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Farmall 806 vs Farmall 856
Verdict: Farmall 806 vs Farmall 856
The Farmall 806 and the Farmall 856 are both tractors — here is how they stack up on the figures that matter. Farmall 806 leads on rated power with 110 hp against 100 hp. Farmall 806 is the lighter machine (7,720 kg vs 9,270 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Farmall 856 is the newer design (1967 vs 1963). In short: choose the Farmall 806 for outright pulling power, or the Farmall 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
Farmall
85
Fit score
Best match
Clear
Farmall
85
Fit score
Best match
Clear
Rated power
110 hp
100 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Farmall (a part of International Harvester)Reference
Farmall (a part of International Harvester)Reference
As two-range Torque Amplifer (TA) to the basic transmission. Pulling back on the left-hand TA lever provides a clutchless shift to a lower speed for each gear. Pushing the lever forward return to direct-drive mode.Reference
With 16.9-38 rear tires.Reference
Total built
42,957Reference
3,676 (F856 Custom total)Reference
Final drives
bull gearReference
—
Variants
IH 806
standard-treadReference
—
Farmall 806
row-cropReference
—
IH 856
—
standard chassisReference
Farmall 856
—
row-crop chassisReference
856 Custom
—
economy modelReference
Engine
Fuel tank
159.0 LReference
181.7 LReference
LP-gas Fuel tank
177.9 LReference
—
Engine (gross)
82.0 kWReference
—
Drawbar (claimed)
62.6 kWReference
—
Drawbar (tested)
63.2 kWReference
65.0 kWReference
Displacement
4.9 LReference
4.9 LReference
Bore/Stroke
97 x 112 mmReference
97 x 112 mmReference
Air cleaner
two-stage dryReference
dual dry elementsReference
Compression
17:1Reference
8.8:1Reference
Rated RPM
2400Reference
2400Reference
Idle RPM
900-2400Reference
—
Starter volts
12Reference
12Reference
Power (gross)
82.0 kWReference
—
Power at rated engine speed
69.7 kWReference
74.9 kWReference
Max power
60.8 kWReference
65.0 kWReference
Oil capacity
—
64.4 LReference
Coolant capacity
—
20.3 LReference
Transmission
Gears
16 forward and 8 reverseReference
16 forward and 8 reverseReference
Clutch
12-inch dry discReference
dry discReference
Transmission
Torque AmplifierReference
Torque AmplifierReference
PTO & Hydraulics
PTO (claimed)
70.5 kWReference
70.8 kWReference
PTO (tested)
70.8 kWReference
74.9 kWReference
Type
two-speed power shiftReference
two-speed power shiftReference
Pump flow
11.4 lpmReference
—
Steering flow
34.1 lpmReference
—
Rear Type
II/IReference
2Reference
Rear PTO
independentReference
independentReference
Rear PTO Type
1000 (1.375)Reference
540/1000Reference
Engine RPM
1000@2100Reference
1000@2100Reference
Power at rated PTO speed
62.0 kWReference
70.3 kWReference
Dimensions
Wheelbase
257 cmReference
266 cmReference
Weight
7720 to 8500 poundsReference
9270 to 10290 poundsReference
Front tire
6.50-16Reference
7.50-16Reference
Rear tire
15.5-38Reference
16.9-38Reference
Ag front
6.50-16Reference
7.50-16Reference
Ag rear
15.5-38Reference
16.9-38Reference
Length
408 cmReference
416 cmReference
Width
279 cmReference
233 cmReference
Height (steering wheel)
205 cmReference
218 cmReference
Rear axle
82 mmReference
—
Front tread
20/40 cmReference
—
Rear tread
142 to 238 cmReference
—
Gasoline Shipping
3501 kgReference
—
Diesel Shipping
3855 kgReference
—
Ballasted
5395 kgReference
5459 kgReference
Shipping
—
4204 kgReference
Operating
—
4667 kgReference
Farmall 806 attachments
806 Serial Numbers
1963
501Reference
—
1964
4709Reference
—
1965
15946Reference
—
1966
24038Reference
—
1967
34943Reference
7501Reference
Electrical
Ground
negativeReference
—
Charging system
generatorReference
—
Charging amps
25Reference
—
Batteries
1 (gas/LP)Reference
—
Battery volts
12 (gas/LP)Reference
—
Battery AH
60 (gas/LP)Reference
—
Questions
Test results
Fuel use
36.0 l/hourReference
22.7 l/hourReference
Max pull
4115 kgReference
4271 kgReference
Speeds
Farmall 856 attachments
856 Serial Number Location
856 Serial Numbers
1968
—
9854Reference
1969
—
19554Reference
1970
—
28693Reference
1971
—
32420Reference
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.