Farmall 806

Last Updated: July 2024

Overview

The Farmall 806 is a row-crop tractor that was manufactured by International Harvester between 1963 and 1967. It offered a choice between a 5.9-liter six-cylinder diesel engine and a 4.9-liter six-cylinder gasoline or LP-gas engine. The gasoline version, as tested by the University of Nebraska Tractor Test Laboratory in 1963, produced a maximum power of 94.64 HP at 2200 rpm with a fuel consumption of 6.47 Gal/hr and a fuel efficiency of 0.560 lb/hp.hr. At rated engine speed in 5th gear, it delivered 74.35 HP with a drawbar pull of 6705 lbs and a speed of 5.08 mph. The maximum torque was 276 lb.-ft. at 1500 rpm with a torque rise of 29.4%. The tractor could be equipped with an 8-speed unsynchronized gear or a 16-speed two-speed power shift transmission. It featured hydrostatic power steering, hydraulic dry disc brakes, and an open operator station. Additional notable specifications include a hydraulic system with a delivery rate of 12.0 GPM and a fuel efficiency of 13.95 Hp.hr/gal at the standard PTO speed of 1000 rpm.

Key Specifications

Category: Row Crop

Power Output: 110 / 94.64

Transmission: Unsynchronized gear / Two-speed power shift

Drive Type: 2WD

Operating Weight: 7720 to 8500

Fuel Type: Diesel / Gasoline / LP-gas

Farmall 806 vs. Similar Tractors

Power Output

Below Average

Greater than 29% of similar tractors.

Operating Weight

Above Average

Greater than 90% of similar tractors.

Technical Specifications

Engine

Manufacturer: International Harvester
Model: D-361 / C301
Cooling Type: Liquid-cooled
Cylinder Orientation: Inline
Valve Configuration: -
Fuel Type: Diesel / Gasoline / LP-gas
Induction Type: Naturally aspirated
Cylinders: 6
Displacement (ci): 361 / 301
Bore (in): 4.13 / 3.82
Stroke (in): 4.49 / 4.41
Rated RPM: 2400 / 2200
Power Output (hp): 110 / 94.64

Transmission

Type: Unsynchronized gear / Two-speed power shift
Forward Gears: 8 or 16
Reverse Gears: 4, 8
Total Gears: -

Dimensions

Length (in): 160.6
Width (in): 109.8
Height (in): 80.7
Operating Weight (lb): 7720 to 8500

Power Take-Off (PTO)

PTO Type: Independent
PTO Speed 1 (rpm): 1000
PTO Speed 2 (rpm): 540/1000
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: 4x2 2WD
Drive Type: 2WD
Steering Type: Hydrostatic power
Coolant Capacity (qts): 24
Front Tire Diameter (in): 16
Front Tire Width (in): 6.5
Rear Tire Diameter (in): 38
Rear Tire Width (in): 15.5
Front/Rear Rim Diameter (in): -
Tire Type: Ag
Manufacture - End Year: 1967
Hitch Type: IH Fast Hitch
Hitch Category: II/I
Hitch Position: Rear
Hitch Capacity (lb): -
Operator Station Type: Open operator station
Starter Type: Electric
Brake Type: Hydraulic dry disc
Hydraulic System Type: Open center

Test Results

Nebraska Tractor Test Laboratory - Test Date: January 1, 1963

Maximum Power and Fuel Consumption

Maximum Power: 94.64 HP (70.60 kW) at 2200 rpm
Fuel Consumption at Maximum Power: 6.51 Gal/hr (24.65 l/h) with a fuel efficiency of 0.522 lb/hp.hr (0.318 kg/kW.h)

Drawbar Performance

Power at Rated Engine Speed (8th Gear): 67.06 HP (50.03 kW) with a drawbar pull of 7480 lbs (33.28 kN) and a speed of 5.21 mph (8.39 km/h)
Fuel Consumption at Rated Speed: 0.613 lb/hp.hr (0.373 kg/kW.h) with a fuel efficiency of 13.56 Hp.hr/gal (2.67 kW.h/l)

Torque and Engine Performance

Maximum Torque: 280 lb.-ft. (380 Nm) at 1500 rpm
Torque Rise: 18.8% with a power increase at 2200 rpm of 11.0%

Hydraulic Performance

Maximum Force Exerted: 4500 lbs (20.02 kN) at hitch points
Pump Delivery Rate: 12.0 GPM (45.4 l/min) at minimum pressure and rated engine speed
Hydraulic Power: 20.0 HP (14.9 kW) at delivery pressure of 2000 psi (138 bar)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (1000 rpm): 14.00 Hp.hr/gal (2.76 kW.h/l)
Fuel Consumption: 6.30 Gal/hr (23.85 l/h) at 1800 rpm

Nebraska Tractor Test Lab.(1963). Test 859: Farmall 806 (Gasoline). Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/1249