ACT 1989 Nissan 240SX HD/Race Sprung 6 Pad Clutch Kit
The ACT NX1-HDG6 is the kit for a KA24-powered Nissan 240SX that now makes enough power or sees enough hard launches to burn up a stock or organic clutch. It is listed here for the 1989 240SX, and ACT's chart also covers the 1990 car and the 1995 to 1998 S14. Typical buyers are drifting or track-day owners with a turbo KA, a slipping clutch in third and fourth under load, or a disc that glazes after every event. ACT rates this combination at 350 ft-lb at the crank, about 97 percent more than the factory clutch.
In the 240SX the clutch sits between the KA24 flywheel and the five-speed manual, and the pressure plate's clamp load is what keeps the disc from slipping when torque spikes. The NX1-HDG6 pairs ACT's N023 heavy duty pressure plate, which raises clamp load over stock, with the 6224206 sprung six-pad ceramic disc. The 224 mm disc keeps the factory 1 inch input shaft spline. Ceramic pads hold heat far better than organic material, and the sprung hub soaks up driveline shock so the gearbox and diff see less of a hit on clutch kicks. The price of that grip is engagement: six-pad ceramic bites quickly and can chatter if you slip it in traffic, so this is a race-leaning kit.
Check that the hydraulics are healthy first: a sticking slave or a soft master cylinder can mimic both slipping and drag. Our slipping diagnosis guide lays out the high-gear load test, and the clutch slipping guide covers oil contamination from a leaking rear main or input seal, which will ruin a new disc if it is not fixed. If the car runs a stock engine and sees street use only, look at a street kit instead; our clutch kit buyers guide explains how to match the kit to how the car is driven.
ACT lists the NX1-HDG6 for the 1989 and 1990 Nissan 240SX (SE and XE) with the SOHC KA24E, and the 1995 through 1998 240SX (Base, SE and LE) with the DOHC KA24DE. It also covers several older Nissan L-series and Z applications. ACT does not list it for the 1991 to 1994 240SX, which uses a different kit, so check your build date. Engine-swapped cars (SR20DET, RB) need a different kit altogether. If you are unsure, send us the year and VIN before ordering. Other 240SX parts are in the rebuild kits section.
| Brand | ACT |
| Part number | NX1-HDG6 |
| Fits | ACT 1989 Nissan 240SX HD/Race Sprung 6 Pad Clutch Kit |
| Vehicle fitment | Nissan 240Sx Hd/Race Sprung 6 (1989) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. ACT lists it for 1989-1990 KA24E cars and 1995-1998 KA24DE cars only. The 1991-1994 240SX uses a different ACT part number.
It will work, but a six-pad ceramic disc engages abruptly and can chatter in stop-and-go traffic. ACT treats it as a race-oriented kit. A full-face street disc is easier to live with if the car is mostly on the road.
ACT rates the NX1-HDG6 at 350 ft-lb measured at the crank, roughly 97 percent over the factory clutch.
The N023 heavy duty pressure plate, the 6224206 sprung six-pad disc, an RB016 release bearing, an AT01 alignment tool and a PB1012 pilot bushing.
At minimum it must be resurfaced. Ceramic discs are hard on a glazed or uneven flywheel, so many owners replace it with a lighter chromoly unit at the same time.
