Cummins 6.7L ISB, QSB Camshaft, 3979506

replaces: 3979506, 4896421, 3954099

Our camshafts deliver the quality and reliability you come to expect from a trusted industry leader. These camshafts are made with premium quality materials to ensure strength and durability. If you are replacing your camshaft we highly recommend you also replace your valve lifters.