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SPECS / AGRICULTURAL TRACTORS
International Harvester 666 Specs
International Harvester 666 agricultural tractor specifications: tractor type Utility Tractor, weight 3200.0 kg, transmission type Partial power shift with dry disc clutch, years made 1972-1976.
Manufacturer specifications
| Specification | Metric | Imperial |
|---|---|---|
| Tractor Type | Utility Tractor | |
| Weight | 3200.0 kg | 7054.8 lbs |
| Transmission Type | Partial power shift with dry disc clutch | |
| Years Made | 1972-1976 | |
| Engine Model | International Harvester C291 | |
| Engine Type | 4-stroke, liquid-cooled, inline | |
| Fuel Type | Gasoline | |
| Cylinders | 6 | |
| Displacement | 4767 cc | 290.9 cu in. |
| Bore | 9.50 cm | 3.74 in. |
| Stroke | 11.20 cm | 4.41 in. |
| Rear PTO Type | Independent | |
| Rear PTO Speed | 540 RPM | |
| Compression Ratio | 7.5:1 | |
| Battery | 12 V | |
| Starter | Electric | |
| Wheelbase | 261.0 cm | 102.8 in. |
| Transmission Model | Torque-Amplifier | |
| Gears | 10 forward and 2 reverse | |
| Chassis | 4×2 2WD | |
| Max. Travel Speed | 4.8 km/h | Forward: 16.5 MPH (26.5 km/h) Reverse: 3.0 MPH |
| Brakes | Dry disc | |
| Drawbar Category | II | |
| Cabin Type | Open operator station or Two-post ROPS | |
| Steering Type | Hydrostatic power | |
| Front Tires | Ag: 7.50-16 | |
| Rear Tires | Ag: 15.5-38 |
Source: heavyequipments.net archive (imported 2026-10). Values may vary by variant and production year; seller claims are shown separately on the listing page.
