SPECS / COMPARISON
Compare models
Manufacturer-sourced values side by side. No performance equivalence or ranking is applied across different machine classes.
| Feature | Farmall 856Tractor | International Harvester 966Tractor |
|---|---|---|
| Tractor Type | Row-Crop Tractor | Row-Crop Tractor |
| Horsepower | 70.8 kW | 67.9 kW |
| Weight | 4670.0 kg | 5300.0 kg |
| Transmission Type | Two-speed power shift with dry disc clutch | Hydrostatic |
| Length | 416.0 cm | 419.0 cm |
| Years Made | 1967-1971 | 1971-1976 |
| Engine Model | International Harvester C-301 | International Harvester D414 |
| Engine Type | 4-stroke, liquid-cooled, inline | 4-stroke, liquid-cooled, inline |
| Fuel Type | Gasoline/LP-gas | Diesel |
| Cylinders | 6 | 6 |
| Displacement | 4932 cc | 6784 cc |
| Bore | 9.70 cm | 10.90 cm |
| Stroke | 11.20 cm | 12.09 cm |
| Rear PTO Type | Independent | Independent |
| Rear PTO Speed | 1000, 540/1000 RPM | 540 /1.000 RPM |
| Rated RPM | 2400 RPM | — |
| Compression Ratio | Gasoline: 7.7:1LP-gas: 8.8:1 | — |
| Starter | Electric | Electric |
| Height | 218.0 cm | 266.0 cm |
| Wheelbase | 266.0 cm | 266.0 cm |
| Fuel Tank Capacity | 181.7 l | 140.0 l |
| Oil Capacity | 8.5 l | 11.4 l |
| Coolant Capacity | 20.3 l | 22.7 l |
| Transmission Oil Capacity | 64.4 l | 85.2 l |
| Transmission Model | Torque Amplifier | — |
| Gears | 16 forward and 8 reverse | Infinite forward and reverse |
| Chassis | 4×2 2WD or 4×4 MFWD 4WD | 4×2 2WD or 4×4 MFWD 4WD |
| Max. Travel Speed | 14.9 km/h | 29.0 km/h |
| Brakes | Independent hydraulic disc | Independent hydraulic dry disc |
| Drawbar Category | II | II or IH Fast Hitch |
| Cabin Type | Cab with heat and A/C | Cab heat and A/C |
| Hitch Type | IH Fast Hitch | — |
| Steering Type | Hydrostatic power | Hydrostatic power |
| Front Tires | Ag: 7.50-16 | Ag: 9.5L-15 |
| Rear Tires | Ag: 16.9-38 | Ag: 18.4-34 |
| Lift Capacity | — | 2270.0 kg |
| Pump Flow | — | 45.4 LPM |
| Battery | — | Two 6V, 172 Ah |
| Ground Clearance | — | 35.0 cm |
| Hydraulic Capacity | — | 85.2 l |
| Hydraulic Type | — | Open center |
| Total Flow | — | 90.8 LPM |
| Steering Flow | — | 34.1 LPM |
| PTO Pump Flow | — | 11.4 LPM |
| Working Pressure | — | 137.9 bar |
| Valves | — | 1 to 4 |
| Source | heavyequipments.net archive (imported 2026-10) | heavyequipments.net archive (imported 2026-10) |
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