OEM: 8N1187 Engine type: 3306PC for CAT Applications: D5, D6, D7, 12F, 120, 140 Include: valve guide& ... engine parts including Cylinder Blocks, Cylinder Heads, Crankshafts, Pistons, Piston Pins, Piston Rings, Liners, Connecting Rods, Camshafts, Bearings, Valve Train Components ... , Exhaust Systems and other popular engine component Cylinder Head for CAT 3306 (OEM: 8N1187)