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| info | |
| 1975 - 1978 33 Series, Utility tractor | |
| Series next: | International Harvester 733 |
| Series back: | International Harvester 533 |
| Production | |
| Manufacturer: | International Harvester |
| Factory: | Neuss, Germany |
| Variants | |
| 633: | utility |
| 633E: | narrow |
| 633V: | vineyard |
| Capacity | |
| Fuel: | 15.85 gal [60.0 L] |
| Hydraulic system: | 3.2 gal [12.1 L] |
| 3-Point Hitch | |
| Rear Type: | II |
| Rear lift: | 3969 lbs [1800 kg] |
| Power Take-off (PTO) | |
| Rear PTO: | independent |
| Rear RPM: | 540 |
| Dimensions & Tires | |
| 2WD Wheelbase: | 81.5 inches [207 cm] |
| 4WD Wheelbase: | 79.9 inches [202 cm] |
| Weight: | 5158 to 5589 pounds |
| Front tire: | 6.50-16 |
| 2WD Rear tire: | 12.4/11-36 |
| International Harvester 633 Power | |
| Engine: | 52 hp [38.8 kW] |
| Mechanical | |
| Chassis: | 4x2 2WD, 4x4 MFWD 4WD |
| Brakes: | disc |
| Cab: | Open operator station. Cab optional with heater. |
| Hydraulics | |
| Capacity: | 3.2 gal [12.1 L] |
| Pump flow: | 8.6 gpm [32.6 lpm] |
| Electrical | |
| Charging system: | alternator |
| Battery | |
| Volts: | 12 |
| info | |
| Bore/Stroke: | 3.875x5.0625 inches [98 x 129 mm] |
| Power: | 52 hp [38.8 kW] |
| Rated RPM: | 2180 |
| Starter volts: | 12 |
| Engine Detail | |
| International Harvester D-179, diesel, 3-cylinder, liquid-cooled, 179 ci [2.9 L] |
| info | |
| Speeds: | With 12.4/11-36 rear tires. |
| Transmission | |
| Gears: | 8 forward and 4 reverse |
| Four gears (1-4) in two ranges, plus reverse range. | |
| info | |
| Series next: | International Harvester 733 |
| Series back: | International Harvester 533 |
| Dimensions | |
| 2WD Weight (shipping): | 5158 lbs [2339 kg] |
| 4WD Weight (shipping): | 5589 lbs [2535 kg] |
| 2WD Wheelbase: | 81.5 inches [207 cm] |
| 4WD Wheelbase: | 79.9 inches [202 cm] |
| Length: | 135.8 inches [344 cm] |
| Width: | 64.7 inches [164 cm] |
| Height: | 93.5 inches [237 cm] |
| Front tread: | 48.5 to 69.7 inches [123 to 177 cm] |
| Rear tread: | 56.2 to 76.9 inches [142 to 195 cm] |
| International Harvester 633 Tires | |
| 2WD Standard tires (ag): | Front: 6.50-16. Rear: 12.4/11-36 |
| 4WD Standard tires (ag): | Front: 10.5-20. Rear: 12.4/11-36 |
| 2WD Optional tires (ag): | Front: 7.50-16. Rear: 11.2/10-36 |
| 4WD Optional tires (ag): | Front: 10.5-18. Rear: 16.9/14-28 |