International Harvester Tractor Serial Number Table- Link Jun 2026
Many F-Series tractors have the plate riveted to the left side of the main frame rail near the engine. 2. The Letter Series (A, B, C, H, M)
Many registries and clubs, such as IHC Collectors, actively maintain databases. Checking your serial number allows you to contribute to the historical record of these magnificent machines. Tips for Using Serial Number Tables Successfully
If the tag is missing and the engine pad is rusty or ground down, you can estimate the age using casting codes. IH cast dates into their parts (blocks, heads, housings) using a letter-number code.
International Harvester manufactured millions of tractors under the Farmall, International, and McCormick-Deering brands. Production changes occurred frequently, often in the middle of a model year. Knowing the exact serial number allows you to: International Harvester Tractor Serial Number Table-
International Harvester produced several distinct "eras" of tractors. Here is a brief look at some of the most collected series and how their serial numbers work. The Farmall "Regular" (1926–1931)
Farmall H serial #157,000 → falls between 1942 (137,000) and 1943 (168,000) → likely a late 1942 or very early 1943 model.
, have the serial number plate on the steering gear housing or frame rail on the right side. : On tractors like the , the plate is often attached to the clutch housing. Engine Block : For models like the Many F-Series tractors have the plate riveted to
Some models stamped the serial number (or an engine serial number) directly onto a raised boss on the engine block. You may need to wire-brush this area to remove years of grease and paint to read the numbers clearly. 3. The Steering Pedestal
Mounted on the left side of the transmission case. Number Series (1958–1980s)
Almost every major cast-iron part on an International Harvester tractor (engine block, axle housings, transmission cases) features a raised, cast-in date code. These codes consist of digits for the month and day, followed by a letter representing the year. Checking your serial number allows you to contribute
[Your Name/AI Assistant] Date: [Current Date] Purpose: Reference for collectors, restorers, and agricultural historians.
Sometimes, the plate may be missing, or the number might be stamped directly into the cast iron component.
Where on the tractor you found any ?
What you are trying to identify?
| Model | Serial Number Start | Year | |-------|--------------------|------| | Farmall 100 | 501 | 1954 | | Farmall 200 | 501 | 1954 | | Farmall 300 | 501 | 1954 | | Farmall 350 | 26001 | 1956 | | Farmall 400 | 501 | 1954 | | Farmall 450 | 25001 | 1956 |




