ACT 19-25 Mazda MX-5 Miata HD/Race Sprung 4 Pad Clutch Kit w/ Flywheel
The ACT ZM14-HDG4 is a Heavy Duty Race Sprung 4 Pad Clutch Kit for the 2019–2026 Mazda MX-5 Miata with the 2.0L engine. ACT rates it at 399 ft-lbs of torque at the crank, 87% more than the stock clutch. ACT recommends it for high horsepower street or race use.
ACT's own diaphragm design adds clamp load, limits deflection and helps the clutch last longer. Each diaphragm spring goes through ACT's four-stage heat-treat process. Precision-stamped covers keep the pressure plate stiff and consistent. The 4-pad sprung race disc uses a spring-damped hub to absorb torsional vibration; engagement is more abrupt than a street disc, but shifts are faster.
Specifications
- Torque capacity: 399 ft-lbs (at the crank)
- Torque capacity over stock: 87%
- Pressure plate type: Heavy Duty
- Disc material: Ceramic
- Disc diameter: 8.8 in (224 mm)
- Input shaft diameter: 0.9375 in
- Weight: 30.3 lb
- Recommended use: Recommended for high horsepower street or race use
- Feel: Light to moderate pedal effort, aggressive engagement, OE to mild gear rattle
Torque capacity is measured at the engine crank.
What's Included
- XACT Streetlite Clutch Flywheel (601330)
- Heavy Duty Clutch Pressure Plate (MZ033)
- 4 Pad Sprung Race Clutch Disc (4224505-1)
- Clutch Pilot Bearing (PB1030)
- Clutch Alignment Tool (AT05)
- Clutch Release Bearing (RB110)
Vehicle Fitment
- 2019–2026 Mazda MX-5 Miata (100th Anniversary Special Edition, 35th Anniversary, Club, GS, GS-P, GT, Grand Touring, RF 100th Anniversary Special Edition, RF Club, RF GS-P, RF GT, RF Grand Touring, Sport) — 2.0L
ACT also lists this part for these non-US models: Euro: 2019–2024 Mazda MX-5. These are not included in the vehicle filters.
Installation Notes
Must be used with ACT flywheel (included in kit). Pressure plate bolts included (M8-1.25 x 20mm).
Confirm engine, transmission and trim before ordering.