This page provides a detailed comparison of the specifications for the David Brown 1690 and the John Deere 2840.
| David Brown 1690 | John Deere 2840 | |
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| Engine | ||
| Engine Manufacturer | J.I. Case | John Deere |
| Engine Cooling Type | Liquid-cooled | Liquid-cooled |
| Engine Fuel Type | Diesel | Diesel |
| Engine Induction Type | Naturally aspirated | Naturally aspirated |
| Engine Cylinders | 6 | 6 |
| Engine Displacement Value | 329 ci (5.4 L) | 329 ci (5.4 L) |
| Engine Rated Rpm | 2200 | 2500 |
| Engine Power Output Value | 90 hp (67.1 kW) | 89 hp (66.4 kW) |
| Transmission | ||
| Transmission Type | Synchromesh with hydraulic dry disc clutch | Two-speed power shift |
| Transmission Forward Gears | 12 | 12 |
| Transmission Reverse Gears | 4 | 6 |
| Dimensions | ||
| Length Value | - | 160 |
| Width Value | - | 90 |
| Operating Weight Value | 8755 lb (3971 kg) | 8700 lb (3946 kg) |
| Miscellaneous | ||
| Chassis | 4x2 2WD | 4x2 2WD |
| Drive Type | 2WD | 2WD |
| Front Tire Type | - | - |
| Rear Tire Type | - | - |
| Hitch Type | - | Category II |
| Hitch Category | II | Category 3 |
| Hitch Position | - | Rear |
| Hydraulic System Type | Open Center | Closed center |
| Operator Station Type | Two-post ROPS or Cab (optional) | Open operator station |
| Starter Type | Electric | Electric |
