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18" S-Cam Length

This category lists Extreme HD Parts components built to the 18″ s-cam length, measuring 18-5/8″ on a 28-spline camshaft. You’ll find individual s-cams and complete s-cam bushing kits with 1-7/8″, 2″, and oversized 2.01″ bores, each in left-hand and right-hand rotation. It helps fleets and brake shops source the right 18″ s-cam assembly for their axle.