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Farmall 766 vs Farmall 826

Verdict: Farmall 766 vs Farmall 826

The Farmall 766 and the Farmall 826 are both tractors — here is how they stack up on the figures that matter. Farmall 826 leads on rated power with 92 hp against 80 hp. Farmall 826 is the lighter machine (4,472 kg vs 4,672 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. In short: choose the Farmall 826 for outright pulling power, or the Farmall 766 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 766 Tractor
Farmall
62
Fit score
Clear
Farmall 826 Tractor
Farmall
85
Fit score
Best match
Clear
Rated power
80 hp
92 hp
Confidence
40%
40%
Guide price
Overview
Manufacturer
Farmall (a part of International Harvester)Reference
Farmall (a part of International Harvester)Reference
Four gears (1-4) in two ranges (low/high) with the Torque Amplifer (TA) power shift. The TA allows a shift-on-the-move between direct drive and a lower speed.Reference
With 18.4-34 rear tires.Reference
Total built
10,799Reference
9,591Reference
Final drives
bull gearReference
Differential lock
mechanical rearReference
Engine
Fuel tank
140.0 LReference
140.0 LReference
Drawbar (tested)
54.7 kWReference
58.9 kWReference
Displacement
5.9 LReference
4.9 LReference
Bore/Stroke
98 x 129 mmReference
97 x 112 mmReference
Air cleaner
dual stage dryReference
dual stage dryReference
Rated RPM
2400Reference
2400Reference
Starter volts
12Reference
12Reference
Compression
17:1Reference
16:1Reference
Power at rated engine speed
63.7 kWReference
63.1 kWReference
Max power
54.7 kWReference
45.8 kWReference
Hydro Drawbar (claimed)
45.5 kWReference
Starter
electricReference
Oil capacity
11.4 LReference
Coolant capacity
35.0 LReference
Transmission
Gears
16 forward and 8 reverseReference
infinite forward and reverse (2-range)Reference
Clutch
dry discReference
dry discReference
Transmission
Torque AmplifierReference
International Harvester Torque AmplifierReference
Gear Drawbar (claimed)
58.9 kWReference
Gear Operating weight
4472 kgReference
PTO & Hydraulics
PTO (tested)
63.7 kWReference
68.7 kWReference
Type
two-speed power shiftReference
hydrostaticReference
Pump flow
45.4 lpmReference
Rear Type
2Reference
IIReference
Rear PTO
independentReference
independentReference
Rear PTO Type
540/1000Reference
540/1000Reference
Power at rated PTO speed
63.9 kWReference
58.9 kWReference
Gear PTO (claimed)
68.6 kWReference
Hydro PTO (claimed)
62.6 kWReference
Engine RPM
1000@2100Reference
Dimensions
Wheelbase
266 cmReference
266 cmReference
Weight
4672 kgReference
4472 kgReference
Front tire
9.5L-15Reference
9.5L-15Reference
Rear tire
18.4-34Reference
18.4-34Reference
Ag front
9.5L-15Reference
9.5L-15Reference
Ag rear
18.4-34Reference
18.4-34Reference
Length
419 cmReference
416 cmReference
Width
248 cmReference
Height (exhaust)
266 cmReference
Operating weight
4672 kgReference
Ballasted weight
5388 kgReference
6277 kgReference
Clearance (drawbar)
35 cmReference
Front tread
152 to 213 cmReference
Rear tread
142 to 254 cmReference
Height (steering wheel)
213 cmReference
Bar rear axle
82 by 2336 mmReference
766 Serial Number Location
766 Serial Numbers
1971
7101Reference
7719 (IH)Reference
1972
7416Reference
1973
9611Reference
1974
12378Reference
1975
14630Reference
1976
16840Reference
Test results
Fuel use
23.1 l/hourReference
23.1 l/hourReference
Max pull
4189 kgReference
3982 kgReference
Variants
International 826
standardReference
Farmall 826
row-cropReference
International 2826
industrialReference
Farmall 826 attachments
826 Serial Number Location
826 Serial Numbers
1969
7501 (IH)Reference
1970
7518 (IH)Reference
Electrical
Charging system
alternatorReference
Batteries
1 (gas/LP)Reference
Battery volts
1 (gas/LP)Reference
Speeds

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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