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Act

Act

ACT Heavy-Duty Race Clutch Kits ZM12-HDG4 HD/Race Sprung 4 Pad

SKU: ACTZM12-HDG4

Clutch Kits
Act

Act

ACT Heavy-Duty Race Clutch Kits ZM12-HDG4 HD/Race Sprung 4 Pad

SKU: ACTZM12-HDG4

Clutch Kits
A$1,151.79
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

IMPORTANT NOTICE: Must use ACT 600870 flywheel or a modified OE flywheel. 600870 flywheel is compatible with the OE clutch kit as wells as an ACT clutch kit. Torque capacity 399 ft. lbs.

ZM12-HDG4 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 4-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even 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 4-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 4-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.

Part Type

Transmission Clutch Kit

Data: v4.2 - Upd: 2026-10-14 10:16:00

Features

  • "Excellence in Performance", backed by the best one-year warranty in the industry!

Specifications

Product Attributes - Brand
Advanced Clutch Technology
Product Attributes - Manufacturer's Part Number
ZM12-HDG4
Product Attributes - Part Type
Clutch Kits
Product Attributes - Product Line
ACT Heavy-Duty Race Clutch Kits
Product Attributes - UPC
842385018016
Product Attributes - Clutch Usage
Performance
Product Attributes - Clutch Disc Quantity
1
Product Attributes - Flywheel Included
No
Product Attributes - Input Spline Quantity
22
Product Attributes - Input Shaft Diameter
0.938 in.
Product Attributes - Disc Diameter (in.)
8.800 in.
Product Attributes - Disc Diameter (mm)
224mm
Product Attributes - Disc Material
Ceramic
Product Attributes - Disc Style
4-paddle
Product Attributes - Hub Style
Sprung
Product Attributes - Pressure Plate Style
Diaphragm
Product Attributes - Throwout Bearing Included
Yes
Product Attributes - Throwout Bearing Style
Standard
Product Attributes - Alignment Tool Included
Yes
Product Attributes - Pilot Bushing Included
Yes
Product Attributes - Pilot Bushing Material
Steel
Product Attributes - Counterweight Assist
No
Product Attributes - Mounting Hardware Included
Yes
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Must use ACT 600870 flywheel or a modified OE flywheel. 600870 flywheel is compatible with the OE clutch kit as wells as an ACT clutch kit. Torque capacity 399 ft. lbs.

Reference Information

Brand Name/s Act
StreetFX SKU actZM12-HDG4
SFX Item ID 4920358
Supplier Item Code 4920358
Manufacturer SKU ZM12-HDG4
Manufacturer UPC 842385018016
Alternative References ACL-ZM12-HDG4

Compatibility

Application Data
  • MakeMAZDA
    ModelMX-5 MIATA
    SubmodelCLUB
    Beginning Year2016
    Ending Year2018
    Engine TypeL4
    Liter2.0
    CID122
    CC1998
    Engine FamilyMazda 4-cylinder
    Engine Size2.0L/122
    Engine VIN Code7
  • MakeMAZDA
    ModelMX-5 MIATA
    SubmodelGRAND TOURING
    Beginning Year2016
    Ending Year2018
    Engine TypeL4
    Liter2.0
    CID122
    CC1998
    Engine FamilyMazda 4-cylinder
    Engine Size2.0L/122
    Engine VIN Code7
  • MakeMAZDA
    ModelMX-5 MIATA
    SubmodelGS
    Beginning Year2016
    Ending Year2018
    Engine TypeL4
    Liter2.0
    CID122
    CC1998
    Engine FamilyMazda 4-cylinder
    Engine Size2.0L/122
    Engine VIN Code7
  • MakeMAZDA
    ModelMX-5 MIATA
    SubmodelGT
    Beginning Year2016
    Ending Year2018
    Engine TypeL4
    Liter2.0
    CID122
    CC1998
    Engine FamilyMazda 4-cylinder
    Engine Size2.0L/122
    Engine VIN Code7
  • MakeMAZDA
    ModelMX-5 MIATA
    SubmodelGX
    Beginning Year2016
    Ending Year2018
    Engine TypeL4
    Liter2.0
    CID122
    CC1998
    Engine FamilyMazda 4-cylinder
    Engine Size2.0L/122
    Engine VIN Code7
  • MakeMAZDA
    ModelMX-5 MIATA
    SubmodelRF CLUB
    Beginning Year2017
    Ending Year2018
    Engine TypeL4
    Liter2.0
    CID122
    CC1998
    Engine FamilyMazda 4-cylinder
    Engine Size2.0L/122
    Engine VIN Code7
  • MakeMAZDA
    ModelMX-5 MIATA
    SubmodelRF GRAND TOURING
    Beginning Year2017
    Ending Year2018
    Engine TypeL4
    Liter2.0
    CID122
    CC1998
    Engine FamilyMazda 4-cylinder
    Engine Size2.0L/122
    Engine VIN Code7
  • MakeMAZDA
    ModelMX-5 MIATA
    SubmodelRF GS
    Beginning Year2017
    Ending Year2018
    Engine TypeL4
    Liter2.0
    CID122
    CC1998
    Engine FamilyMazda 4-cylinder
    Engine Size2.0L/122
    Engine VIN Code7
  • MakeMAZDA
    ModelMX-5 MIATA
    SubmodelRF GT
    Beginning Year2017
    Ending Year2018
    Engine TypeL4
    Liter2.0
    CID122
    CC1998
    Engine FamilyMazda 4-cylinder
    Engine Size2.0L/122
    Engine VIN Code7
  • MakeMAZDA
    ModelMX-5 MIATA
    SubmodelSPORT
    Beginning Year2016
    Ending Year2018
    Engine TypeL4
    Liter2.0
    CID122
    CC1998
    Engine FamilyMazda 4-cylinder
    Engine Size2.0L/122
    Engine VIN Code7

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