Production
| Description | Row-Crop tractor / Built in Rock Island, Illinois, USA |
|---|---|
| Manufacturer | Farmall (a part of International Harvester) |
| Original price | $11,875 |
| Total built | 9,367 |
Engine
| Air cleaner | dual stage dry / dual stage dry |
|---|---|
| Bore/Stroke | 3.875x4.410 inches (98 x 112 mm) / 3.75x4.39 inches (95 x 112 mm) |
| Compression | 17:1 / 7.5:1 |
| Coolant capacity | 21 qts (19.9 L) / 21 qts (19.9 L) |
| Description | International Harvester D312 / diesel / 6-cylinder / liquid-cooled / International Harvester C291 / gasoline / 6-cylinder / liquid-cooled |
| Displacement | 312 ci (5.1 L) / 291 ci (4.8 L) |
| Fuel system | direct injection |
| Power (gross) | 75 hp (55.9 kW) / 75 hp (55.9 kW) |
| Rated RPM | 2000 / 2000 |
| Starter volts | 12 / 12 |
| Engine type | International Harvester 5.1L 6-cyl diesel / International Harvester 4.8L 6-cyl gasoline |
| Diesel Fuel tank | 31 gal (117.3 L) |
| Engine type | International Harvester 5.1L 6-cyl diesel / International Harvester 4.8L 6-cyl gasoline |
| Gas Fuel tank | 33 gal (124.9 L) |
| Drawbar (claimed) | 57 hp (gear) (42.5 kW) |
| Drawbar (tested) | 58.01 hp (43.3 kW) |
| Engine (gross) | 75 hp (55.9 kW) |
| PTO (claimed) | 65 hp (gear) (48.5 kW) |
| PTO (tested) | 69.61 hp (51.9 kW) |
Transmission
| Clutch | dry disc |
|---|---|
| Gears | 5 forward and 1 reverse / infinite forward and reverse / 10 forward and 2 reverse |
| Transmission | sliding gear / Torque-Amplifier |
| Type | hydrostatic / two-speed power shift |
| Description | hydrostatic |
| Transmission type | 5-speed / 10-speed two-speed power shift |
| Description | hydrostatic |
| Transmission type | 5-speed / 10-speed two-speed power shift |
Mechanical
| Cab | Open operator station. Two-post ROPS or canopy optional. Cab available with air-conditioning. |
|---|---|
| Description | Power steering / Dry disc brakes |
| Drive type | Two-wheel drive |
Hydraulics
| Pump flow | 12 gpm (45.4 lpm) |
|---|---|
| Type | open center |
Hitch
| Rear Type | II |
|---|---|
| Type | IH Fast Hitch |
PTO
| Rear PTO | independent |
|---|---|
| Rear PTO Type | 540 (1.375) |
Electrical
| Battery volts | 12 |
|---|---|
| Charging system | alternator |
Dimensions & Tires
| Clearance (drawbar) | 14 inches (35 cm) |
|---|---|
| Clearance (front axle) | 21 inches (53 cm) |
| Front tread | 50 to 74 inches (127 to 187 cm) / 56 to 80 inches (142 to 203 cm) |
| Height (steering wheel) | 77 inches (195 cm) |
| Length | 161 inches (408 cm) |
| Rear tread | 50 to 96 inches (127 to 243 cm) |
| Shipping weight | 6780 lbs (gas gear) (3075 kg) |
| Wheelbase | 103 inches (261 cm) |
| Width | 87 inches (220 cm) |
| Front tire | 7.50-16 |
| Rear tire | 15.5-38 |
| Weight | 6780 to 7420 pounds |
| Wheelbase | 103 inches (261 cm) |
| Ag front | 7.50-16 |
| Ag rear | 15.5-38 |
666 Serial Numbers
| 1972 | 7500 |
|---|---|
| 1973 | 8200 |
| 1974 | 11585 |
| 1975 | 13131 |
| 1976 | 15739 |
| Description | FAQ: How to read a serial number table. |
| Location: | Clutch housing, right side |
Nebraska Tractor Test 1151
| Description | 312 diesel Torque Amplifier 2WDNovember 3 - 14, 1973Link: Nebraska Tractor Test 1151 file / PTO performance / Drawbar performance / Gear 3-Direct used for power test. / Gear 2-TA used for pull test. |
|---|---|
| Fuel use | 4.7 gal/hour (17.8 l/hour) / 4.6 gal/hour (17.4 l/hour) |
| Max power | 58.01 hp (43.3 kW) |
| Max pull | 8,012 lbs (3634 kg) |
| Power at rated engine speed | 66.29 hp (49.4 kW) |
Nebraska Tractor Test 1152
| Description | Gasoline Torque Amplifier 2WDNovember 5 - December 3, 1973Link: Nebraska Tractor Test 1152 file / PTO performance / Drawbar performance / Gear 3-Direct used for power test. / Gear 2-TA used for pull test. |
|---|---|
| Fuel use | 12.0 gal/hour (45.4 l/hour) / 5.7 gal/hour (21.6 l/hour) |
| Max power | 57.29 hp (42.7 kW) |
| Max pull | 7,981 lbs (3620 kg) |
| Power at rated engine speed | 66.30 hp (49.4 kW) |
Nebraska Tractor Test 1154
| Description | Gasoline hydrostatic 2WDNovember 14 - December 3, 1973Link: Nebraska Tractor Test 1154 file / PTO performance / Drawbar performance |
|---|---|
| Fuel use | 6.9 gal/hour (26.1 l/hour) / 5.8 gal/hour (22.0 l/hour) / 7.7 gal/hour (29.1 l/hour) |
| Max power | 53.86 hp (40.2 kW) |
| Max pull | 8,427 lbs (3822 kg) |
| Power at rated engine speed | 69.61 hp (51.9 kW) |
| Power at rated PTO speed | 64.10 hp (47.8 kW) |
Nebraska Tractor Test 1155
| Description | Diesel hydrostatic 2WDNovember 14 - December 3, 1973Link: Nebraska Tractor Test 1155 file / PTO performance / Drawbar performance |
|---|---|
| Fuel use | 5.6 gal/hour (21.2 l/hour) / 5.3 gal/hour (20.1 l/hour) / 5.6 gal/hour (21.2 l/hour) |
| Max power | 53.10 hp (39.6 kW) |
| Max pull | 8,310 lbs (3769 kg) |
| Power at rated engine speed | 69.51 hp (51.8 kW) |
| Power at rated PTO speed | 65.41 hp (48.8 kW) |
References
| Description | Farm Equipment Reference Catalog published in 1972, by International Harvester |
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Tractor Tests
| Description | NTTL 1151: 312 diesel Torque Amplifier 2WD / NTTL 1152: gasoline Torque Amplifier 2WD / NTTL 1154: gasoline hydrostatic 2WD / NTTL 1155: diesel hydrostatic 2WD |
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