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Restore Smooth Engagement With a Matched Clutch Package
Competition Clutch 60443-STK combines an organic 250 mm clutch with a matched single mass flywheel for SR20DET powered Nissan applications. The package is designed to restore predictable engagement while supporting up to 266 lb ft of torque through an FS5W71C five speed manual transmission.
Key Features
- Matched Package: The clutch and flywheel supplied with 60443-STK are engineered to operate together and should not be mixed with original equipment counterparts.
- Street Friendly Disc: A sprung organic fiber disc supports progressive engagement and familiar pedal behavior.
- 250 mm Diameter: The larger friction surface provides dependable power transfer for supported SR20DET applications.
- Single Mass Flywheel: The included iron flywheel replaces the original flywheel as part of the complete matched assembly.
- Verified Capacity: The clutch package carries a published torque rating of 266 lb ft.
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 1989 to 1994 | Nissan | 240SX | SR20DET swap |
| 1995 to 1998 | Nissan | 240SX | SR20DET swap |
| 1989 to 1994 | Nissan | Silvia | S13 |
| 1995 to 1998 | Nissan | Silvia | S14 |
| 1991 to 1996 | Infiniti | G20 | Base |
| 1999 to 2002 | Infiniti | G20 | Base |
| 1994 to 1996 | Infiniti | G20 | T |
| 1999 to 2002 | Infiniti | G20 | T |
| 1995 to 1998 | Nissan | 200SX | SE-R |
Confirm engine, transmission, flywheel interface, and swap configuration before ordering. Nissan 240SX applications require an SR20DET drivetrain configuration rather than the factory KA24 clutch arrangement.
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | 60443-STK |
| UPC | 887753961709 |
| Disc Diameter | 250 mm |
| Disc Material | Organic fiber |
| Disc Design | Sprung, full face segmented |
| Clutch Plates | Single |
| Pressure Plate | OEM style |
| Flywheel | Single mass iron flywheel included |
| Torque Rating | 266 lb ft |
| Release Type | Push type throwout bearing |
| Transmission | FS5W71C five speed manual |
| Engine Application | SR20DET |
What's Included
- Organic sprung clutch disc
- OEM style pressure plate
- Single mass iron flywheel
- Push type throwout bearing
- Application matched components for 60443-STK
- Flywheel bolts are not included
About Competition Clutch
Competition Clutch develops replacement and performance clutch systems for street, track, and competition applications. Its White Bunny packages pair a clutch and flywheel as a complete system so the friction surfaces and operating dimensions work together.
Related Parts
FAQ
What is the 60443-STK?
It is a 250 mm stock replacement White Bunny clutch and flywheel package for supported SR20DET applications. The kit uses an organic sprung disc and an OEM style pressure plate for progressive street oriented engagement.
Does this kit fit a factory KA24 Nissan 240SX?
No. The published application is based on an SR20DET engine and FS5W71C five speed manual transmission, so a factory KA24 vehicle requires the appropriate drivetrain conversion and fitment verification.
Can I use this clutch with an original equipment flywheel?
No. White Bunny clutch and flywheel components are designed as a matched package and should not be mixed with original equipment counterparts.
What torque capacity does this clutch support?
The published torque rating is 266 lb ft. Vehicle condition, installation quality, break in, tire grip, and driving style can affect service life.
Is a flywheel included?
Yes. The package includes a single mass iron flywheel matched to the supplied clutch assembly.
Are flywheel bolts included?
No. The retailer application data specifically notes that flywheel bolts are not included, so the correct fasteners must be sourced separately.
What material is used for the clutch disc?
The sprung disc uses an organic fiber friction material with a full face segmented design for smooth engagement.
Is professional installation recommended?
Yes. Correct bellhousing alignment, fastener torque, release system setup, and break in are important for safe operation and clutch life.
Install Instructions
- Confirm that 60443-STK matches the engine, transmission, and vehicle configuration before disassembly.
- Disconnect the battery, raise the vehicle securely, and remove the transmission according to the factory service procedure.
- Inspect the rear main seal, transmission input shaft, release fork, pivot, and hydraulic components for wear or leakage.
- Install the supplied flywheel using the correct separately sourced bolts and the manufacturer specified torque sequence.
- Align the clutch disc and pressure plate, then tighten the pressure plate fasteners evenly to the specified torque.
- Install the throwout bearing and verify smooth release fork movement before reinstalling the transmission.
- Reassemble the drivetrain, bleed the hydraulic system when required, and verify proper pedal operation.
- Follow Competition Clutch break in guidance before aggressive acceleration or high load use.
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