: Identifies the chassis or machine type (e.g., "259" for an IH 5488). Code (Next 3 digits) : Specifies the configuration or trim. Country (Letter) : "U" typically stands for the United States. Actual Serial (Last digits)
Data source.
Later Kind/Code style tags (explained below) always include a single-letter country code:
This table covers row-crop and utility tractors. For:
If you find the code stamped on your Farmall H axle housing, the part was cast on August 22, 1949 . This tells you your tractor is either a late 1949 model or an early 1950 model. International Harvester Tractor Serial Number Table-
Before consulting a serial number table, you must find the physical identification tag on your tractor. Location varies heavily by model era. Early Models (1920s–1940s)
Look on the main transmission case housing or the engine block wall on the left side.
Serial number prefixes reveal factory options like High-Crop chassis, Row-Crop configurations, and alternative fuel engines (distillate or kerosene).
First-year, last-year, or low-production runs hold higher collector value. : Identifies the chassis or machine type (e
The serial number can be found on various locations on the tractor, including:
Production records after 1952 are more complex, with overlapping serial number prefixes. Always confirm specifications with official literature for later production years. The total number of Farmall M tractors produced is 270,140.
: A serial number is often stamped on a machined flat surface above the oil filler or near the #1 spark plug. Casting Dates
#InternationalHarvester #Farmall #VintageTractors #TractorRestoration #IHRedPower Actual Serial (Last digits) Data source
Here are the most common locations based on the era of the tractor: Early Models (1920s–1930s)
Often stamped on the left side of the tractor frame or main case.
For those who prefer a physical reference, several key printed books compile this data. The most prominent is Guy Fay's which covers every wheeled tractor from the 1921 McCormick-Deering 15-30 up to the last models, including the Farmall 650. This book includes all known serial numbers, engine codes, and specification data.