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Farmall 966 vs Farmall Hydro 70
Verdict: Farmall 966 vs Farmall Hydro 70
The Farmall 966 and the Farmall Hydro 70 are both tractors — here is how they stack up on the figures that matter. Farmall 966 leads on rated power with 96 hp against 90 hp. Farmall Hydro 70 is the lighter machine (7,450 kg vs 11,116 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Farmall Hydro 70 is the newer design (1973 vs 1971). In short: choose the Farmall 966 for outright pulling power, or the Farmall Hydro 70 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
96 hp
90 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Farmall (a part of International Harvester)Reference
Farmall (a part of International Harvester)Reference
The hydrostatic transmission option ended in 1973 when the Hydro 100 began production.Reference
Diesel hydrostatic 2WDNovember 14 - December 3, 1973Link: Nebraska Tractor Test 1155 fileReference
Total built
21,017Reference
—
Original price
—
$14,200Reference
Engine
Engine
84.3 kWReference
—
Drawbar (claimed)
62.6 kWReference
40.3 kWReference
Drawbar (tested)
63.5 kWReference
40.2 kWReference
Displacement
6.8 LReference
5.1 LReference
Bore/Stroke
109 x 121 mmReference
98 x 112 mmReference
Power
84.3 kWReference
—
Air cleaner
dual dry elementsReference
dual stage dryReference
Rated RPM
2600 (late)Reference
2400Reference
Firing order
1-5-3-6-2-4Reference
—
Oil capacity
85.2 LReference
75.7 LReference
Coolant capacity
22.7 LReference
19.9 LReference
Power at rated engine speed
75.2 kWReference
51.8 kWReference
Max power
63.5 kWReference
39.6 kWReference
Engine (gross)
—
67.1 kWReference
Power (gross)
—
67.1 kWReference
Compression
—
17:1Reference
Idle RPM
—
900-2400Reference
Starter volts
—
12Reference
Transmission
Gears
infinite forward and reverseReference
infinite forward and reverse (2-range)Reference
Clutch
dry discReference
—
Transmission
Torque AmplifierReference
—
PTO & Hydraulics
PTO (claimed)
70.8 kWReference
51.5 kWReference
PTO (tested)
75.2 kWReference
51.9 kWReference
Hydraulic system
85.2 LReference
75.7 LReference
Type
hydrostaticReference
hydrostaticReference
Capacity
85.2 LReference
75.7 LReference
Pressure
137.9 barReference
—
Valves
1 to 4Reference
—
Pump flow
45.4 lpmReference
22.7 lpmReference
Total flow
79.5 lpmReference
—
Steering flow
34.1 lpmReference
—
Steering press.
106.9 barReference
—
Rear Type
IIReference
IIReference
Rear lift (at 24"/610mm)
1995 kgReference
—
Rear lift
2268 kgReference
—
Rear PTO
independentReference
independentReference
Rear PTO Type
540/1000Reference
540 (1.375)Reference
Power at rated PTO speed
75.7 kWReference
48.8 kWReference
Rear valves
—
2Reference
Engine RPM
—
540@1986Reference
Capacities
Fuel
140.0 LReference
—
Gas Fuel
—
124.9 LReference
Diesel Fuel
—
117.3 LReference
Dimensions
Wheelbase
266 cmReference
261 cmReference
Weight
11116 to 11700 poundsReference
7450 to 8200 poundsReference
Front tire
9.5L-15Reference
7.50-16Reference
Rear tire
18.4-34Reference
15.5-38Reference
Ag front
9.5L-15Reference
7.50-16Reference
Ag rear
18.4-34Reference
15.5-38Reference
Length
419 cmReference
408 cmReference
Width
248 cmReference
220 cmReference
Height (exhaust)
266 cmReference
264 cmReference
Ground clearance
35 cmReference
—
Operating
5307 kgReference
3719 kgReference
Ballasted
6123 kgReference
—
Height (steering wheel)
—
195 cmReference
Clearance (drawbar)
—
35 cmReference
Front tread
—
147 to 208 cmReference
Rear tread
—
142 to 274 cmReference
Gas Shipping
—
3379 kgReference
Diesel Shipping
—
3578 kgReference
966 Serial Numbers
1971
7101Reference
—
1972
11815Reference
—
1973
17794Reference
7501Reference
1974
22526Reference
7570Reference
1975
28119Reference
8681Reference
1976
31772Reference
10094Reference
Location:
Clutch housing, left sideReference
—
Electrical
Charging amps
32Reference
37Reference
Batteries
2Reference
—
Battery volts
6Reference
—
Battery AH
172Reference
—
Charging system
—
alternatorReference
Test results
Fuel use
26.1 l/hourReference
20.1 l/hourReference
Max pull
4552 kgReference
3769 kgReference
Speeds
Hydro 70 Serial Number Location
Hydro 70 Serial Numbers
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.