This page provides a detailed comparison of the specifications for the Allis Chalmers 8030 and the John Deere 4640.
| Allis Chalmers 8030 | John Deere 4640 | |
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| Engine | ||
| Engine Manufacturer | Allis Chalmers | John Deere |
| Engine Model | 670T | John Deere |
| Engine Cooling Type | Liquid-cooled | Liquid-cooled |
| Engine Fuel Type | Diesel | Diesel |
| Engine Induction Type | Turbocharged | Turbocharged intercooled |
| Engine Cylinders | 6 | 6 |
| Engine Displacement Value | 426 ci (7.0 L) | 466 ci (7.6 L) |
| Engine Rated Rpm | 2300 | 2200 |
| Engine Power Output Value | 148 hp (110.4 kW) | 155 hp (115.6 kW) |
| Transmission | ||
| Transmission Type | Partial power shift | Partial power shift |
| Transmission Forward Gears | 16 | 16 |
| Transmission Reverse Gears | 4 | 6 |
| Dimensions | ||
| Length Value | 187 | 171 |
| Width Value | 93.4 | 96 |
| Operating Weight Value | 14200 lb (6441 kg) | 15700 lb (7121 kg) |
| Miscellaneous | ||
| Chassis | 4x2 2WD | 4x2 2WD |
| Drive Type | 2WD | 2WD |
| Front Tire Type | - | - |
| Rear Tire Type | - | - |
| Hitch Type | Three-Point Hitch | Three-Point Hitch |
| Hitch Category | III/II | III/IIIN |
| Hitch Position | Rear | Rear |
| Hitch Capacity Value | 6680 lb (3030 kg) | 7320 lb (3320 kg) |
| Hydraulic System Type | Closed-center load-sensitive | Closed center |
| Operator Station Type | Acousta cab | Sound-Gard cab |
| Starter Type | Electric | Electric |
