This page provides a detailed comparison of the specifications for the John Deere 4100 and the John Deere 770.
| John Deere 4100 | John Deere 770 | |
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| Engine | ||
| Engine Manufacturer | Yanmar | Yanmar |
| Engine Model | 3TNE74 | 3TN82-RJX |
| Engine Cooling Type | Liquid-cooled | Liquid-cooled |
| Engine Fuel Type | Diesel | Diesel |
| Engine Induction Type | Natural aspirated | Natural aspiration |
| Engine Cylinders | 3 | 3 |
| Engine Displacement Value | 61 ci (1.0 L) | 83 ci (1.4 L) |
| Engine Rated Rpm | 2650 | 2600 |
| Engine Power Output Value | 20 hp (14.9 kW) | 23 hp (17.2 kW) |
| Transmission | ||
| Transmission Type | Partially synchronized | Unsynchronized gear |
| Transmission Forward Gears | 8 | 8 |
| Transmission Reverse Gears | 4 | 2 |
| Dimensions | ||
| Length Value | 103 | 87.8 |
| Width Value | 43 | 53.5 |
| Operating Weight Value | 1517 lb (688 kg) | 1929 lb (875 kg) |
| Miscellaneous | ||
| Chassis | 4x4 MFWD 4WD | 4x2 2WD |
| Drive Type | MFWD - Mechanical Front Wheel Drive | 2WD |
| Front Tire Type | - | - |
| Rear Tire Type | - | - |
| Hitch Type | Three-Point Hitch | Three-Point Hitch |
| Hitch Category | I | I |
| Hitch Position | Rear | Rear |
| Hitch Capacity Value | 926 lb (420 kg) | 816 lb (370 kg) |
| Hydraulic System Type | Open Center | Open center |
| Operator Station Type | Two-post ROPS | Open operator station with two-post ROPS |
| Starter Type | Electric | Electric |
