International Harvester 806
Power
105 hp[P] hp
Production
1963-1967
Engine
LP gas, 6-cylinder
Transmission
Unsynchronized
Weight
8,460 lbs (gas) [3837 kg]
Drive
2WD/4WD
From the same series:
Introduction
International Harvester 806: Standard-Tread Agricultural Tractor
The International Harvester 806 is a standard-tread tractor produced between 1963 and 1967. Belonging to a series that includes the 706 and 1206 models, it was designed as a high-capacity machine for heavy-duty agricultural operations, delivering 105 horsepower.
Engine and Cooling
The tractor is powered by an International Harvester 6-cylinder, liquid-cooled engine with a displacement of 301 cubic inches (4.9 liters). It operates at a rated speed of 2400 RPM. The cooling system features a capacity of 24 quarts (22.7 liters) to maintain thermal stability during intensive field work.
Transmission and Drivetrain
The 806 offers two primary transmission configurations: a standard 8-speed unsynchronized gearbox or a 16-speed partial power shift transmission. The latter includes the Torque Amplifier (TA) system, which allows the operator to shift to a lower speed within any gear without using the main clutch, facilitating transitions under varying load conditions. The tractor features a 4x2 2WD drive system, with a 4x4 MFWD configuration available as an option.
Hydraulics and PTO
The hydraulic system utilizes an open-center design with a total flow capacity of 24 gallons per minute (90.8 liters per minute). Steering is supported by a dedicated hydraulic flow of 9 gallons per minute (34.1 liters per minute). The independent rear power take-off (PTO) is available in 1000 RPM or dual 540/1000 RPM configurations, ensuring compatibility with a broad range of implements.
Dimensions and Chassis
Built on a 91-inch (231 cm) wheelbase, the tractor has an overall length of 153 inches (388 cm) and a width of 106 inches (269 cm). The shipping weight is approximately 8,460 lbs (3837 kg) for gas models and 9,220 lbs (4182 kg) for diesel versions. Front and rear treads are adjustable to accommodate different row spacings and stability requirements.
Conclusion
With its robust 6-cylinder engine and flexible transmission options, the International Harvester 806 served as a reliable workhorse for mid-to-large scale farming operations in the 1960s, providing the power and hydraulic capacity necessary for primary tillage and heavy implement operation.
Production Information of International Harvester, 806
- Standard-tread tractor
| Manufacturer | International Harvester |
|---|---|
| Original price | $6,800 (1967) |
| Total built | 8,052 |
Dimension and Tires Information of International Harvester, 806
| Front tread | 53 inches [134 cm (fixed)] |
|---|---|
| Wheelbase | 91 inches [231 cm] |
| Shipping weight | 8,460 lbs (gas) [3837 kg] |
| Height (steering wheel) | 82 inches [208 cm] |
| Length | 153 inches [388 cm] |
| Front tread | 56/69/80 inches [142/175/203 cm (adjustable)] |
| Front tread(optional) | 9,220 lbs (diesel) [4182 kg] |
| Width | 106 inches [269 cm] |
| Rear tread | 60 to 84 inches [152 to 213 cm] |
| Ag front | 7.50-20 |
|---|---|
| Ag rear | 18.4-34 |
| Ag rear | 23.1-34 |
Engine Specifications of International Harvester, 806
- International Harvester
- Liquid-cooled
- LP gas
- 6-cylinder
| Coolant capacity | 24 qts [22.7 L] |
|---|---|
| Displacement | 301 ci [4.9 L] |
| Rated RPM | 2400 |
| Bore/Stroke | 3.8125x4.39 inches [97 x 112 mm] |
| Starter volts | 12 |
| Starter volts | 12 |
| Compression | 8.71:1 |
Transmission Information of International Harvester, 806
Transmission variants 1
- Four gears (1-4) in low, high, and reverse ranges.
| Type | Unsynchronized |
|---|---|
| Gears | 8 forward and 4 reverse |
Transmission variants 2
- As two-range Torque Amplifer (TA) to the basic transmission. Pulling back on the left-hand TA lever provides a clutchless shift to a lower speed for each gear. Pushing the lever forward return to direct-drive mode.
| Transmission | Torque Amplifier |
|---|---|
| Type | Partial power shift |
| Gears | 16 forward and 8 reverse |
- 8-speed unsynchronized
- 16-speed partial power shift
Mechanical Specs of International Harvester, 806
- Open operator station
- Hydraulic dry disc brakes
| Drive | 4x2 2WD |
|---|---|
| Drive(optional) | 4x4 MFWD 4WD (optional) |
| Steering | Hydrostatic power |
Power Information of International Harvester, 806
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 1000 |
| Rear PTO Type(optional) | 540/1000 |
Hydraulics Specifications of International Harvester, 806
| Type | Open center |
|---|---|
| Total flow | 24 gpm [90.8 lpm] |
| Total flow(optional) | 3 gpm (PTO pump) [11.4 lpm] |
| Capacity | 17 gal [64.3 L] |
| Steering flow | 9 gpm [34.1 lpm] |
| Pump flow | 12 gpm [45.4 lpm] |
Three-Point Hitch of International Harvester, 806
| Rear Type | II |
|---|---|
| Type | IH Fast Hitch |
Electrical System of International Harvester, 806
| Ground | Negative |
|---|---|
| Ground(optional) | 1 (gas/LP) |
| Batteries | 2 (diesel) |
| Charging system | Generator |
| Battery AH | 170 (diesel) |
| Battery volts | 6 (diesel) |
| Charging amps | 25 |
| Charging amps(optional) | 60 (gas/LP) |
Where it sits
With 105 hp[P] HP, the International Harvester 806 sits between 706 (80 HP) and 856 (111 HP) in International Harvester's range. Its power puts it in the 87th percentile of 1960s models in our database (709 machines).
Frequently asked questions
How much horsepower does the International Harvester 806 have?
The International Harvester 806 delivers 105 hp[P] HP.
What years was the International Harvester 806 produced?
The International Harvester 806 was produced in 1963-1967.
What engine does the International Harvester 806 have?
The International Harvester 806 is powered by a LP gas, 6-cylinder engine.
What transmission does the International Harvester 806 use?
The International Harvester 806 uses a Unsynchronized transmission.
How much does the International Harvester 806 weigh?
The International Harvester 806 weighs 8,460 lbs (gas) [3837 kg].
Is the International Harvester 806 4WD?
The International Harvester 806 is available in 2WD/4WD.