The C444BR is a right-hand Q‑Plus S-camshaft designed for 16½″ Meritor/Eaton Q‑Plus drum brake systems on heavy-duty trailers. It features a 1½″ diameter, 28-spline shaft, an induction-hardened forged head, and a dual-groove journal for secure snap-ring retention. Precision-engineered for OEM fit, it enables reliable brake engagement and extended service life