Product Details: Update your semi with reliable air brake performance, with the Hendrickson 12.5" / 16.5" Full Camshaft Repair Kit that ensures you're Ready for the Road Ahead™. With several components that seal and tighten an internal brake drum, this repair kit allows the camshaft to spread the brake shoes apart and generate friction to slow a vehicle. Manufactured with precisely-engineered accessories to prevent wear and offer long-term dependability. FleetPride is your First Click in Heavy Duty®.