Production years
1963-1967
Farmall tractor ยท 1963-1967
Farmall 806 Tractor
The Farmall 806 was a 1963-1967 row-crop tractor rated at 94.5 PTO hp and built for substantial field work. It was the row-crop counterpart to the International Harvester 806 standard-tread model.
Engine
International Harvester six-cylinder: 358 cu. in. (5.9 L) diesel, or 301 cu. in. (4.9 L) gasoline or LP gas
Power
94.5 PTO hp claimed; 94.93 PTO hp tested
Weight approx.
7,720-8,500 lb
Farmall 806 specifications
| Production years | 1963-1967 |
|---|---|
| Engine | International Harvester six-cylinder: 358 cu. in. (5.9 L) diesel, or 301 cu. in. (4.9 L) gasoline or LP gas |
| Power | 94.5 PTO hp claimed; 94.93 PTO hp tested |
| Transmission | 8-speed unsynchronized gear, with optional 16-speed Torque Amplifier two-speed power shift |
| Weight approx. | 7,720-8,500 lb |
| Fuel type | Diesel, gasoline, or LP gas |
| PTO | Independent PTO, typically 540/1,000 rpm depending on equipment |
| Hydraulics | Open-center system; optional 12 gpm pump |
What the 806 is used for
The 806 is well matched to tillage, planting, haying, heavy PTO equipment, and other medium-to-large farm work. Its power and weight make it a genuine field tractor rather than a light utility machine.
It can also serve well at shows and on collector farms, although its size requires appropriate storage, transport, and implements. The diesel is a common working choice, while gasoline and LP versions have their own collector appeal.
Why the Farmall 806 stands out
With nearly 43,000 Farmall row-crop units built, the 806 became a highly familiar International Harvester tractor. It combined strong six-cylinder power with independent PTO, power steering, the optional Torque Amplifier, and the Farmall row-crop layout that many operators wanted.
Buying a used Farmall 806
Test the Torque Amplifier carefully through both ranges under load, as repair can be significant. Also inspect hydraulic performance, PTO engagement, dry-disc brake operation, steering, rear tires, engine starting and blow-by, and evidence of worn hitch or Fast Hitch parts. Values vary, so check listings and confirm option-specific specifications with TractorData.com.
Farmall 806 frequently asked questions
What is the difference between a Farmall 806 and an IH 806?
The Farmall 806 is the row-crop version; the International Harvester 806 is the standard-tread version.
How much PTO power does a Farmall 806 have?
It was rated at 94.5 PTO hp and tested at 94.93 PTO hp.
What does Torque Amplifier add to an 806?
It provides a two-speed power shift, giving the tractor a 16-speed arrangement rather than the basic 8-speed transmission.
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.