WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.The ACT PO3-HDR4 clutch kit is engineered for race track applications where quick gear changes and high heat tolerance are required. By pairing the Heavy Duty pressure plate with a rigid 4 pad ceramic race disc, this system handles the abuse of high RPM launches and aggressive track use. Designed specifically for the manual transmission Porsche 911 Carrera, this setup trades daily street comfort for rapid shifting speeds and maximum mechanical holding power.
Vehicle Fitment for ACT PO3-HDR4
This clutch kit fits 1999 to 2001 Porsche 911 Carrera and Carrera 4 models equipped with the 3.4L 6-cylinder engine. See the Vehicle Fitment table for full year-by-year fitment. For any fitment or compatibility questions, please email Sales@xlr8.com, our team is happy to help confirm fit for your specific vehicle.
Performance Highlights
- Torque Capacity: 670 ft/lbs
- Torque Capacity Over OE: 74% clamp load increase
- Disc Design: 4 pad rigid race solid disc
- Recommended Use: Race use only
Key Features and Benefits
- Four stage heat treated diaphragm ensures long term clamp load stability and minimal deflection.
- Rigid lightweight 4 pad ceramic disc enables fast shifts in demanding race conditions.
- Precision stamped cover provides maximum rigidity and consistent clutch pedal stroke.
- Chrome-moly hub is heat treated for wear resistance and spline longevity.
- Backed by the industry leading one year manufacturer warranty.
Specifications
- Input Shaft Diameter: 1 in
- Input Spline Quantity: 23
- Clutch Disc Diameter: 240 mm (9.4 in)
- Disc Material: Ceramic
- Pressure Plate Type: Heavy Duty
- Disc Type: Solid
- Product Weight: 14.1 lbs
- Pilot Bearing Included: Yes
- Release Bearing Included: Yes
- Alignment Tool Included: Yes
What's in the Box
- Heavy Duty Pressure Plate
- 4 Pad Rigid Ceramic Race Disc
- Release Bearing
- Pilot Bearing
- Alignment Tool
- Grease Pack
Installation
Installation requires professional mechanic skills and proper transmission removal tools. Expect light to moderate clutch pedal effort, aggressive lockup engagement, and noticeable gear rattle transmission noise. For detailed alignment and torque steps, refer to the official instructions. ACT General Installation Instructions (PDF)
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