Action Clutch ACR-3797 Stage 4 Single Disc Ceramic Clutch Kit (1MD)

The Action Clutch ACR-3797 Stage 4 (1MD) Single Disc Clutch Kit is engineered for performance-driven applications including drag racing, road racing, and drift racing. Delivering 170% increased holding capacity over the factory clutch kit, this Stage 4 assembly is built to handle the demands of dedicated race vehicles and heavy-duty track use.

At the heart of this kit is an Unsprung MIBA Ceramic 6-Puck Rigid Disc paired with a Single Diaphragm Heavy-Duty Pressure Plate. The unsprung hub design is extremely lightweight, delivering instant, aggressive engagement and rapid heat dissipation. Reinforced drive straps and 4-stage heat-treated diaphragm springs ensure outstanding durability under sustained high-performance conditions.

Key Features:

• 170% increased holding capacity over the factory clutch kit
• Single diaphragm heavy-duty pressure plate with reinforced drive straps
• MIBA Ceramic unsprung 6-puck rigid disc for rapid, aggressive engagement
• Lightweight unsprung hub for instant clutch response
• 4-stage heat-treated diaphragm springs for consistent clamping force
• American-grade rivets and ductile iron friction surface on clutch cover
• 100% dynamically spin balanced
• SFI Spec 1.1 certified
• Light pedal feel with aggressive engagement characteristics
• Manufactured Lifetime Warranty

What's Included:

• Single Diaphragm HD Pressure Plate
• MIBA Ceramic Unsprung 6-Puck Clutch Disc
• Premium Throwout / Release Bearing
• Pilot Bearing (when applicable)
• Clutch Alignment Tool

Break-In Requirements: 500 street miles — keep RPM under 4,500, no more than half-throttle, no boost (if applicable). Proper break-in is required to retain product warranty and ensure longevity and maximum holding capacity.

Note: Some clutch chatter is normal with ceramic disc clutch kits and will minimize after proper break-in. Not recommended for daily street driving. Intended for race and heavy-duty track use applications.