Brand: Advanced Clutch Technology
Manufacturer's Part Number: 4224218
Part Type: Clutch Discs
Product Line: ACT Race Clutch Discs
Automotive Fittings Part Number: ACL-4224218
UPC: 00842385006631
Clutch Usage: Performance
Input Spline Quantity: 24
Input Shaft Diameter: 1.000 in.
Disc Diameter (in.): 8.819 in.
Disc Diameter (mm): 224mm
Disc Material: Ceramic
Disc Style: 4-paddle
Hub Style: Sprung
Quantity: Sold individually.
Description:
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 made of high-carbon steel; heat-treated and black zinc coated to resist bending, cracking, fatigue, and rusting
* Certified to SFI specifications