All of our new parts are aftermarket replacements. Compatible with FIAT Engine(s) 238, 8045.05 (Diesel). Compatible with FIAT Tractor(s) 80-66, 80-90, 82-94, 766, 780. Compatible with Ford Tractor(s) 4430. Compatible with Hesston Tractor(s) 80-76, 82-86. Compatible with New Holland Tractor(s) 5635, 6635, 7635. Replaces FIAT OEM Number(s) 1940049, 1930248, 1930811. Replaces Ford OEM Number(s) 1940049, 1930248, 1930811. Contains all gaskets necessary for a complete engine overhaul (Crankshaft seals not included). All States Ag Parts Item No.