This page provides a detailed comparison of the specifications for the Allis Chalmers 7040 and the John Deere 4930.
| Allis Chalmers 7040 | John Deere 4930 | |
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| Engine | ||
| Engine Manufacturer | Allis Chalmers | John Deere |
| Engine Model | 3500 Mark II | - |
| Engine Cooling Type | Liquid-cooled | Liquid |
| Engine Fuel Type | Diesel | Diesel |
| Engine Induction Type | Turbocharged | Turbocharged and 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 | 151 hp (112.6 kW) | 160 hp (119.3 kW) |
| Transmission | ||
| Transmission Type | Partial Power Shift | Partial Power Shift |
| Transmission Forward Gears | 20 | 16 |
| Transmission Reverse Gears | 4 | 4 |
| Dimensions | ||
| Length Value | 173.6 | 158.6 |
| Width Value | 95.5 | 90 |
| Operating Weight Value | 11700 lb (5307 kg) | 10523 lb (4773 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 | - |
| Hydraulic System Type | Closed Center | Closed Center |
| Operator Station Type | Acousta-Cab | - |
| Starter Type | Electric | Electric |
