... CAT Applications: D5, D6, D7, 12F, 120, 140 Include: valve guide& valve seat Engine Parts CEP supplies a full line of engine ... , Pistons, Piston Pins, Piston Rings, Liners, Connecting Rods, Camshafts, Bearings, Valve Train Components, Fuel Injector Nozzles, Gears, Oil pumps, Oil Coolers ... , Starters, Gauges, Exhaust Systems and other popular engine component Cylinder Head for CAT 3306 (OEM: 8N1187)