Clutch Disc

4228218 is a 4-pad spring-centered race disc made with high quality, ceramic friction materials. The engagement is harsher, but shifting is faster. The heavy duty torsional dampening springs are stronger, in most cases, than standard springs and are provided in the best sizes and spring rates to suit the application. The race disc features a heat-treated spring steel drive plate and is well-suited for the smaller disc sizes in smaller engines.

Additional Information

4 Pad Sprung Race Disc

Part Type

Transmission Clutch Friction Plate

• "Excellence in Performance", backed by the best one-year warranty in the industry!

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Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Clutch Disc, Race, Ceramic, 1.000 in.-24-Spline, 8.976 in. Disc, Subaru, 2.5L, Each

ACT race clutch discs are available in three distinct styles--choose the options that best suit your application. Spring-centered discs are the most popular and feature reduced driveline shock and spline wear with quieter operation. Rigid-hub versions offer improved durability but increase gear noise and spline wear. For either of those hub designs, you can choose six pads for better heat management and engagement, or four pads for the quickest shifting. Sintered iron discs offer the highest torque capacity and ultra-high heat capacity. They're designed for cars using clutch-less shifting or drag racing transmissions.

Additional product details:
• Premium ceramic friction materials provide high-heat tolerance, high coefficient of friction, and low wear rates
• Carefully broached splines provide exact fit onto the transmission input shaft for long spline life and better clutch release
• Heavy-duty torsional dampening springs are provided in the best sizes and spring rates to help reduce noise
• Drive plates are made of high-carbon steel; heat-treated and black zinc coated to resist bending, cracking, fatigue, and rusting
• Certified to SFI specifications