International Harvester 634: all source data
All 66 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | International Harvester |
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| (no label) | Built in Doncaster, England |
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| Total built | 3,848 |
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Engine| (no label) | International Harvester 4.6L 4-cyl diesel |
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| Fuel tank | 20.4 gal | 77.2 L |
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Transmission| (no label) | 8-speed |
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Power| Engine | 66 hp | 49.2 kW |
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| PTO (claimed) | 59.3 hp | 44.2 kW |
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Mechanical| Drive | 4x2 2WD |
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| Drive | 4x4 4WD |
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| 2WD Steering | manual |
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| 4WD Steering | power |
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| (no label) | Mechanical disc brakes |
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| (no label) | Open operator station. Cab optional. |
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Hydraulics| Pressure | 2500 psi | 172.4 bar |
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| Pump flow | 10.4 gpm | 39.4 lpm |
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| Steering flow | 4.8 gpm | 18.2 lpm |
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| Steering press. | 1500 psi | 103.4 bar |
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Hitch| Rear Type | II |
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| Control | position and draft control |
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| Rear lift | 3360 lbs | 1524 kg |
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Pto| Rear PTO | independent |
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| Rear PTO Type | 540 (1.375) |
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| Engine RPM | 540@1458 |
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Dimensions| 2WD Wheelbase (2WD) | 86.8 inches | 220 cm |
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| 4WD Wheelbase (4WD) | 86.8 inches | 220 cm |
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| AWD Wheelbase (AWD) | 75 inches | 190 cm |
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| Weight | 6546 to 9574 pounds |
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| Front tire | 7.50-16 |
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| 2WD Rear tire (2WD) | 11-38 |
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Electrical| Charging system | generator |
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| Battery volts | 12 |
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| Battery AH | 95 |
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Engine
Engine detail| (no label) | International Harvester BD-281 |
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| (no label) | diesel |
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| (no label) | 4-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 281 ci | 4.6 L |
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| Bore/Stroke | 4.125x5.25 inches | 105 x 133 mm |
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| Power | 66 hp | 49.2 kW |
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| Rated RPM | 1600 |
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| Torque | 225 lb-ft | 305.1 Nm |
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| Torque RPM | 1000 |
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| Starter volts | 12 |
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Transmission
Transmission| Gears | 8 forward and 2 reverse |
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| Clutch | 330mm dry disc |
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Dimensions
Tires| 2WD Standard tires (ag) (2WD) | Front: 7.50-16. Rear: 11-38 |
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| 4WD Standard tires (ag) (4WD) | Front: 10-24. Rear: 12-38 |
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| AWD Standard tires (ag) (AWD) | Front: 14-30. Rear: 14-30 |
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Dimensions| 2WD Wheelbase (2WD) | 86.8 inches | 220 cm |
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| 4WD Wheelbase (4WD) | 86.8 inches | 220 cm |
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| AWD Wheelbase (AWD) | 75 inches | 190 cm |
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| 2WD Length (2WD) | 138 inches | 350 cm |
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| 4WD Length (4WD) | 139 inches | 353 cm |
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| AWD Length (AWD) | 150 inches | 381 cm |
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| Width | 65.5 inches | 166 cm |
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| Height (cab) | 96 inches | 243 cm |
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| 2WD Front tread | 52 to 61 inches | 132 to 154 cm |
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| 4WD Front tread | 53 to 66 inches | 134 to 167 cm |
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| AWD Front tread | 60 to 80 inches | 152 to 203 cm |
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| 2WD Rear tread | 56 to 72 inches | 142 to 182 cm |
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| 4WD Rear tread | 56 to 72 inches | 142 to 182 cm |
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| AWD Rear tread | 60 to 80 inches | 152 to 203 cm |
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Weight| 2WD Operating (2WD) | 6546 lbs | 2969 kg |
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| 4WD Operating (4WD) | 7694 lbs | 3489 kg |
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| AWD Operating (AWD) | 9574 lbs | 4342 kg |
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