ACT 17-21 / 23-24 Honda Civic Type R / Acura Integra Type S HD/Race Sprung 6 Pad Clutch Kit
A tuned K20C1 makes the factory Civic Type R clutch the weak link quickly. Owners with an intake, downpipe and a tune usually feel it first as rpm flare in third or fourth gear at full boost, or a clutch that holds in the morning and slips after a track session. ACT part number HC12-HDG6 is the Heavy Duty Race Sprung 6 Pad kit for the FK8 and FL5 Civic Type R and the Acura Integra Type S, and it comes with ACT's own flywheel so the whole rotating assembly is replaced in one job.
ACT rates HC12-HDG6 at 527 ft-lb of torque capacity measured at the crank, which ACT lists as 71 percent over the original clutch. The extra holding power comes from ACT's Heavy Duty pressure plate, whose diaphragm is built for higher clamp load and less deflection, and every diaphragm is heat treated in four stages. The disc is a 240 mm (9.4 inch) six-pad ceramic race disc with a sprung center for the 1.0325 inch input shaft. The springs damp torsional vibration, but a puck disc still engages much more abruptly than an organic disc. ACT describes the feel as light to moderate pedal effort, aggressive engagement and OE to mild gear rattle, and recommends it for high horsepower street or race use.
ACT's kit contents list for this part number:
ACT notes the kit must be used with the ACT flywheel that comes in the box. The complete kit weighs 31.8 lb.
Make sure the problem is the friction parts and not the hydraulics. A soft pedal, a pedal that sticks down, or gears that grind only when the fluid is hot point to air or a failing master or slave cylinder, so bleed the system first. A true slip test is a steady third or fourth gear pull from low rpm with the boost coming in: if the tach climbs faster than the car accelerates, the clutch is slipping. Our slipping diagnosis guide walks through separating slip from other drivetrain faults, and flare versus slip explains what each one feels like.
Our listing is cataloged for the 2017-2021 Honda Civic Type R. ACT's own chart for HC12-HDG6 goes further and lists the 2023-2026 Civic Type R and the 2024-2026 Acura Integra Type S, all with the 2.0L turbo K20C engine and the six-speed manual. The Civic Si and the non-Type S Integra use different clutches and are not covered. If you have any doubt, send your year and VIN before ordering and we will match it. For a daily driven car that sees fewer track days, the organic disc version, ACT HC12-HDSS, uses the same pressure plate with a smoother street disc.
Puck race discs only need a few controlled slips to lap in, according to ACT, but avoid overheating the clutch in the first drives. Expect more pedal effort than stock; ACT lists 15 to 40 percent more for its Heavy Duty plates. If you also want backup tools on hand, a universal alignment tool kit is useful for future service. Higher power builds can also compare the XClutch Stage 2R before choosing.
| Brand | ACT |
| Part number | HC12-HDG6 |
| Fits | ACT 17-21 / 23-24 Honda Civic Type R / Acura Integra Type S HD/Race Sprung 6 Pad Clutch Kit |
| Vehicle fitment | Honda Civic Type R (2017-2021) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
ACT's chart lists it for 2017-2021 and 2023-2026 Civic Type R and 2024-2026 Integra Type S with the K20C turbo engine. Our listing is cataloged for 2017-2021, so send your year and VIN if you want us to confirm a newer car.
Yes. The kit includes the ACT 601200 XACT Streetlite flywheel and its bolts, and ACT notes the kit must be used with that flywheel.
ACT rates HC12-HDG6 at 527 ft-lb at the crank, 71 percent over the original clutch.
It can be driven on the street, but engagement is aggressive and takeoffs need more care. For mostly street use with occasional track days the HC12-HDSS organic disc kit is the smoother choice.
The kit already includes the pressure plate, disc, flywheel, release bearing, pilot bearing and alignment tool. Inspect the fork and pivot, and bleed the hydraulics with fresh fluid when the job is done.
ACT says race discs usually need only a few hard slips to lap in the surfaces. Do not overheat the clutch during the first drives.
