Part Number: ZM4-HDR4

Description: ACT HD/Race Rigid 4 Pad Clutch Kit

Product Weight (lbs.): 12.0

Torque Capacity (ft/lbs.): 359

Torque Capacity Over OE: 71%

Pressure Plate Type: Heavy Duty

Clutch Disc Diameter: 224

Input Spline Quantity: 23

Input Shaft Diameter: 1

Disc Material: Ceramic

Pilot Bushing Included: No

Release Bearing Included: Yes

Alignment Tool Included: Yes

Part Fitment Requirement: 6 speed applications only. Pressure plate bolts included (M8-1.25 x 20mm).

Grease Included: Yes

Pilot Bearing Included: Yes

Disc Type Sprung Solid: Solid

Clutch Slave Cylinder Included: No

Clutch Master Cylinder Included: No

Grade Type: Performance

Pressure Plate Bolts Included: Yes

Flywheel Bolts Included: No

Fitment: 06-15 Mazda Miata 6spd

Details:

ZM4-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.

Features and Benefits

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