Production years
1956-1958
Farmall tractor ยท 1956-1958
Farmall 450 Tractor
The Farmall 450 is a 1956-1958 row-crop tractor with a 281-cubic-inch four-cylinder engine and a 10-speed Torque Amplifier transmission. It is a capable late letter-series Farmall for cultivation, mowing, light tillage, and period-correct utility work.
Engine
International Harvester 281 cu in (4.6 L) four-cylinder
Power
51.3 drawbar hp claimed, gasoline; 46.2 drawbar hp claimed, diesel
Weight, approximate
6,519 lb
Farmall 450 specifications
| Production years | 1956-1958 |
|---|---|
| Engine | International Harvester 281 cu in (4.6 L) four-cylinder |
| Fuel type | Gasoline, diesel, or LP gas |
| Power | 51.3 drawbar hp claimed, gasoline; 46.2 drawbar hp claimed, diesel |
| Transmission | 10-speed partial power shift with Torque Amplifier |
| PTO | 540 rpm transmission PTO; independent PTO optional |
| Weight, approximate | 6,519 lb |
| Hitch | IH Fast Hitch |
What the 450 is used for
The 450 suits farms and collectors needing a traditional two-wheel-drive row-crop tractor for mounted or trailed implements matched to its power and hitch. Its narrow-front or wide-front configuration should be chosen for the intended work and terrain.
It is also a strong choice for parades, shows, and antique tractor events. The available gasoline, diesel, and LP-gas versions are distinct machines, so parts and operating needs should be evaluated by fuel type.
Why the Farmall 450 stands out
The 450 was the final major Farmall row-crop development before the 560, combining the 281-cubic-inch engine with Hydra-Touch hydraulics, Fast Hitch capability, and the Torque Amplifier. Its 10-speed partial power-shift arrangement gives more working-speed choices than the earlier straight-gear Farmalls.
Buying a used Farmall 450
Confirm the tractor's actual fuel version and inspect the Torque Amplifier under load in both direct-drive and reduced-speed positions. Check the Hydra-Touch system, Fast Hitch components if fitted, clutch and brake operation, rear-tire condition, and the serial plate on the left side of the clutch housing; do not assume an independent PTO was installed, because it was optional.
Farmall 450 frequently asked questions
What years was the Farmall 450 built?
Farmall built the 450 from 1956 through 1958.
Did every Farmall 450 have a diesel engine?
No. The 450 was offered with gasoline, diesel, or LP-gas engines.
What transmission does a Farmall 450 use?
It uses a 10-speed partial power-shift transmission with a Torque Amplifier.
Specifications are commonly cited figures for general reference; exact figures vary by year and serial number, so confirm against TractorData.com and the machine's records. Values and prices of used tractors vary by condition and region. Page updated Aug 4, 2026.