ACT 16-17 Mazda MX-5 Miata ND HD/Perf Street Sprung Clutch Kit
The early ND MX-5 Miata is now old enough that original clutches are wearing out, especially on cars that see autocross, track days or a turbo or supercharger kit. If your 2016 or 2017 Miata slips on the highway in sixth, judders pulling away, or the pedal now engages near the top, the ACT ZM10-HDSS replaces the full assembly: pressure plate, disc, bearings and a lightweight flywheel.
ACT built this kit as a 225 mm upgrade for the first-generation ND 2.0L. The MZ029 Heavy Duty pressure plate raises clamp load, and the 3000212 Performance Street disc uses a sprung hub with organic, high-copper facing for smooth street engagement. ACT rates the package at 312 ft-lb at the crank, 46 percent above the factory clutch, which leaves real margin for intake, header and tune builds as well as mild forced induction.
ACT states the clutch must be used with its own flywheel, and the 600870 XACT Streetlite is in the box. That flywheel is chromoly steel at 12.3 lb with a 225 mm friction face, lighter than the factory part, so the 2.0L picks up revs faster between shifts. The complete kit weighs 27.8 lb per ACT.
Rule out the hydraulics first. A low reservoir, air in the line or a weeping slave cylinder causes drag and grinding that feels like a bad clutch. Then load-test it: in a high gear at low rpm, roll into full throttle and watch whether rpm and speed rise together. Check under the car for oil at the engine-to-transmission joint, since an oil-soaked disc will slip again unless the leak is fixed. Our slipping diagnosis guide covers these checks in more detail, and rebuild vs replace helps if the gearbox itself is also suspect.
This listing is for the 2016-2017 Mazda MX-5 Miata ND 2.0L six-speed, including the 2017 RF. ACT's application chart also lists the 2018 model year with the same kit; if you have a 2018, check your VIN with us before ordering. It does not fit 2019-and-later cars, which use a revised flywheel and pressure plate; those owners need the ACT ZM14-HDSS. Earlier NA, NB and NC Miatas use different clutches entirely.
If you want a near-stock pedal and a lower budget instead of a performance upgrade, the Exedy 10814 Stage 1 kit is the OE-style option for the same car.
| Brand | ACT |
| Part number | ZM10-HDSS |
| Fits | ACT 16-17 Mazda MX-5 Miata ND HD/Perf Street Sprung Clutch Kit |
| Vehicle fitment | Mazda Mx-5 Miata Nd Hd/Perf (2016-2017) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. The 2019-and-later 2.0L uses a different flywheel and pressure plate. ACT's kit for those cars is the ZM14-HDSS.
Yes. ACT's chart lists the 2017 and 2018 MX-5 Miata RF along with the soft top in every trim with the 2.0L.
No. ACT states the ZM10-HDSS must be used with its own flywheel, and the 600870 XACT Streetlite is included in the kit.
ACT rates it at 312 ft-lb at the crank, 46 percent over stock. Compare that number with your build's torque, and step up to a race disc if you will exceed it.
Use fresh fluid of the type printed on the reservoir cap and bleed until the pedal is firm with no air.
