Product Description: Crankshaft Seal, Rear Crankshaft Seal, Camshaft Bearing Set (4), Upper Gasket Set, and Lower GasketSet without Seals. Fits Case-IH models: 453, 766, and 886. 6 CYL, DIESEL STD BORE:3-7/8" CUPPED HEAD PISTON S/N is stamped on LH side of engine on pad to the front of the oil filter base