SPECS / COMPARISON

Compare models

Manufacturer-sourced values side by side. No performance equivalence or ranking is applied across different machine classes.

Feature	Allis Chalmers 200Tractor	International Harvester 666Tractor
Tractor Type	Row-Crop Tractor	Utility Tractor
Weight	3320.0 kg	3200.0 kg
Lift Capacity	2090.0 kg	—
Transmission Type	Constant mesh-helical gears	Partial power shift with dry disc clutch
Length	445.0 cm	—
Pump Flow	65.1 LPM	—
Years Made	1972-1975	1972-1976
Engine Model	Allis Chalmers	International Harvester C291
Engine Type	4-stroke, liquid-cooled, inline	4-stroke, liquid-cooled, inline
Fuel Type	Diesel	Gasoline
Cylinders	6	6
Displacement	4933 cc	4767 cc
Bore	9.80 cm	9.50 cm
Stroke	10.79 cm	11.20 cm
Rear PTO Speed	540 /1000 RPM	540 RPM
Compression Ratio	16.0:1	7.5:1
Battery	One or two 12V	12 V
Starter	electric	Electric
Height	298.0 cm	—
Width	222.0 cm	—
Fuel Tank Capacity	182.0 l	—
Oil Capacity	14.2 l	—
Coolant Capacity	17.0 l	—
Transmission Oil Capacity	36.0 l	—
Hydraulic Capacity	26.5 l	—
Gears	8 forward and 2 reverse	10 forward and 2 reverse
Chassis	4×2 2WD	4×2 2WD
Max. Travel Speed	7.2 km/h	4.8 km/h
Brakes	Ball actuated disc	Dry disc
Drawbar Category	II	II
Cabin Type	Open operator station.	Open operator station or Two-post ROPS
Steering Type	Hydraulic power	Hydrostatic power
Front Tires	Ag: 7.50-16	Ag: 7.50-16
Rear Tires	Ag: 16.9-34	Ag: 15.5-38
Hydraulic Type	Open center	—
Total Flow	79.5 LPM	—
Working Pressure	158.6 bar	—
Valves	2	—
Rear PTO Type	—	Independent
Wheelbase	—	261.0 cm
Transmission Model	—	Torque-Amplifier
Source	heavyequipments.net archive (imported 2026-10)	heavyequipments.net archive (imported 2026-10)

POPULAR COMPARISONS

MODEL COMPARISONS

Side-by-side specification comparisons generated from the manufacturer-sourced model files. · 7,051