Product Description: New In-Frame Engine Overhaul KIt for DT466B, DTI466B, DT466C, DTI466C CID 6 cyl. turbo dieselengines., Standard Bore: 4.3" Cupped Head Piston. Serial number is stamped on upper left hand sideof engine crankshaft, below intake manifold. Kit Contains: Piston liner kit, connecting rod bearing, upper gasket set, pan gasket. Fits Case-IH engines. 6 CYL TURBO DIESEL STD BORE: 4.3", CUPPED HEAD PISTON S/N is Stamped on Upper LH side of Engine Crankcase below Intake Manifold