Clutch Masters 02-06 Acura RSX 2.0L Type-S/02-11 Civic SI 2.0L FX250 Organic/Fiber Disc Clutch Kit
The Clutch Masters 08037-HR0F is the FX250 hybrid clutch kit for the six-speed K20: the 2002-2006 Acura RSX Type-S, the 2006-2011 Honda Civic Si and the 2006-2011 Acura CSX Type-S. It is the step for a K20 owner with bolt-ons, a header and a tune who has worn out the factory clutch or felt it slip at the top of third, and wants a kit that still drives like stock in traffic. No pucks, no chatter warning, just more clamp and a tougher lining.
These cars use a hydraulic clutch with the slave cylinder on the transmission pushing the release fork. The FX250 combines the Clutch Masters Power Plus I heavy-duty pressure plate with a full-face hybrid disc: Fiber Tough on the pressure plate face and steel-backed organic on the flywheel face. Clutch Masters rates it at a 110 percent holding increase over stock.
A Marcel spring wafer between the linings and a sprung hub keep engagement progressive, which is the difference between this kit and the six-puck ceramic FX400 08037-HRC6 meant for boosted K20s. If you want a little more holding while still keeping a full-face disc, the FX300 Kevlar kit 08037-HRTZ sits one step above this one. The FX250 kit ships with a release bearing and alignment tool.
K20 six-speeds are also known for hard shifts and grinding when the clutch hydraulics are weak, which is not a worn disc. Check for a soft pedal and a wet slave cylinder first. If the pedal is firm, do a fourth-gear full-throttle test at low RPM and watch for the tach running ahead of speed. Our slipping diagnosis guide covers the full process, and rebuild vs replace helps if the gearbox itself is in question.
Clutch Masters lists 08037-HR0F for the 2002-2006 Acura RSX Type-S 2.0L six-speed, the 2006-2011 Honda Civic Si 2.0L six-speed and the 2006-2011 Acura CSX Type-S six-speed. Our listing title says 02-11 Civic Si, but the 2002-2005 Civic Si has a five-speed and is not on the Clutch Masters list for this part number, and neither is the base RSX five-speed. If you own one of those, or are not sure which gearbox you have, send us your year and VIN before ordering. More K20 kits are in our clutch and rebuild kit collection.
| Brand | Clutch Masters |
| Part number | 08037-HR0F |
| Fits | Clutch Masters 02-06 Acura RSX 2.0L Type-S/02-11 Civic SI 2.0L FX250 Organic/Fiber Disc Clutch Kit |
| Vehicle fitment | Acura Rsx (2002-2006) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
Clutch Masters lists this kit only for the 2006-2011 Civic Si six-speed, the 2002-2006 RSX Type-S six-speed and the 2006-2011 CSX Type-S. The 2002-2005 Civic Si is a five-speed and is not on that list. Send us your VIN if you are unsure.
The base RSX uses a five-speed and is not listed by Clutch Masters for this part number. It is for the Type-S six-speed.
The FX250 is a hybrid organic and Fiber Tough disc rated at 110 percent holding with Marcel and a sprung hub, so it drives like stock. The FX300 Kevlar holds more, and the FX400 six-puck ceramic is for boosted cars and can chatter.
If it is in good condition, have it resurfaced. Replace it if it is cracked or heat-checked deeply. A bad flywheel face causes chatter even with a new clutch.
The K20 six-speed takes Honda MTF. Bleed the clutch hydraulics with the brake fluid shown on the reservoir cap.
