RB370 – Release Bearing

ACT, short for Advanced Clutch Technology, is an American clutch maker. Its range here covers the whole clutch assembly: complete kits, clutch discs, pressure plates, flywheels, release bearings and the small parts in between.

The discs show how the range is organised. Street discs come sprung or rigid, and race discs use four-pad or six-pad designs, again sprung or rigid. Pressure plates are listed as Heavy Duty or Xtreme and the XACT flywheels as Streetlite or Prolite, and twin-disc and Mod-Twin kits are listed as well.

The listings favour Japanese cars. Honda leads, followed by Mazda, Ford, Toyota, Nissan, Mitsubishi and Subaru. The Honda Civic and CRX, Mazda RX-7 and Toyota Supra (A80) have especially wide coverage.

Elsewhere in the Transmission & Clutch section, other brands supply shifters and linkages. ACT is the brand for the clutch itself. Discs, pressure plates and flywheels are also sold on their own, so you can replace a single worn part without buying a full kit.