John Deere 3120
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| Production | |
| Manufacturer | John Deere |
| Row-Crop tractor | |
| Built in Mannheim, Baden-Württemberg, Germany | |
| John Deere 3120 Engine | |
| John Deere 5.0L 6-cyl diesel | |
| Fuel tank | 28 gal 106.0 L |
 Engine details ... | |
| John Deere 3120 Transmission | |
| 12-speed twos-peed power shift | |
 Transmission details ... |
| John Deere 3120 Power | |
| Engine (gross) | 86 hp 64.1 kW |
| Engine (net) | 80 hp 59.7 kW |
| PTO (claimed) | 70 hp 52.2 kW |
| Mechanical | |
| Two-wheel drive | |
| Final drives | planetary |
| Differential lock | mechanical rear |
| Power steering | |
| Hydraulic wet disc brakes | |
| Open operator station. Two-post ROPS available. | |
| Photos | |
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 John Deere 3120 photos... | |
| Hydraulics | |
| Type | closed center |
| Pressure | 2250 psi 155.1 bar |
| Tractor hitch | |
| Rear Type | II |
| Power Take-off (PTO) | |
| Rear PTO Type | 540/1000 |
| Dimensions & Tires | |
| Wheelbase | 97 inches 246 cm |
| Weight | 7717 lbs 3500 kg |
| Front tire | 7.50-18 |
| Rear tire | 16.9/14-34 |
 Full dimensions and tires ... | |
| 3120 Serial Numbers | |
| Location: | Serial number plate on the right side of the 3120 tractor frame, above the front axle. |
| Electrical | |
| Ground | negative |
| Battery volts | 12 |
| Battery AH | 88 |
| References | |
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| Derneue 3120 - der Schlepper mit hochster Nutzkraft published in 1969, by John Deere | |
| 3120 (OML25968) published in 1969 |
| Page information | |
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| TractorData is a family-owned small business located in Minnesota that has been providing reference information on tractors since 1999. | |
| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on January 9, 2023 | |
| http://techpubs.deere.com/ - Official operator manuals for purchase or download from Deere. |