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farmall 966 Tractor Model – Features, Specifications, and Complete Review

Production: 1971 - 1976
farmall 966

When it comes to modern farming, farmers need a tractor that balances power, efficiency, and versatility. The farmall 966 with a strong 91 HP engine, designed to meet the needs of small to medium farmers. , this model is a practical choice for those who want performance at an affordable cost.

In this blog, we’ll explore the features, specifications, benefits, and FAQs about the farmall 966 Tractor Model, so you can make an informed choice.


Key Features of farmall 966

  • ✔️ Engine Power (91 HP): the tractor delivers excellent performance for ploughing, tilling, sowing, and hauling tasks.
  • ✔️ Tires: Front: 9.5L-15 | Rear: 18.4-34

Production
Manufacturer Farmall (a part of International Harvester)
Note Row-Crop tractor
Note Built in Rock Island, Illinois, USA
Total built 21,017
Note Original price was $18,000 in 1976
Mechanical
Note Two- or four-wheel drive
Note Power steering
Note Independent hydraulic dry disc brakes
Note Cab optional with heat and air-conditioning.
Capacity
Fuel 37 gal 140.0 L
Hydraulic system 22.5 gal 85.2 L
Hydraulics
Type open center
Capacity 22.5 gal 85.2 L
Pressure 2000 psi 137.9 bar
Valves 1 to 4
Pump flow 12 gpm 45.4 lpm
Total flow 21 gpm 79.5 lpm
Steering flow 9 gpm 34.1 lpm
Steering press. 1550 psi 106.9 bar
Tractor hitch
Rear Type II
Rear lift (at 24"/610mm) 4400 lbs 1995 kg
Type IH Fast Hitch
Rear lift 5000 lbs (at 24 inches) 2268 kg
Power Take-off (PTO)
Rear PTO independent
Rear PTO Type 540/1000
Dimensions & Tires
Wheelbase 105 inches 266 cm
Weight 11116 to 11700 pounds
Front tire 9.5L-15
Rear tire 18.4-34
Note Full dimensions and tires ...
Electrical
Charging amps 32
Batteries 2
Battery volts 6
Battery AH 172
966 Serial Numbers
Location: Clutch housing, left side
1971 7101
1972 11815
1973 17794
1974 22526
1975 28119
1976 31772
Note FAQ: How to read a serial number table.
1971 - 1976
Note 66 Series
Note Row-Crop tractor
Farmall 966 Engine
Note International Harvester 6.8L 6-cyl diesel
Note Engine details ...
Farmall 966 Power
Engine 91 hp 67.9 kW
Drawbar (claimed) 84 hp 62.6 kW
PTO (claimed) 95 hp 70.8 kW
Drawbar (tested) 85.21 hp 63.5 kW
PTO (tested) 100.80 hp 75.2 kW
Note Performance test details ...
Farmall 966 Transmissions
Note 8-speed gear
Note 16-speed two-speed power shift
Note hydrostatic
Note Transmission details ...
General
Note 1971 - 1976
Note 66 Series
Note Row-Crop tractor
Photos
Note Farmall 966 photos...
References
Note International Tractor Range published in 1973, by International Harvester
Note Buyer's Guide published in 1976, by International Harvester
Note Farm Equipment Reference Catalog published in 1971, by International Harvester

Benefits

  • Perfect for Small & Medium Farmers: Good balance of power and efficiency for most farm operations.
  • Multi-purpose: Suitable for agriculture, haulage, landscaping, and horticulture.
  • Value for Money: Practical features with durable build quality.

FAQs

What is the horsepower?

👉 It comes with 91 HP.


Final Verdict

The farmall 966 is a reliable, versatile tractor for multiple uses. With its 91 HP, it offers excellent value for money.