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Act

Act

ACT Heavy-Duty Race Clutch Kits for 2016-2018 MX-5 MIATA - ZM12-HDR4 HD/Race Rigid 4 Pad

SKU: ACTZM12-HDR4

Clutch Kits
Act

Act

ACT Heavy-Duty Race Clutch Kits for 2016-2018 MX-5 MIATA - ZM12-HDR4 HD/Race Rigid 4 Pad

SKU: ACTZM12-HDR4

Clutch Kits
A$1,063.16
Limited Availability from MFR Limited stock available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical orders of this part. This item is not held in our own warehouse, and availability and release timing may vary depending on manufacturer stock movements and processing at the time of ordering.
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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-HDR4 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 rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. The 4-pad rigid race disc is well-suited for the 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-HDR4
Product Attributes - Part Type
Clutch Kits
Product Attributes - Product Line
ACT Heavy-Duty Race Clutch Kits
Product Attributes - UPC
842385018030
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
Solid
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-HDR4
SFX Item ID 4920388
Supplier Item Code 4920388
Manufacturer SKU ZM12-HDR4
Manufacturer UPC 842385018030
Alternative References ACL-ZM12-HDR4, MX-5

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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