Spec Clutch ST553 Stage 3 Performance Clutch Kit

The Spec Clutch ST553 Stage 3 Clutch Kit is engineered for heavily modified street and race engines that demand high torque capacity without sacrificing daily drivability. Designed to deliver confident, comfortable pedal feel with quick, aggressive engagement, this kit performs consistently under both low and high stress conditions.

At the heart of the ST553 is a carbon semi-metallic puck disc paired with a high-clamp pressure plate — a combination that has established SPEC's Stage 3 as the benchmark puck clutch for drivability, service life, and torque holding capacity. The disc features a double-sprung hub with spring cover reliefs for added flexibility, and all hub components are heat treated for enhanced strength and durability.

Kit Includes:

• High-clamp performance pressure plate
• Carbon semi-metallic puck friction disc (6-puck standard; 4-puck available by request)
• High-torque sprung hub and disc assembly
• Release bearing
• Installation tool kit

Ideal Driving Applications:

• Street performance
• Drag racing
• Drift
• Road racing
• Rallye
• Pulling
• Autocross

SPEC clutches are manufactured in the United States and are SFI approved, meeting the strictest quality and safety standards in the industry. The Stage 3 is recommended for street/strip use and represents the ideal step up for any build requiring aggressive engagement and proven torque capacity beyond what Stages 1 and 2 can deliver.