John Deere
3120
Farm tractor · 2005–2008 · 29 hp
John Deere3120
The John Deere 3120 is a farm tractor manufactured from 2005 to 2008. It features a Yanmar 3TNV84 engine, and two-post folding steering. The transmission is a hydrostatic type with infinite forward and reverse (3-range).
Engine
| Engine | Yanmar 3TNV84 |
|---|---|
| Fuel Type | diesel |
| Cylinders | 3 |
| Cooling | liquid-cooled |
| Displacement | 91.5 ci (1.5 L) |
| Bore | 3.3 in (84 mm) |
| Stroke | 3.54 in (90 mm) |
| Compression Ratio | 18.5 |
| Power Gross | 29.5 hp (22 kW) |
| Power Rated | 29.5 hp (22 kW) |
| Torque Peak | 66.7 lb-ft (90.4 Nm) |
| Torque Peak | 1,560 RPM |
| Fuel System | direct injection |
| Starter Volts | 12 |
| Oil Capacity | 5.1 qts (4.8 L) |
| Coolant Capacity | 5.6 qts (5.3 L) |
| Manufacturer | Yanmar |
| Rated | 2,600 RPM |
| Emissions | Tier II |
Transmission
| Transmission Type | hydrostatic |
|---|---|
| Transmission Model | Sauer-Danfoss eHydro |
| Gears | infinite forward and reverse (3-range) |
| Transmission Description | Controlled by two foot pedals and range shift lever. Tractor must be stopped before shifting ranges. Cruise control standard. SpeedMatch allows maximum speed to be limited. MotionMatch allows acceleration rate to be set. LoadMatch allows engine RPMs to be set, tractor will adjust speed to maintain RPMs. |
Hydraulics
| Type | open center |
|---|---|
| Pump Flow | 8.6 gpm (32.6 lpm) |
| Valves | 5 |
| Total Flow | 13.9 gpm (52.6 lpm) |
| System Capacity | 6.8 gal (25.7 L) |
Hitch
| Rear Type | I |
|---|---|
| Rear Lift | 2,530 lbs (1,147 kg) |
Dimensions
| Length | 120.2 in (305 cm) |
|---|---|
| Width | 52.4 in (133 cm) |
| Height | 57 in (144 cm) |
| Height Rops | 93.3 in (236 cm) |
| Wheelbase | 68 in (172 cm) |
| Rear Tread | 40.6 in (103 cm) |
Weight
| Weight | 3,000 lbs (1,360 kg) |
|---|
Tires & Tracks
| Front Ag | 7-14 |
|---|---|
| Rear Ag | 11.2-24 |
| Front Industrial | 25x8.5-14, 27x8.5-15 |
| Rear Industrial | 15-19.5, 43x16-20 |
Fuel
| Capacity | 13.5 gal (51.1 L) |
|---|
Steering
| Type | two-post folding |
|---|
Attachments
60" mid-mount mower deckJohn Deere 300X loaderJohn Deere 300CX loaderBackhoe
| Mower Deck | 60 in (152 cm) |
|---|---|
| Backhoe Model | John Deere 47 Backhoe |
Compatible Implements
| Model | Type | Width | Min HP |
|---|---|---|---|
| Land Pride BB3584 | Box Blades | 84" | 45 hp |
| Land Pride BB3596 | Box Blades | 96" | 45 hp |
| Land Pride BB3578 | Box Blades | 78" | 45 hp |
| Land Pride BB1272 | Box Blades | 72" | — |
| Land Pride BB1260 | Box Blades | 60" | — |
| Land Pride BB1248 | Box Blades | 48" | — |
| Land Pride BB1566 | Box Blades | 66" | — |
| Land Pride BB1572 | Box Blades | 72" | — |
| Land Pride BB1560 | Box Blades | 60" | — |
| Land Pride BB1266 | Box Blades | 66" | — |
| Land Pride BB1254 | Box Blades | 54" | — |
Checked: 3-point hitch category, PTO horsepower. Not checked: PTO speed (540/1000), hydraulic flow, 3-point lift capacity, rear remotes, ballast.
These implements meet this tractor's hitch and PTO-HP requirements — this is not a full compatibility guarantee. Confirm the remaining specs with your dealer before purchasing.