HENDRICKSON S-31964 Non Cam Tube Overhaul Kit (Triaxle) - 16.5" and 12.25" Brake Size

Manufacturer

HENDRICKSON

Features & Benefits

• Corrects camshaft misalignment to ensure shoes expand evenly against the drum
• Supplies high-durability cam bearings, spider seals, and retaining rings for a complete system refresh
• Compatible with Hendrickson TRLAXLE and similar non-cam tube trailer axles
• Stabilizes the S-cam by eliminating the lateral and vertical play that causes brake chatter
• Features hardened washers and spline retaining rings designed for the high-torque demands of heavy hauling
• Minimizes the risk of "cam-over" failures by restoring the original mechanical geometry of the brake spider
• Bundles all essential shims and seals into a single part number to streamline shop workflow

Hendrickson Major Overhaul S-Cam Kit

Rebuilding the camshaft support system on non-cam tube trailer axles requires the specific tolerances found in the Hendrickson Major Overhaul S-Cam Kit. This set is engineered to service both 16.5-inch and 12.25-inch brake configurations by replacing the worn bearings and seals that lead to sloppy S-cam rotation. When bushings degrade, the resulting mechanical play causes uneven shoe engagement and premature lining wear; this kit neutralizes that movement to prevent the "cam-over" effect. Each Hendrickson S-31964 package contains the cam bearing assembly, spider bushings, and necessary retaining hardware to bring the braking interface back to factory standards. Opting for these genuine components during a brake service protects the spider assembly from long-term damage and keeps heavy-duty vocational trailers stopping reliably under load.

Kit Includes:

• (2) Washer, S-Cam (Outer)
• (4) Seal, S-Cam Spider Bush
• (2) Bush, S-Cam Spider
• (2) Washer, Hardened
• (2) Snap Ring - S-Cam, 1.625"
• (2) Bearing Assy - S-Cam, 1.625"
• (8) Bolt, Flange - 5/16-18 x 1"
• (12) Shim, S-Cam - 1.5 x 2.25 x 0.06"
• (2) Washer, Hardened - 1.531 x 2.25 x 0.09"
• (2) Washer, Hardened - 1.28 x 2.25 x 0.09"
• (4) Retaining Ring, Spline
• (8) Nut, Flanged - 5/16-18