Clutch Masters 89-98 Nissan 240SX SRDET Eng. & Trans. / 89-UP Nissan Silvia SRDET Eng. & Trans. All
Clutch Masters 06144-HDC6 is the FX400 six-puck clutch for the SR20DET with its own SR transmission, the combination found in Silvia S13, S14 and S15 cars and in the many 1989-1998 Nissan 240SX chassis that have been swapped from the KA24 to an SR20DET drivetrain. It is meant for the turbo SR that has been turned up with a larger turbo, injectors and a tune, and is now slipping a stock or stage 1 clutch in third and fourth, or burning through organic discs at drift events.
The FX400 system pairs Clutch Masters' Power Plus I high-leverage, heavy-duty pressure plate with a sprung ceramic disc. Leverage on the diaphragm raises clamp load without making the pedal unreasonable, and the ceramic buttons hold far more heat than an organic facing, which matters on an SR that is clutch-kicked lap after lap. Clutch Masters rates the FX400 family at a 170 percent increase in holding capacity over stock.
This 6-puck version is the more aggressive of the two FX400 discs. Its ceramic pads are riveted solid, with no marcel cushion between the linings, so engagement is quick and Clutch Masters warns it may chatter slightly in first and reverse. The sprung hub adds damping that a rigid race disc lacks, so the car can still be driven on the street, but this is a build clutch rather than a commuter clutch. Clutch Masters also states that ceramic discs are never recommended for stock or near-stock cars. If the car sees mostly street miles, the 8-puck FX400 HDCL kit keeps the cushion and engages more smoothly.
The kit includes the pressure plate, the sprung 6-puck disc, a release bearing, a pilot bearing where the application uses one, an alignment tool and an instruction card. Shipping weight is 17 lb. No flywheel is included.
An SR that slips is not always a worn disc. Bleed the clutch hydraulics and check the slave cylinder, since a weak slave or a pedal that does not return fully can hold the plate partly released. Look for engine oil from the rear main seal or transmission oil from the input seal at the bellhousing; contamination will ruin any new disc. Then do a controlled full-boost pull in fourth from low rpm and watch whether engine speed climbs ahead of road speed. Our slipping diagnosis guide explains that road test, and the flare versus slip guide helps separate clutch slip from other drivetrain faults.
Clutch Masters lists 06144-HDC6 for:
Our listing extends that to the 1989-1998 Nissan 240SX when it carries the SR20DET engine and SR transmission. It is not the clutch for a 240SX still running the KA24E or KA24DE with the factory KA gearbox; those cars use a different kit. Swapped cars vary, so confirm what is actually bolted together: the engine, the transmission, and the flywheel the clutch will mount on. If you are not sure what came with your swap, send us the chassis year and VIN plus a photo of the transmission tag and we will check before you order.
Comparing a clutch job with other drivetrain repairs on a high-mileage car? See our breakdown of manual versus automatic repair cost.
| Brand | Clutch Masters |
| Part number | 06144-HDC6 |
| Fits | Clutch Masters 89-98 Nissan 240SX SRDET Eng. & Trans. / 89-UP Nissan Silvia SRDET Eng. & Trans. All |
| Vehicle fitment | Nissan 240Sx Srdet Eng. & (1989-1998) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. This kit is for the SR20DET engine with its SR transmission. A 240SX still using the KA24E or KA24DE and the KA gearbox needs a different clutch.
Yes, Clutch Masters lists 1999-2002 Silvia SR20DET Spec R 6-speed as well as 1989-1998 Silvia SR20DET with the SR transmission.
It can be driven on the street thanks to the sprung hub, but engagement is quick and it may chatter in first and reverse. Clutch Masters does not recommend ceramic discs for stock or near-stock cars; the 8-puck FX400 is the smoother choice.
Pressure plate, sprung 6-puck ceramic disc, release bearing, pilot bearing where applicable, alignment tool and instructions. A flywheel is sold separately.
Resurface or replace the flywheel, replace the pilot bearing, check the slave cylinder, fork and pivot, flush the clutch fluid and fix any rear main seal leak.
