SKU: CSN233H
Spec RB25/20 Stage 2+ Clutch Kit 1989-1999 Nissan 240SX S13/S14 Silvia S13/S14 180SX
This SPEC Stage 2+ clutch kit handles reliable power for RB20DET and RB25DET engine swaps in 1989-1999 Nissan 240SX S13/S14 Silvia S13/S14 and 180SX models. It supports up to 515 ft/lbs torque for track and spirited driving with smooth engagement. Drivers select it for proven durability under high stress.
Key Features
- Full-Face 6-Puck Kevlar Disc: Increases surface area for torque transfer up to 515 ft/lbs with precise control and reduced slippage during aggressive shifts
- High Clamp Load Pressure Plate: Increases holding power over stock for modified engines without excessive pedal effort for consistent performance
- Complete Kit Contents: Includes pressure plate throwout bearing pilot bearing and alignment tool for straightforward assembly and immediate usability
- Single Mass Flywheel Compatible: Works with OEM dual mass or lightweight single mass flywheels to reduce rotational mass and improve throttle response
- Part Number SN233H: Direct bolt-in replacement for RB20DET RB25DET transmissions in S13 S14 chassis
Product Notes
- Designed for street track and autocross use with proper break-in procedure of 500 miles easy driving
- Inspect flywheel condition prior to installation resurfacing may be required for flat smooth surface
- Ships in protective box measuring 14in x 14in x 6in with product weight of 28 lbs
Installation Notes
- Professional installation recommended.
- Flywheel must be resurfaced to 0.005in maximum runout or replaced with SFI-rated single mass flywheel
- Torque pressure plate bolts to 22 ft/lbs in crisscross pattern using included hardware
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1989-1994 | Nissan | 240SX | S13 RB20DET/RB25DET |
| 1995-1998 | Nissan | 240SX | S14 RB20DET/RB25DET |
| 1989-1994 | Nissan | Silvia | S13 RB20DET/RB25DET |
| 1995-1999 | Nissan | Silvia | S14 RB20DET/RB25DET |
| 1989-1996 | Nissan | 180SX | RPS13 RB20DET/RB25DET |
Why Choose SPEC?
- Established leader in motorsport clutches with 20+ years of real-world testing in drag road race and rally
- Manufactured in the USA with premium materials for consistent quality and long service life
- Precision-machined components ensure perfect fitment and operation in demanding RB swap builds
Frequently Asked Questions
- Q: Will this fit my S14 240SX with RB25DET swap?
A: Yes SN233H bolts directly to RB25DET bellhousing and works with stock S14 transmission or upgraded units like CD009 - Q: What material is the clutch disc made from?
A: The disc uses high-temperature resistant Kevlar buttons on a full-face design for superior heat dissipation and grip under load - Q: What warranty coverage is provided?
A: SPEC offers a limited warranty against defects in materials and workmanship contact manufacturer for full terms
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Secure cardboard box 14in x 14in x 6in
- Weight: 28 lbs
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