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| info | |
| 1972 - 1976 66 Series, Four-wheel Drive (4WD) tractor | |
| Next model: | International Harvester 4186 |
| Series next: | International Harvester 4366 |
| Production | |
| Manufacturer: | International Harvester |
| Original price (USD), $29,900 (1976 ), | |
| Capacity | |
| Fuel: | 100 gal [378.5 L] |
| 3-Point Hitch | |
| Rear Type: | III |
| Rear lift (at ends): | 6000 lbs [2721 kg] |
| Power Take-off (PTO) | |
| Rear PTO: | independent |
| Rear RPM: | 1000 |
| Dimensions & Tires | |
| Wheelbase: | 102 inches [259 cm] |
| Weight: | 15300 to 15900 pounds |
| Front tire: | 23.1-26 |
| Rear tire: | 23.1-26 |
| International Harvester 4166 Power | |
| Engine: | 175 hp [130.5 kW] |
| Drawbar (tested): | 127.55 hp [95.1 kW] |
| PTO (tested): | 150.63 hp [112.3 kW] |
| Mechanical | |
| Chassis: | 4x4 4WD |
| Final drives: | planetary |
| Steering: | hydraulic power |
| Brakes: | hydraulic expanding shoe |
| Cab: | Cab optional with available heat and air-conditioning. |
| Hydraulics | |
| Valves: | 3*Optional |
| Pump flow: | 16.5 gpm [62.5 lpm] |
| Electrical | |
| Charging system: | alternator |
| Charging amps: | 72 |
| Battery | |
| Number: | 2 |
| Volts: | 6 |
| info | |
| Bore/Stroke: | 4.30x5.00 inches [109 x 127 mm] |
| Power: | 175 hp [130.5 kW] |
| Fuel system: | direct injection |
| Compression: | 16:1 |
| Rated RPM: | 2400 |
| Starter volts: | 12 |
| Oil capacity: | 18 qts [17.0 L] |
| Coolant capacity: | 32 qts [30.3 L] |
| Engine Detail | |
| International Harvester DT-436, turbocharged diesel, 6-cylinder, liquid-cooled, 436 ci [7.1 L] |
| info | |
| Next model: | International Harvester 4186 |
| Series next: | International Harvester 4366 |
| Transmission | |
| Type: | sliding gear |
| Gears: | 8 forward and 4 reverse |
| Clutch: | dry disc |
| info | |
| Next model: | International Harvester 4186 |
| Series next: | International Harvester 4366 |
| Dimensions | |
| Weight: | 15900 lbs [7212 kg] |
| Weight (shipping): | 15300 lbs [6940 kg] |
| Wheelbase: | 102 inches [259 cm] |
| Length: | 194 inches [492 cm] |
| Width: | 103 inches [261 cm] |
| Height (steering wheel): | 93 inches [236 cm] |
| Height (exhaust): | 138 inches [350 cm] |
| Ground clearance: | 17 inches [43 cm] |
| Front tread: | 80 inches [203 cm] |
| Rear tread: | 80 inches [203 cm] |
| International Harvester 4166 Tires | |
| Ag front: | 23.1-26 |
| Ag rear: | 23.1-26 |