaphragm undergoes ACT's four-stage heat-treating process for unparalleled performance, and precision cover stampings provide rigidity and consistency. ACT's Heavy Duty pressure plates increase clamp load by 20 to 50 percent over stock and are recommended for use with a street or race disc.
WarrantyInstallation Instructions
Specifications:
- Pressure Plate Type: ACT Heavy Duty
- Diaphragm: Four-stage heat-treated, exclusive ACT design
- Clamp Load Increase: 20-50% over stock
- Recommended Use: Pair with a street or race disc
- Warranty: 1-year ACT limited warranty
- Part Number: ACTMZ012
Vehicle Applications:
- 1990 Mazda Miata Base
- 1991 Mazda Miata Base
- 1991 Mazda Miata SE
- 1992 Mazda Miata Base
- 1993 Mazda Miata Base
- 1993 Mazda Miata LE
- 1994 Mazda Miata Base
- 1994 Mazda Miata M Edition
- 1995 Mazda Miata Base
- 1995 Mazda Miata M Edition
- 1996 Mazda Miata Base
- 1996 Mazda Miata M Edition
- 1997 Mazda Miata Base
- 1997 Mazda Miata M Edition
- 1997 Mazda Miata STO
- 1999 Mazda Miata 10th Anniversary
- 1999 Mazda Miata Base
- 2000 Mazda Miata Base
- 2000 Mazda Miata LS
- 2000 Mazda Miata SE
- 2001 Mazda Miata Base
- 2001 Mazda Miata LS
- 2001 Mazda Miata SE
- 2002 Mazda Miata Base
- 2002 Mazda Miata LS
- 2002 Mazda Miata SE
- 2003 Mazda Miata Base
- 2003 Mazda Miata LS
- 2003 Mazda Miata SE
- 2003 Mazda Miata Shinsen
- 2004 Mazda Miata Base
- 2004 Mazda Miata LS
- 2004 Mazda Miata Mazdaspeed
- 2005 Mazda Miata Base
- 2005 Mazda Miata LS
- 2005 Mazda Miata Mazdaspeed
FAQ
Does the ACT MZ012 include a clutch disc?
No, this is a pressure plate only. A separate street or race disc is required to complete the clutch.
How much does this pressure plate increase clamp load?
ACT's Heavy Duty pressure plates increase clamp load by 20 to 50 percent over the stock pressure plate.
What discs pair well with the MZ012?
ACT recommends pairing this Heavy Duty pressure plate with either a street disc for daily driving or a race disc for track use, depending on the intended use.
Does this pressure plate fit the Mazdaspeed Miata?
Yes, the MZ012 fits the 2004-2005 Mazdaspeed Miata as well as Base, LE, LS, M Edition, SE, Shinsen, and STO trims spanning 1990-2005.

