Spec Clutch SF484 Stage 4 Clutch Kit - Carbon Semi-Metallic Puck Disc

The Spec Clutch SF484 Stage 4 Clutch Kit is a high-performance racing clutch engineered for heavily modified engines demanding maximum holding power and instantaneous engagement. As the solid hub evolution of the Stage 3, the SF484 is purpose-built for motorsport applications where every ounce of drivetrain efficiency counts.

At the core of the Stage 4 design is a solid 8-rivet hub with a heat-treated disc and carrier assembly for exceptional strength and durability under extreme torque loads. The kit pairs a high-clamp pressure plate with a carbon semi-metallic friction disc available in 3, 4, or 6-puck configurations — use the 3-puck for the lightest rotating mass, the 6-puck for the smoothest engagement, or the 4-puck as an ideal performance compromise between the two.

Key Features:

• High-clamp performance pressure plate for maximum grip
• Carbon semi-metallic friction material for superior heat resistance and torque capacity
• Solid 8-rivet rigid hub — heat treated for strength and durability
• Available in 3, 4, or 6-puck disc configuration
• Includes release bearing and installation tool kit
• Manufactured in the USA to strict tolerances

Intended Use: Drag Racing, Drifting, Road Racing, Rally, Pulling, Circle Track

Due to its rigid hub design, the SF484 is not recommended for street use. This kit is intended for race-dedicated builds where aggressive, instantaneous clutch engagement and reduced rotating mass are the priority. All Spec Clutch products are backed by a limited 120-day warranty against defects in materials and workmanship.