Sirco B8684 is a bolt‑on camshaft repair kit for Eaton “EB/ES” 16.50 in drum brake systems using outboard-style (Eaton 1‑5/8 in journal) camshafts. It services two wheel ends and includes bushings, support bushings, seals, washers, and hardware to restore proper camshaft function—equivalent to Eaton OEM R615004 and Euclid E‑2696A kits.
