John Deere 9120 Specs ( 2002-2007 )
Overview
The John Deere 9120 is a four-wheel drive farm tractor manufactured in Waterloo, Iowa, from 2002 to 2007. It is equipped with an 8.1L 6-cylinder turbocharged diesel engine rated at 280 hp and was available with either an 18-speed full powershift or a 24-speed partial power shift transmission.
Ideal Applications
Tested Drawbar and PTO Performance:
In OCED Tractor Test 1810, the 9120 demonstrated a maximum pull of 35,211 lbs and recorded 262.97 hp at rated PTO speed with a fuel consumption rate of 14.5 gal/hour.
Transmission and Drive Configuration:
The tractor features a 4WD articulated hydrostatic steering system and was offered with a 24-speed PowerSync transmission or an 18-speed full power shift transmission providing 6 reverse gears.
Hydraulic and Hitch Specifications:
This model includes a closed-center pressure/flow compensated hydraulic system with a 44 gpm total flow and a Category III rear hitch capable of lifting 13,871 lbs.
Production
| Description | Built in Waterloo, Iowa, USA |
|---|---|
| Drive type | Four-wheel Drive (4WD) tractor |
| Manufacturer | John Deere |
Engine
| Engine type | John Deere 8.1L 6-cyl diesel |
|---|---|
| Air cleaner | dry |
| Bore/Stroke | 4.56x5.06 inches (116 x 129 mm) |
| Compression | 16.0:1 |
| Coolant capacity | 55 qts (52.1 L) |
| Description | John Deere / turbocharged diesel / 6-cylinder / liquid-cooled |
| Displacement | 496 ci (8.1 L) |
| Power | 280 hp (208.8 kW) |
| Rated RPM | 2100 |
| Starter volts | 12 |
| Oil capacity | 28 qts (26.5 L) |
| Drawbar (tested) | 226.02 hp (168.5 kW) |
| PTO (claimed) | 230 hp (171.5 kW) |
| PTO (tested) | 244.57 hp (182.4 kW) |
Transmission
| Description | Four ranges (A-D) and three gears (1-3) with high-low power shift. Synchronized shifting between ranges A-B, B-C, and C-D. Gear shifts are synchronized between 1-R, 1-2, and 2-3. Reverse gear does not operate in D range. |
|---|---|
| Gears | 24 forward and 6 reverse / 18 forward and 6 reverse |
| Oil capacity | 136 qts (128.7 L) |
| Transmission | John Deere PowerSync / John Deere Powershift |
| Type | partial power shift / full power shift |
| Transmission type | 24-speed partial power shift / 18-speed full power shift |
| Transmission type | 24-speed partial power shift / 18-speed full power shift |
Mechanical
| Description | Hydraulic wet disc brakes / CommandView cab standard with air-conditioning. |
|---|---|
| Drive type | Four-wheel drive |
| Steering | hydrostatic articulated |
Capacity
| Fuel | 270 gal (1022.0 L) |
|---|---|
| Hydraulic system | 27 gal (102.2 L) |
Hydraulics
| Capacity | 27 gal (102.2 L) |
|---|---|
| Pressure | 2900 psi (200.0 bar) |
| Pump flow | 30 gpm (113.6 lpm) |
| Total flow | 44 gpm (166.5 lpm) |
| Type | closed center pressure/flow compensated |
| Valves | 4 or 5 |
Hitch
| Rear lift | 13,871 lbs (6291 kg) |
|---|---|
| Rear Type | III |
PTO
| Rear PTO | independent |
|---|---|
| Rear PTO Type | 1000 |
Electrical
| Batteries | 2 |
|---|---|
| Battery CCA | 925 |
| Battery volts | 12 |
| Charging amps | 140 |
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| Clearance (drawbar) | 15 inches (38 cm) |
|---|---|
| Clearance (front axle) | 26.8 inches (68 cm) |
| Length | 274 inches (695 cm) |
| Operating weight | 35,375 lbs (620/70R46 duals) (16046 kg) |
| Shipping weight | 30,970 lbs (14047 kg) |
| Wheelbase | 137.8 inches (350 cm) |
| Width | 115.5 inches (293 cm) |
| Front tire | 20.8R42 |
| Rear tire | 20.8R42 |
| Weight | 30970 to 35375 pounds |
| Wheelbase | 137.8 inches (350 cm) |
| Ag front | 20.8R42 |
| Ag rear | 20.8R42 |
9120 Serial Numbers
| 2002 | 1001 |
|---|---|
| 2003 | 10001 |
| 2004 | 20001 |
| 2005 | 30001 |
| 2006 | 40001 |
| 2007 | 50001 |
| Description | FAQ: How to read a serial number table. |
| Location: | On the top-left of rear hinge member |
John Deere 9120 Height
| Cab | 137.5 inches (349 cm) |
|---|---|
| Exhaust | 140 inches (355 cm) |
| Hood | 97.5 inches (247 cm) |
OCED Tractor Test 1810
| Description | Diesel 18-speed 4WDSeptember 23 - 27, 2002Link: OCED Tractor Test 1810 file / PTO performance / Drawbar performance / Gear 7 used for power test. / Gear 1 used for pull test. |
|---|---|
| Fuel use | 14.6 gal/hour (55.3 l/hour) / 14.4 gal/hour (54.5 l/hour) / 14.5 gal/hour (54.9 l/hour) |
| Max power | 226.02 hp (168.5 kW) |
| Max pull | 35,211 lbs (15971 kg) |
| Power at rated engine speed | 244.57 hp (182.4 kW) |
| Power at rated PTO speed | 262.97 hp (196.1 kW) |
Speeds
| Description | With 20.8R42 tires. / With 20.8R42 tires. |
|---|