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ZM12-HDG6 - HD/Race Sprung 6 Pad

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Note: 225mm upgrade. Must use ACT 600870 flywheel (not included in kit) or a modified OE flywheel. 600870 flywheel is compatible with the OE clutch kit as well as an ACT clutch kit. Flywheel sold separately from clutch kits.

was $617.00 Special Price $524.45
Availability: Out of stock
SKU
ZM12-HDG6

Specifications

Specifications
Item Description HD/Race Sprung 6 Pad
Product Weight (lbs.) 27.4
Torque Capacity (ft/lbs.) 399
Torque Capacity Over OE 87%
Disc Material Ceramic
Clutch Disc Diameter (Inches) 8.8
Clutch Disc Diameter (Millimeters) 224
Input Shaft Diameter (inches) 0.9375
Pressure Plate Type Heavy Duty
Warranty 12 Months (view details)

Description

ZM12-HDG6 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 6-pad, spring-centered race disc features a spring-center to properly damp torsional vibrations and resist failure under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 6-pad, spring-centered race disc, engagement is harsher, but shifting is faster. The 6-pad, spring-centered disc is recommended for larger clutch sizes to absorb more heat.

Description
Feel Light to moderate pedal effort, aggressive engagement, OE to mild gear rattle
Life Moderate friction life, extended by ACT's exclusive diaphragm design
Quality Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance
Recommended Use Recommended for high horsepower street or race use
ACT Difference 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

Vehicle Fitment

Fitment Info
Application Engine
2016 Mazda MX-5 Miata Club 2.0 L4 GAS FI 1998cc
2016 Mazda MX-5 Miata GS 2.0 L4 GAS FI 1998cc
2016 Mazda MX-5 Miata GT 2.0 L4 GAS FI 1998cc
2016 Mazda MX-5 Miata GX 2.0 L4 GAS FI 1998cc
2016 Mazda MX-5 Miata Grand Touring 2.0 L4 GAS FI 1998cc
2016 Mazda MX-5 Miata Sport 2.0 L4 GAS FI 1998cc
2017 Mazda MX-5 Miata Club 2.0 L4 GAS FI 1998cc
2017 Mazda MX-5 Miata GS 2.0 L4 GAS FI 1998cc
2017 Mazda MX-5 Miata GT 2.0 L4 GAS FI 1998cc
2017 Mazda MX-5 Miata GX 2.0 L4 GAS FI 1998cc
2017 Mazda MX-5 Miata Grand Touring 2.0 L4 GAS FI 1998cc
2017 Mazda MX-5 Miata RF Club 2.0 L4 GAS FI 1998cc
2017 Mazda MX-5 Miata RF GS 2.0 L4 GAS FI 1998cc
2017 Mazda MX-5 Miata RF GT 2.0 L4 GAS FI 1998cc
2017 Mazda MX-5 Miata RF Grand Touring 2.0 L4 GAS FI 1998cc
2017 Mazda MX-5 Miata Sport 2.0 L4 GAS FI 1998cc
2018 Mazda MX-5 Miata Club 2.0 L4 GAS FI 1998cc
2018 Mazda MX-5 Miata GS 2.0 L4 GAS FI 1998cc
2018 Mazda MX-5 Miata GT 2.0 L4 GAS FI 1998cc
2018 Mazda MX-5 Miata GX 2.0 L4 GAS FI 1998cc
2018 Mazda MX-5 Miata Grand Touring 2.0 L4 GAS FI 1998cc
2018 Mazda MX-5 Miata RF Club 2.0 L4 GAS FI 1998cc
2018 Mazda MX-5 Miata RF GS 2.0 L4 GAS FI 1998cc
2018 Mazda MX-5 Miata RF GT 2.0 L4 GAS FI 1998cc
2018 Mazda MX-5 Miata RF Grand Touring 2.0 L4 GAS FI 1998cc
2018 Mazda MX-5 Miata Sport 2.0 L4 GAS FI 1998cc

Frequently Asked Questions

Are ACT clutches balanced?
Yes! All ACT clutch assemblies are computer spin balanced to within .25 oz-in to guarantee help smooth operation across the entire RPM range. For comparison, stock production clutches are typically balanced to within .50 oz-in. Lower is definitely better!
Will an ACT clutch increase pedal effort?
ACT pressure plates are specifically designed to handle high torque applications. With ACT's durable design, expect an increase in pedal effort between 15-40% (Heavy Duty) and 50-80% (Xtreme), depending on the application. Clutches developed with less pedal effort often result in a lack of longevity, torque capacity and/or engagement quality.
Do ACT clutches require a break in period?
For organic street discs, we recommend breaking in the clutch for 300-500 miles with mild engagement, such as stop-and-go city driving prior to racing or spirited driving. ACT race discs usually only require a few hard slips to lap in the surfaces prior to normal driving or racing. Do not overheat the clutch during the break in period, as this can result in friction surfaces fusing together, hot spots, and friction surface glazing.
Are ACT clutches repairable or rebuildable?
In some situations, rebuilds or repairs may be possible (see warranty), after inspection of the clutch assembly. Please contact our technical department for further information. Because of special modifications, we do not recommend servicing by a general clutch rebuilder.
How much does an ACT clutch weigh?
The weight of the ACT clutch assembly will usually be the same as a stock OEM clutch assembly.