International Harvester 666

International Harvester 666The International Harvester 666 is a 2WD utility tractor manufactured by International Harvester from 1972 to 1976. The

International Harvester 666 is equipped with one of two engines: a 5.1 L (312.0 cu·in) six-cylinder diesel engine or a 4.8 L (291.0 cu·in) six-cylinder gasoline engine and one of three transmissions: a sliding gear transmission with 5 forward and 1 reverse gear, hydrostatic transmission with infinite forward and reverse gears or a partial power shift transmission with 10 forward and 2 reverse gears and dry disc clutch.

The tractor could be equipped with the following engines:

  • International Harvester D312. It is a 5.1 L, 5,113 cm2, (312.0 cu·in) six-cylinder natural aspirated diesel engine with 98.0 mm (3.86 in) of the cylinder bore and 112.0 mm (4.41 in) of the piston stroke. The compression ratio rating is 17.0:1.
  • International Harvester C291. It is a 4.8 L, 4,767 cm2, (290.9 cu·in) six-cylinder natural aspirated gasoline engine. The cylinder bore is 95.0 mm (3.74 in) and the piston stroke is 112.0 mm (4.41 in). The compression ratio rating is 7.5:1.

The International Harvester 666 is equipped with hydrostatic power steering, dry disc brakes, open operator station, or two-post ROPS (optional).

International Harvester 666 Specifications

General Specifications
Model International Harvester 666
Length
Width
Height
Wheel base 2,610 mm (102.8 in)
Ground clearance
Weight 3,200 kg (7,055 lbs)
Fuel tank capacity
Battery 12V
Cabin type Open operator station or Two-post ROPS (optional)
Engine
Engine model International Harvester D312
Engine type Four-stroke, liquid-cooled, inline
Cylinders 6
Fuel type Diesel
Displacement 5.1 L, 5,113 cm2, (312.0 cu·in)
Bore and stroke 98.0 mm X 112.0 mm (3.86 in X 4.41 in)
Compression ratio 17.0:1
Horsepower
Starter Electric
Engine
Engine model International Harvester C291
Engine type Four-stroke, liquid-cooled, inline
Cylinders 6
Fuel type Gasoline
Displacement 4.8 L, 4,767 cm2, (291.0 cu·in)
Bore and stroke 95.0 mm X 112.0 mm (3.74 in X 4.41 in)
Compression ratio 7.5:1
Horsepower
Starter Electric
Transmission and chassis
Chassis 4×2 2WD
Steering type Hydrostatic power
Brakes Dry disc
Transmission model
Transmission type Sliding gear
Gears 5 forward and 1 reverse
Transmission model
Transmission type Hydrostatic
Gears Infinite forward and reverse
Transmission model Torque-Amplifier
Transmission type Partial power shift with dry disc clutch
Gears 10 forward and 2 reverse
Speed Forward: 26.5 kmh (16.5 mph) Reverse: 4.8 (3 mph)
Tires
Front tires Ag: 7.50-16
Rear tires Ag: 15.5-38
Three-Point Hitch
Category II
Control type
Lift capacity (at ends)
PTO (Power take-off shaft)
Rear PTO type Independent
Rear PTO speed 540 rpm