ACT Xtreme Clutch Kits are high quality products guaranteeing superior functionality and efficiency! They afford a clamp load increase of 50% to 100% with moderate-to-stiff pedal feel, and many of these units are SFI-certified.

Key Features:

• Spline Size (Inches): 1
• Disc Type: Street Disc
• Spline Count: 23
• Product Weight (lbs.): 14.6
• Torque Capacity (ft./lbs.): 525
• Light to moderate pedal effort, smooth positive engagement, increased gear rattle
• Longer friction life, extended by ACT's exclusive diaphragm design, rigid design may increase spline wear
• Carefully engineered, precisely assembled, accurately balanced, with premium organic friction materials for heat tolerance and reduced fade
• Recommended for street and race use
• 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

PO3-HDSD kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. The ACT performance street rigid-hub discs feature premium organic materials with high copper content for better heat transfer and steel-backed lining for greater burst strength and durability. The chrome-moly hub is heat-treated for strength and durability. Rivet design and materials are carefully selected for maximum strength. These discs are the minimum weight street disc for faster shifts. ACT's street rigid-hub discs provide race-proven performance with street manageability.
Since 1994, Advanced Clutch Technology has specialized in performance clutches and flywheels. All products are made from the highest quality materials and then necessarily tested to ensure they perform to the customers' expectations.

Vehicle Fitment Table

FAQ

Will this fit my vehicle?
Please verify your year, make, model, position, and any fitment notes using the compatibility table above before purchase.

What part number is this?
The listed part number is PO3-HDSD.

Is this product designed for direct replacement?
Yes. This product is intended to match the compatible vehicle applications listed in the fitment table.

Should I confirm fitment before ordering?
Yes. Always compare your original part, position, and vehicle details with the fitment table before ordering.

Common Searches

• HD/Perf Street Rigid for Porsche 911
• PO3-HDSD fitment
• ACT HD/Perf Street Rigid
• 1999–2001 Porsche 911 HD/Perf Street Rigid
• ACT PO3-HDSD replacement