Get your semi prepped with Expertise Built In with reliable air brake performance, with the OTR 15" / 16.5" Full Brake Camshaft Repair Kit for Meritor Q / Q+ Brake. By tightening the internal components of a brake drum, this repair kit allows the camshaft to spread the brake shoes apart and generate friction to slow a vehicle. Built with precisely-engineered accessories to guard against wear and deliver long-term dependability. FleetPride is your First Click in Heavy Duty .