John Deere

John Deere 990

The John Deere 990 is a compact utility tractor produced from 2000 to 2007. It features a Yanmar 2.0L 4-cylinder diesel engine delivering 40.4 hp gross and 38.5 hp net power. The tractor has a 9-speed partially synchronized collar shift transmission with 9 forward and 3 reverse gears. It offers two- or four-wheel drive options with planetary final drives and mechanical rear differential lock. The hydraulic system is open center with a capacity of 5.5 gallons and a pressure of 2262 psi. The tractor includes a live 540 RPM rear PTO with a two-stage clutch. Dimensions include a 68.9 inch wheelbase, 123 inch length, and weight ranging from 2594 lbs (2WD) to 3175 lbs (4WD). Attachments available include a 430 front-end loader and John Deere 8B backhoe. Electrical system features a 12-volt battery with 650 CCA and a 20 amp alternator.

Power40 hp

Founded2000 - 2007

Model990

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Technical Specifications

Detailed specifications and technical data for John Deere 990

Power

Engine (net)	38.5 hp (28.7 kW)
PTO (claimed)	35 hp (26.1 kW)
Engine (gross)	40.4 hp (30.1 kW)

Engine

Type	diesel, 4-cylinder, liquid-cooled
Model	Yanmar 4TNE84
Idle RPM	925-2875
Rated RPM	2700
Air cleaner	dry
Bore/Stroke	3.31x3.54 inches (84 x 90 mm)
Compression	18:1
Power (net)	38.5 hp (28.7 kW)
Displacement	121.7 ci (2.0 L)
Oil capacity	5.6 qts (5.3 L)
Power (gross)	40.4 hp (30.1 kW)
Starter power	2.7 hp (2.0 kW)
Starter volts	12
Coolant capacity	6.1 qts (5.8 L)

Capacity

Fuel	8.5 gal (32.2 L)
Hydraulic system	5.5 gal (20.8 L)

Electrical

Ground	negative
Battery CCA	650
Battery volts	12
Charging amps	20
Charging system	alternator

Hydraulics

Type	open center
Capacity	5.5 gal (20.8 L)
Pressure	2262 psi (156.0 bar)
Pump flow	8.5 gpm (32.2 lpm)
Total flow	13 gpm (49.2 lpm)
Steering flow	4.5 gpm (17.0 lpm)

Mechanical

ROPS	Two-post ROPS
Drive	Two- or four-wheel drive
Brakes	Wet disc brakes
Steering	power
Final drives	planetary
Differential lock	mechanical rear

Production

Category	Compact Utility tractor
Manufacturer	John Deere
Years produced	2000 - 2007

Attachments

Backhoe	John Deere 8B Backhoe
Backhoe weight	1260 lbs (571 kg)
Front-end loader	430 Loader
Backhoe swing arc	180°
430 Loader dump time	1.8s
Backhoe bucket force	2213 lbs (1003 kg)
Backhoe bucket width	12 inches (30 cm)
430 Loader dump angle	45°
430 Loader lower time	3.0s
430 Loader raise time	3.9s
Backhoe bucket widths	18 inches (45 cm), 24 inches (60 cm), 36 inches (91 cm)
Backhoe digging depth	102 inches (259 cm)
Backhoe loading height	82 inches (208 cm)
430 Loader bucket width	61 inches (154 cm)
Backhoe bucket rotation	180°
430 Loader rollback time	2.2s
Backhoe reach from pivot	133 inches (337 cm)
Backhoe transport height	81 inches (205 cm)
430 Loader reach (dumped)	25.3 inches (64 cm)
430 Loader reach (ground)	51.2 inches (130 cm)
Backhoe dipperstick force	2213 lbs (1003 kg)
430 Loader height (at pin)	101.9 inches (258 cm)
430 Loader breakout (at pin)	3,285 lbs (1490 kg)
430 Loader rollback (raised)	64°
430 Loader clearance (dumped)	78.3 inches (198 cm)
430 Loader lift (1.5m at pin)	1,943 lbs (881 kg)
430 Loader lift (full at pin)	1,102 lbs (499 kg)
430 Loader breakout (at 500mm)	2,306 lbs (1046 kg)
430 Loader lift (1.5m at 500mm)	1,724 lbs (782 kg)
430 Loader lift (full at 500mm)	915 lbs (415 kg)
430 Loader rollback (ground line)	30°

Transmission

Type	Collar Shift, partially synchronized
Gears	9 forward and 3 reverse
Notes	Three gears (1-3) plus reverse in three ranges (A-C). Gears may be shifting on the move by using the clutch. The tractor must be stopped to shift ranges.
Oil capacity	22 qts (20.8 L)

Tractor hitch

Rear Type	I
Rear lift (at 24"/610mm)	1,573 lbs (713 kg)

Dimensions & Tires

Length	123 inches (312 cm)
Wheelbase	68.9 inches (175 cm)
Front tire	6.5-16
Rear tread	46.2 inches (117 cm)
Weight 2WD	2594 lbs (1176 kg)
Weight 4WD	3175 lbs (1440 kg)
Max Drawbar	825 lbs (374 kg)
2WD Rear tire	14.9-24
Height (ROPS)	84.2 inches (213 cm)
Height (hood)	54 inches (137 cm)
Max rear axle	5292 lbs (2400 kg)
Max front axle	5513 lbs (2500 kg)
2WD Front tread	48.2 inches (122 cm)
4WD Front tread	53.6 inches (136 cm)
4WD Standard tires (ag)	Front: 8-16. Rear: 14.9-24