| Model | Serial Number Start | Serial Number End | Production Years | | :--- | :--- | :--- | :--- | | | 501 | 53,200 | 1954–1956 | | Farmall 130 | 501 | 22,500 | 1956–1958 | | Farmall 200 | 501 | 24,300 | 1954–1956 | | Farmall 230 | 501 | 12,800 | 1956–1958 | | Farmall 300 | 501 | 47,500 | 1954–1956 | | Farmall 350 | 501 | 18,500 | 1956–1958 | | Farmall 400 | 501 | 36,000 | 1954–1956 | | Farmall 450 | 501 | 16,600 | 1956–1958 |

: A community-driven site where enthusiasts share serial number registries and identification advice. Yesterday's Tractors

Later IH tractors (after 1985) fall under the Case International umbrella, which uses a different, more standardized, and longer serial number format.

Serial numbers are often paired with letter prefixes that denote the specific model. For example, indicates a Farmall M, FC is for a Super C, and FAA designates a Farmall A.

Finding the year of manufacture for an tractor is essential for restoration, maintenance, and purchasing parts. The serial number is your primary tool for this task, but locating and decoding it can vary significantly depending on the model and production era. How to Locate Your Serial Number