The C057L is a left-hand S-camshaft designed for 16½″ trailer drum brake systems (e.g., Eaton ES, Meritor Q-style). It features a 1½″ diameter, 28-spline shaft, a forged and hardened S-head, and a journal crafted to OEM wear and fit specifications. Precisely machined for reliable braking performance and longevity in heavy-duty fleet operations.
