ACT replacement clutch discs for the ACT SB10 clutch kits for 2004-2020 STi models. Replacement discs can be swapped into any SB10 ACT clutch kit. Sold individually, price is for one disc.
Vehicle Fitment:
For ACT SB10 Clutch Kits
2004-2020 Subaru STi
Part Number: | Disc: | Use: |
3000503 | Street Sprung Organic Disc 240mm |
Street and race Smooth engagement, quicker shifts, OE to mild gear rattle |
6240618 | 6 Pad Sprung Ceramic Disc 240mm |
High HP street or race. Aggressive engagement, quick shifts, mild to moderate gear rattle |
6240018 | 6 Pad Solid Ceramic Disc 240mm |
High HP street or race. Aggressive engagement, quick shifts, mild to moderate gear rattle |
4240518 | 4 Pad Sprung Ceramic Disc 240mm |
Race use only Aggressive engagement, quick shifts, OE to mild gear rattle |
4240018 | 4 Pad Solid Ceramic Disc 240mm |
Race use only Aggressive engagement, quickest shifts, increased gear rattle |
Sprung Street:
Performance street disc and the most popular disc purchased. It features premium organic materials with high copper content for better heat transfer. Performance street discs allow for quicker shifting and smooth engagement. These discs feature a reduced marcel for faster shift action to complement ACT pressure plates. ACT spring-centered assemblies use bushings and cone springs similar to factory clutch discs. This creates frictional dampening, which improves clutch life and reduces noise. Quiet operation with increased strength and reliability.
Sprung 6-Puck:
6-pad spring-centered race discs 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 6-pad, spring-centered disc is recommended for larger clutch sizes to absorb more heat and for smoother engagement.
Solid 6-Puck:
6-pad rigid race disc made with high quality ceramic friction materials. The disc engagement is harsher, but shifting is faster. The race disc features top grade rivets to securely fasten the part together. The rivet design and materials are carefully selected for maximum strength. The 6-pad rigid race disc is recommended for larger clutch sizes to absorb more heat and for smoother engagement.
Sprung 4-Puck:
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.
Solid 4-Puck:
4-pad rigid race disc made with high quality, ceramic friction materials. The disc engagement is harsher, but shifting is faster. The race disc features top grade rivets to securely fasten the part together. The rivet design and materials are carefully selected for maximum strength. The 4-pad rigid race disc is well-suited for the smaller disc sizes in smaller engines.
Discounts:
We are sorry, but discount codes are not available for ACT products.