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Engine:
Farmall Standard
Power:
183 HP (Engine) / HP (PTO)
Fuel Type:
Diesel
Production:
1974 - 1976
| Overview | |
|---|---|
| Summary | x1974 - 1976 66 Series Row-Crop tractor |
| Production | |
|---|---|
| Manufacturer | Farmall (a part of International Harvester) |
| Summary | Row-Crop tractor / Built in Rock Island, Illinois, USA |
| Total built | 7,417 |
| Summary | Original price was $26,250 in 1976 |
| Mechanical | |
|---|---|
| Summary | Two-wheel drive |
| Final drives | planetary |
| Summary | Power steering / Hydraulic wet disc brakes / Open operator station. Cab available with air-conditioning. |
| Hydraulics | |
|---|---|
| Type | open center |
| Rear valves | 2 Opt Optional |
| Front valves | 2 Opt Optional |
| Pump flow | 12 gpm 45.4 lpm |
| Tractor hitch | |
|---|---|
| Rear Type | III/II |
| Control | lower-link draft sensing |
| Electrical | |
|---|---|
| Charging system | alternator |
| Note: the Farmall model 1566 is the same as the International Harvester 1566. The following data is from the 1566 listing. | |
|---|---|
| Engine Detail | |
|---|---|
| Summary | International Harvester DT-436 / turbocharged diesel / 6-cylinder / liquid-cooled |
| Displacement | 436 ci 7.1 L |
| Bore/Stroke | 4.30x5.00 inches 109 x 127 mm |
| Power | 183 hp 136.5 kW |
| Compression | 16:1 |
| Rated RPM | 2600 |
| Idle RPM | 900-2600 |
| Oil capacity | 20 qts 18.9 L |
| Coolant capacity | 26 qts 24.6 L |
| Note: the Farmall model 1566 is the same as the International Harvester 1566. The following data is from the 1566 listing. | |
|---|---|
| Transmission | |
|---|---|
| Transmission | Torque Amplifier |
| Type | two-speed power shift |
| Gears | 12 forward and 6 reverse |
| Note: the Farmall model 1566 is the same as the International Harvester 1566. The following data is from the 1566 listing. | |
|---|---|
| Farmall 1566 Tires | |
| Ag front | 11L-15 |
| Ag rear | 20.8-38 |
| Dimensions | |
|---|---|
| Wheelbase | 105 inches 266 cm |
| Length | 168 inches 426 cm |
| Width | 112 inches * Width over axle ends. 284 cm |
| Height (cab) | 117 inches 297 cm |
| Height (exhaust) | 125 inches 317 cm |
| Clearance (drawbar) | 17 inches 43 cm |
| Front tread | 62 to 86 inches 157 to 218 cm |
| Front tread | 56 to 80 inches 142 to 203 cm (optional) |
| Rear tread | 66 to 120 inches 167 to 304 cm |
| Farmall 1566 Weight | |
|---|---|
| Shipping | 13200 lbs 5987 kg |
| Operating | 15195 lbs 6892 kg |
| Ballasted | 18260 lbs 8282 kg |
| Note: the Farmall model 1566 is the same as the International Harvester 1566. The following data is from the 1566 listing. | |
|---|---|
| Nebraska Tractor Test 1174 | |
|---|---|
| Summary | Diesel Torque Amplifier 2WD May 3 - 15, 1975 Link: Nebraska Tractor Test 1174 file / PTO performance |
| Power at rated engine speed | 161.01 hp 120.1 kW |
| Fuel use | 11.1 gal/hour 42.0 l/hour |
| Power at rated PTO speed | 162.31 hp 121.0 kW |
| Fuel use | 10.0 gal/hour 37.9 l/hour |
| Summary | Drawbar performance |
| Max power | 137.00 hp 102.2 kW |
| Fuel use | 10.9 gal/hour 41.3 l/hour |
| Max pull | 15774 lbs 7155 kg |
Last Database Update: 11/18/2025