The Hendrickson S-30671-3R or S306713R is a genuine Hendrickson air brake camshaft, an S-Cam in the 1.625 size with 10 splines. An S-cam is the shaft that turns inside a drum brake and pushes the shoes outward against the drum, so its splines and bearing surfaces carry the full braking load. When a cam and its bushings wear, the shoes can sit unevenly against the drum and wear unevenly, and the drum itself can wear out of shape. Call us to confirm proper fit for your suspension. A genuine Hendrickson part from Pro Gear and Transmission.
Features
Air brake camshaft (S-cam), genuine Hendrickson
1.625 S-Cam with 10 splines
Hendrickson part number S-30671-3R
Worn cams and bushings can leave brake shoes seating unevenly in the drum
