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International Harvester A-866 vs International Harvester Hydro 70
Verdict: International Harvester A-866 vs International Harvester Hydro 70
The International Harvester A-866 and the International Harvester Hydro 70 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 90 hp. International Harvester A-866 is the lighter machine (4,900 kg vs 7,450 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
International Harvester
85
Fit score
Best match
Clear
International Harvester
85
Fit score
Best match
Clear
Rated power
90 hp
90 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
International HarvesterReference
International HarvesterReference
liquid-cooled inlineReference
Diesel hydrostatic 2WDNovember 14 - December 3, 1973Link: Nebraska Tractor Test 1155 fileReference
Final drives
bull gearReference
—
Original price
—
$14,200Reference
Engine
Fuel tank
159.0 LReference
—
Engine
90.2 kWReference
—
Drawbar (claimed)
64.9 kWReference
40.3 kWReference
Displacement
5.9 LReference
5.1 LReference
Bore/Stroke
98 x 129 mmReference
98 x 112 mmReference
Power
90.2 kWReference
—
Fuel system
direct injectionReference
—
Compression
16:1Reference
17:1Reference
Rated RPM
2500Reference
2400Reference
Torque
359.3 NmReference
—
Torque RPM
1600Reference
—
Starter
electricReference
—
Starter volts
12Reference
12Reference
Engine (gross)
—
67.1 kWReference
Drawbar (tested)
—
40.2 kWReference
Power (gross)
—
67.1 kWReference
Air cleaner
—
dual stage dryReference
Idle RPM
—
900-2400Reference
Oil capacity
—
75.7 LReference
Coolant capacity
—
19.9 LReference
Power at rated engine speed
—
51.8 kWReference
Max power
—
39.6 kWReference
Transmission
Transmission
Torque AmplifierReference
—
Gears
16 forward and 4 reverseReference
infinite forward and reverse (2-range)Reference
PTO & Hydraulics
PTO (claimed)
67.1 kWReference
51.5 kWReference
Type
two-speed power shiftReference
hydrostaticReference
Rear Type
IIReference
IIReference
Rear PTO
independentReference
independentReference
Rear PTO Type
540/1000 (1.375)Reference
540 (1.375)Reference
Engine RPM
1000@2300Reference
540@1986Reference
PTO (tested)
—
51.9 kWReference
Hydraulic system
—
75.7 LReference
Capacity
—
75.7 LReference
Rear valves
—
2Reference
Pump flow
—
22.7 lpmReference
Power at rated PTO speed
—
48.8 kWReference
Dimensions
Wheelbase
265 cmReference
261 cmReference
Weight
4900 kgReference
7450 to 8200 poundsReference
Front tire
11.00-16Reference
7.50-16Reference
Rear tire
23.1-34Reference
15.5-38Reference
Ag front
11.00-16Reference
7.50-16Reference
Ag rear
18.4-38Reference
15.5-38Reference
Length
405 cmReference
408 cmReference
Width
230 cmReference
220 cmReference
Height (steering wheel)
220 cmReference
195 cmReference
Front tread
151 to 213 cmReference
147 to 208 cmReference
Rear tread
172 to 268 cmReference
142 to 274 cmReference
Height (exhaust)
—
264 cmReference
Clearance (drawbar)
—
35 cmReference
Gas Shipping
—
3379 kgReference
Diesel Shipping
—
3578 kgReference
Operating
—
3719 kgReference
A-866 Serial Numbers
1973
501Reference
7501Reference
1974
601Reference
7570Reference
1975
761Reference
8681Reference
1976
1045Reference
10094Reference
1977
1567Reference
—
1978
1998Reference
—
Final
2142Reference
—
Capacities
Gas Fuel
—
124.9 LReference
Diesel Fuel
—
117.3 LReference
Hydro 70 Serial Number Location
Hydro 70 Serial Numbers
Electrical
Charging system
—
alternatorReference
Charging amps
—
37Reference
Test results
Fuel use
—
20.1 l/hourReference
Max pull
—
3769 kgReference
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.