Farmall
Farmall 966
The Farmall 966 is a row-crop tractor produced from 1971 to 1976 as part of the 66 Series by Farmall, a division of International Harvester. Built in Rock Island, Illinois, USA, a total of 21,017 units were made. It features an International Harvester 6.8L 6-cylinder liquid-cooled diesel engine producing 91 hp. Transmission options include an 8-speed gear, a 16-speed two-speed power shift with Torque Amplifier, and a hydrostatic transmission (discontinued in 1973). The tractor offers two- or four-wheel drive, power steering, and optional cab with heat and air-conditioning. It has a rear independent PTO with 540/1000 rpm options and an IH Fast Hitch rear hitch. The Farmall 966 is known for its robust build and versatility in row-crop farming.
Power91 hp
Founded1971 - 1976
Model966
Technical Specifications
Detailed specifications and technical data for Farmall 966
Power
| Engine | 91 hp (67.9 kW) |
|---|---|
| PTO (tested) | 100.80 hp (75.2 kW) |
| PTO (claimed) | 95 hp (70.8 kW) |
| Drawbar (tested) | 85.21 hp (63.5 kW) |
| Drawbar (claimed) | 84 hp (62.6 kW) |
Engine
| Type | diesel |
|---|---|
| Model | International Harvester D414 |
| Power | 91 hp (67.9 kW) |
| Cooling | liquid-cooled |
| Cylinders | 6-cylinder |
| Rated RPM | 2400 (early), 2600 (late) |
| Air cleaner | dual dry elements |
| Bore/Stroke | 4.30x4.75 inches (109 x 121 mm) |
| Displacement | 414 ci (6.8 L) |
| Firing order | 1-5-3-6-2-4 |
| Oil capacity | 12 qts (11.4 L) |
| Coolant capacity | 24 qts (22.7 L) |
Weight
| Ballasted | 13,500 lbs (6123 kg) |
|---|---|
| Operating (gear) | 11,116 lbs (5042 kg) |
| Operating (hydro) | 11,700 lbs (5307 kg) |
Capacity
| Fuel | 37 gal (140.0 L) |
|---|---|
| Hydraulic system | 22.5 gal (85.2 L) |
Electrical
| Batteries | 2 |
|---|---|
| Battery AH | 172 |
| Battery volts | 6 |
| Charging amps | 32 |
Hydraulics
| Type | open center |
|---|---|
| Valves | 1 to 4 |
| Capacity | 22.5 gal (85.2 L) |
| Pressure | 2000 psi (137.9 bar) |
| Pump flow | 12 gpm (45.4 lpm) |
| Total flow | 21 gpm (79.5 lpm) |
| Steering flow | 9 gpm (34.1 lpm) |
| Steering pressure | 1550 psi (106.9 bar) |
Mechanical
| Cab | Optional with heat and air-conditioning |
|---|---|
| Drive | Two- or four-wheel drive |
| Brakes | Independent hydraulic dry disc brakes |
| Steering | Power steering |
Production
| Type | Row-Crop tractor |
|---|---|
| Series | 66 Series |
| Built in | Rock Island, Illinois, USA |
| Total built | 21,017 |
| Original price | $18,000 in 1976 |
| Years produced | 1971 - 1976 |
Transmission
| Options | 8-speed gear, 16-speed two-speed power shift, hydrostatic |
|---|---|
| Gear clutch | dry disc |
| Gear details | Four gears each provided in high, low, and reverse ranges. |
| Gear oil capacity | 90 qts (85.2 L) |
| Gear transmission | 8 forward and 4 reverse |
| Hydrostatic notes | Option ended in 1973 when the Hydro 100 began production. |
| Torque Amplifier gears | 16 forward and 8 reverse |
| Torque Amplifier clutch | dry disc |
| Hydrostatic transmission | infinite forward and reverse |
| Torque Amplifier details | Provides shift-on-the-move underdrive to the standard transmission without clutching or stopping. |
| Torque Amplifier transmission | two-speed power shift |
Tractor hitch
| Type | IH Fast Hitch |
|---|---|
| Rear Type | II |
| Rear lift | 5000 lbs (at 24 inches) (2268 kg) |
| Rear lift (at 24"/610mm) | 4400 lbs (1995 kg) |
Dimensions & Tires
| Width | 98 inches (248 cm) |
|---|---|
| Length | 165 inches (419 cm) |
| Rear tire | 18.4-34 |
| Wheelbase | 105 inches (266 cm) |
| Front tire | 9.5L-15 |
| Ground clearance | 14 inches (35 cm) |
| Height (exhaust) | 105 inches (266 cm) |
Power Take-off (PTO)
| Rear PTO | independent |
|---|---|
| Rear PTO Type | 540/1000 |