Engine gasket set for the International Harvester D335, D350, and D370 engine. This engine was used in the TD9 crawler, ID9, WD9, WDR9 tractor, and UD9, IUD9 power units. This engine saw a few changes over the years. The most significant change being going from a protruding sleeve to flush sleeve. We will need to know which version of the engine you have.