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International Harvester 856 vs International Harvester Hydro 100

Verdict: International Harvester 856 vs International Harvester Hydro 100

The International Harvester 856 and the International Harvester Hydro 100 are both tractors — here is how they stack up on the figures that matter. International Harvester Hydro 100 leads on rated power with 104 hp against 100 hp. International Harvester 856 is the lighter machine (9,370 kg vs 11,470 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester Hydro 100 is the newer design (1973 vs 1967). In short: choose the International Harvester Hydro 100 for outright pulling power, or the International Harvester 856 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Fit & specs
International Harvester 856 Tractor
International Harvester
85
Fit score
Best match
Clear
International Harvester Hydro 100 Tractor
International Harvester
85
Fit score
Best match
Clear
Rated power
100 hp
104 hp
Confidence
40%
40%
Guide price
Overview
Manufacturer
International HarvesterReference
International HarvesterReference
With 18.4-38 rear tires.Reference
Gear 2.85 MPH used for pull test.Reference
Total built
4 (gasoline)Reference
Steering
powerReference
Differential lock
mechanical rearReference
Variants
Farmall 856
row-crop tractorReference
Engine
Fuel tank
159.0 LReference
Drawbar (tested)
65.0 kWReference
58.4 kWReference
Displacement
4.9 LReference
7.1 LReference
Bore/Stroke
97 x 112 mmReference
109 x 127 mmReference
Air cleaner
dual dry elementsReference
dual stage dryReference
Compression
8.8:1Reference
15.8:1Reference
Rated RPM
2400Reference
2400Reference
Idle RPM
900-2400Reference
900-2400Reference
Starter volts
12Reference
12Reference
Oil capacity
8.5 LReference
102.2 LReference
Coolant capacity
20.3 LReference
24.6 LReference
Power at rated engine speed
74.9 kWReference
77.7 kWReference
Max power
65.0 kWReference
58.4 kWReference
Drawbar (claimed)
59.7 kWReference
Transmission
Gears
16 forward and 8 reverseReference
infinite forward and reverse (2-range)Reference
Transmission
Torque AmplifierReference
PTO & Hydraulics
Diesel PTO (claimed)
70.8 kWReference
Gas PTO (claimed)
69.4 kWReference
PTO (tested)
74.9 kWReference
77.7 kWReference
Type
two-speed power shiftReference
hydrostaticReference
Pump flow
45.4 lpmReference
45.4 lpmReference
Rear Type
IIReference
IIReference
Rear PTO
independentReference
independentReference
Rear PTO Type
540/1000Reference
540/1000 (1.375)Reference
Engine RPM
1000@2100Reference
1000@2072Reference
Power at rated PTO speed
70.3 kWReference
75.5 kWReference
PTO (claimed)
77.6 kWReference
Hydraulic system
102.2 LReference
Capacity
102.2 LReference
Rear valves
2Reference
Control
lower-link draft sensingReference
Dimensions
Wheelbase
231 cmReference
266 cmReference
Weight
9370 to 10290 poundsReference
11470 to 12130 poundsReference
Front tire
10.00-16Reference
10.00-16Reference
Rear tire
18.4-38Reference
18.4-34Reference
Ag front
10.00-16Reference
10.00-16Reference
Ag rear
18.4-38Reference
18.4-34Reference
Length
386 cmReference
426 cmReference
Width
203 cmReference
259 cmReference
Height (steering wheel)
205 cmReference
Bar rear axle
82 by 2032 mmReference
82 mmReference
Diesel Shipping
4250 kgReference
Diesel Operating
4667 kgReference
Ballasted
5459 kgReference
Height (cab)
289 cmReference
Height (exhaust)
274 cmReference
Shipping weight
5202 kgReference
Operating weight
5502 kgReference
Clearance (drawbar)
35 cmReference
Front tread
152 to 213 cmReference
Rear tread
167 to 325 cmReference
856 Serial Number Location
856 Serial Numbers
1967
7501Reference
1968
7904Reference
1969
9016Reference
1970
9544Reference
1971
9653Reference
Electrical
Charging system
alternatorReference
alternatorReference
Charging amps
55Reference
72Reference
Diesel Batteries
2Reference
Gas Batteries
1Reference
Diesel Battery volts
6Reference
Gas Battery volts
12Reference
Diesel Battery AH
204Reference
Gas Battery AH
60Reference
Test results
Fuel use
22.7 l/hourReference
25.7 l/hourReference
Max pull
4271 kgReference
4445 kgReference
Speeds
Capacities
Fuel
159.0 LReference
Hydro 100 Serial Numbers
1973
7501Reference
1974
7727Reference
1975
10915Reference
1976
12434Reference
Location:
Serial number plate on the left side of the transmission housing.Reference

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.

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