SKU: CSN233F
Spec RB25/20 Stage 3+ Clutch Kit SN233F 1989-1998 Nissan 240SX S13 S14 RB20 RB25DET R33 Skyline
The Spec RB25/20 Stage 3+ Clutch Kit SN233F provides dependable power handling for RB20DET and RB25DET engines in Nissan 240SX S13 S14 chassis and R33 Skyline GTS25t. Rated at 625 ft/lbs torque this kit manages high horsepower street and track demands with smooth shifts and fast engagement. Drivers benefit from its full face disc design that resists slip under extreme loads.
Key Features
- 625 ft/lbs Torque Capacity: Handles RB25DET builds over 500whp full face disc prevents slip during hard acceleration and sustained power
- 9-inch Full Face Kevlar Disc: 24-spline 1-1/8 inch hub offers progressive engagement and withstands heat up to 1200 degrees F
- Heavy Duty Pressure Plate: Billet steel build delivers high clamp load for reliable grip in drag racing autocross and road course use
- Complete Kit Components: Includes throwout bearing pilot bushing and alignment tool for easy professional level assembly
- SFI 1.2 Certification: Complies with competition safety standards every kit dyno tested at factory for verified performance
Product Notes
- Designed for OEM or lightweight flywheels confirm compatibility before install
- Follow 500 mile break-in with light throttle launches for longest life
- Ships in protective box measuring 14 x 14 x 8 inches product weight 22 lbs
Installation Notes
- Professional installation recommended.
- Resurface flywheel or use new Spec billet flywheel for flat surface
- Torque pressure plate bolts to 22 ft/lbs in crisscross pattern OEM hardware compatible
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1989-1994 | Nissan | 240SX | S13 Base Fastback SE RB20DET RB25DET Swap |
| 1995-1998 | Nissan | 240SX | S14 Base SE Fastback RB20DET RB25DET Swap |
| 1993-1998 | Nissan | Skyline | R33 GTS25t Type M RB25DET |
Why Choose SPEC Clutch?
- 20+ years building clutches for import tuners and racers
- Every kit dyno tested for torque ratings before shipping
- Precision engineered in USA with premium materials for daily and race duty
Frequently Asked Questions
- Q: Will this fit my RB25DET swapped S14 240SX?
A: Yes SN233F bolts directly to RB25DET and RB20DET flywheels in S13 S14 chassis with 24-spline input shaft - Q: What friction material does the disc use?
A: Full face Kevlar material resists glazing and fade during repeated hard launches and high RPM shifts - Q: What is the warranty and install process?
A: Limited lifetime warranty on defects covers material and workmanship professional install advised with flywheel check
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Secure foam lined box 14x14x8 inches
- Weight: 22 lbs
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