SPECS / COMPARISON
John Deere 4420 vs Allis Chalmers 185
A detailed comparison of the John Deere 4420 and the Allis Chalmers 185. Click a model name to view its full specifications.
Weight
John Deere 44203760.0 kg (8289.4 lbs)
Allis Chalmers 1853950.0 kg (8708.2 lbs)
| Specification | John Deere 4420 Agricultural Tractors | Allis Chalmers 185 Agricultural Tractors |
|---|---|---|
| Tractor Type | Row-Crop Tractor | Row-Crop Tractor |
| Horsepower | 76.1 kW (102.1 HP) | — |
| Weight | 3760.0 kg (8289.4 lbs) | 3950.0 kg (8708.2 lbs) |
| Length | 426.0 cm (167.7 in.) | 401.0 cm (157.9 in.) |
| Years Made | 1970-1975 | 1970-1981 |
| Engine Model | John Deere | Allis-Chalmers |
| Engine Type | 4-stroke, liquid-cooled, inline | 4-stroke, liquid-cooled, inline |
| Fuel Type | Gasoline | Diesel |
| Cylinders | 6 | 6 |
| Displacement | 5391 cc (329.0 cu in.) | 4933 cc (301.0 cu in.) |
| Bore | 10.21 cm (4.02 in.) | 9.80 cm (3.86 in.) |
| Stroke | 11.00 cm (4.33 in.) | 10.79 cm (4.25 in.) |
| Rear PTO Type | Independent | Continuous |
| Rear PTO Speed | 540 /1000 RPM | 540; 540/1000 RPM |
| Torque Power | 1400 RPM | — |
| Torque Speed | 351.2 N·m (259.0 lb-ft) | — |
| Rated RPM | 2500 RPM | — |
| Compression Ratio | 16.7:1 | 16.0:1 |
| Battery | Two 6V | 12 V |
| Starter | Electric | Electric |
| Height | 209.0 cm (Steering Wheel Height: 82.3 in.) | 194.0 cm (76.4 in.) |
| Wheelbase | 255.0 cm (100.4 in.) | 251.0 cm (98.8 in.) |
| Fuel Tank Capacity | 129.1 l (34.1 gal) | 93.0 l (24.6 gal) |
| Oil Capacity | 13.0 l (3.4 gal) | 10.5 l (2.8 gal) |
| Coolant Capacity | 19.5 l (5.2 gal) | 16.0 l (4.2 gal) |
| Transmission Model | Syncro-Range | Allis-Chalmers Power Director |
| Final Drive | Planetary | — |
| Gears | 8 forward and 2 reverse | 8 forward and 2 reverse |
| Chassis | 4×2 2WD | 4×2 2WD |
| Max. Travel Speed | 10.6 km/h (Forward: 18.9 MPH (30.4 km/h) Reverse: 6.6 MPH) | 25.8 km/h (Forward: 15.9 MPH (25.6 km/h) Reverse: 16.0 MPH) |
| Brakes | Hydraulic wet disc | Differential mechanical band and disc |
| Drawbar Category | II | II |
| Cabin Type | Open operator station | Open operator station. Two-post ROPS and canopy |
| Steering Type | Power | Hydrostatic power |
| Front Tires | Ag: 10.00×16 | Ag: 7.50-16; 6.50-16; 7.50-20; 9.5L-15 |
| Rear Tires | Ag: 23.1×30 | Ag: 16.9-28; 13.6-38; 15.5-38; 18.4-28; 18.4-30 |
| Hydraulic Type | Closed center | Open |
| Transmission Type | — | Partial power shift |
| Width | — | 194.0 cm (76.4 in.) |
| Transmission Oil Capacity | — | 7.4 l (2.0 gal) |
| Hydraulic Capacity | — | 24.6 l (6.5 gal) |
| Total Flow | — | 75.7 LPM (20.0 GPM) |
| Valves | — | 2 |
Values come from the manufacturer-sourced model files; empty cells mean the property is not published for that model. No performance ranking is applied.