International Harvester Tractor Serial — Number Table- !!top!!

International Harvester (IH) used several serial number systems over its history, typically utilizing a starting serial number

For larger models like the IH 300 or the "H" and "M" series, look on the transmission or clutch housing. Seat Support: International Harvester Tractor Serial Number Table-

On older models (like the Letter Series), the serial number is often stamped directly into a boss (a flat, raised surface) on the engine block, typically on the left side near the carburetor or magneto. raised surface) on the engine block