John Deere 8120T tractor specifications

2002 - 2005

2002 - 2005 8020 SeriesAgricultural Crawler tractor

Production

Production Manufacturer:John Deere
Type:Agricultural Crawler tractor
Factory:Waterloo, Iowa, USA

Variants

Variants 8120:wheeled tractor
8120T:crawler

2002 - 2005

8020 Series

Row-Crop tractor

Production

Production
Manufacturer:	John Deere
Type:	Row-Crop tractor
Factory:	Waterloo, Iowa, USA

Variants

Variants
8120:	wheeled tractor
8120T:	crawler

John Deere 8120 Power

John Deere 8120 Power
Engine (gross):	208 hp 155.1 kW
Engine (net):	200 hp 149.1 kW
Engine (max):	230 hp 171.5 kW
PTO (claimed):	170 hp 126.8 kW
Drawbar (tested):	148.45 hp 110.7 kW
PTO (tested):	199.71 hp 148.9 kW
power test details ...

John Deere 8120 Engine

John Deere 8120 Engine
John Deere 8.1L 6-cyl diesel
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
	4x4 MFWD 4WD
Steering:	hydrostatic power
Brakes:	hydraulic wet disc
Cab:	Cab standard.
Transmission:	16-speed full power shift
Transmission details ...

Capacity

Capacity
Fuel:	135 gal 511.0 L
	160 gal 605.6 L (optional)
Hydraulic system:	37 gal 140.0 L
	39.6 gal 149.9 L (ILS)
Front hubs:	3.6 qts 3.4 L
	4.2 qts 4.0 L (ILS)
Front diff.:	14.2 qts 13.4 L

Hydraulics

Hydraulics
Type:	closed center pressure-flow compensated (PFC)
Capacity:	37 gal 140.0 L
	39.6 gal 149.9 L (ILS)
Pressure:	2900 psi 200.0 bar
Valves:	5
SCV flow:	30 gpm 113.6 lpm
Total flow:	33.5 gpm 126.8 lpm *With standard 45cc pump
	42.5 gpm 160.9 lpm *Optional 57cc pump

Tractor hitch

Tractor hitch
Rear Type:	III,IIIN
Rear lift:	12,300 lbs 5579 kg
	15,180 lbs 6885 kg *Optional
Front Hitch:	IIIN*Optional
Front lift:	11000 lbs 4989 kg

Power Take-off (PTO)

Power Take-off (PTO)
Rear PTO:	independent
Clutch:	hydraulic wet discs
Rear RPM:	1000 (1.75)
	540/1000 (1.375 optional)
Engine RPM:	540@1975 1000@2200

Dimensions & Tires

Dimensions & Tires
2WD Wheelbase:	123.6 inches 313 cm
4WD Wheelbase:	116.9 inches 296 cm
ILS Wheelbase:	115.7 inches 293 cm
	118.9 inches 302 cm (long frame)
Weight:	19100 to 22450 pounds
Front tire:	11.00-24
Rear tire:	480/80R46
Full dimensions and tires ...

8120 Serial Numbers

8120 Serial Numbers
Location:	Rear of tractor.
photo of 8120 serial number
2002:	1001
2003:	10001
2004:	20001
2005:	30001
how to read serial numbers...

Electrical

Electrical
Ground:	negative
Charging system:	alternator
Charging amps:	150
Batteries:	2
Battery CCA:	925
Battery volts:	12

John Deere 8120T Power

John Deere 8120T Power Engine (gross):208 hp
155.1 kW
Engine (net):200 hp
149.1 kW
Engine (max):230 hp
171.5 kW
PTO (claimed):170 hp
126.8 kW

John Deere 8120T Engine

John Deere 8120T Engine John Deere 8.1L 6-cyl diesel Engine details ...

2002 - 2005

8020 Series

Agricultural Crawler tractor

Engine Detail

Engine Detail
John Deere
turbocharged diesel
6-cylinder
liquid-cooled inline
Displacement:	496 ci 8.1 L
Bore/Stroke:	4.56x5.06 inches 116 x 129 mm
Rated Power (ECE R24):	200 hp 149.1 kW
Rated Power (EC 97/98):	208 hp 155.1 kW
Maximum Power (ECE R24):	220 hp 164.1 kW
Maximum Power (EC 97/68):	230 hp 171.5 kW
Compression:	16.5:1
Rated RPM:	2200
Idle RPM:	900-2300
Operating RPM:	1500-2200
Starter volts:	12
Coolant capacity:	35.9 qts 34.0 L

Engine Oil

Engine Oil

Oil capacity:	22.7 qts 21.5 L
Oil change:	250 h

Mechanical

Mechanical Chassis:crawler
Steering:electro-hydraulic power
Brakes:hydraulic wet disc
Cab:Cab standard.
Transmission:16-speed full power shift
Transmission details ...

2002 - 2005

8020 Series

Agricultural Crawler tractor

Transmission

Transmission
Transmission:	John Deere PowerShift
Type:	full power shift
Gears:	16 forward and 4 reverse
Oil capacity:	260 qts 246.1 L

Speeds

Speeds
Fourth reverse at 1600 RPM.

Capacity

Capacity Fuel:130 gal
492.1 L
Hydraulic system:65 gal
246.0 L

Hydraulics

Hydraulics Type:closed center pressure flow compensated (PFC)
Capacity:65 gal
246.0 L
Pressure:2900 psi
200.0 bar
Valves:5
Pump flow:30 gpm
113.6 lpm
Total flow:33.5 gpm
126.8 lpm
42.5 gpm
160.9 lpm (optional)

Tractor hitch

Tractor hitch Rear Type:III/IIIN
Rear lift:15,180 lbs
6885 kg

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:independent
Rear RPM:1000 (1-3/4)

Dimensions & Tracks

Dimensions & Tracks Wheelbase:89 inches
226 cm
120 inches
304 cm (wide track option)
Weight:25,950 lbs
11770 kg
16,18, or 24 in tracks Full dimensions and tracks ...

2002 - 2005

8020 Series

Agricultural Crawler tractor

John Deere 8120T Tracks

John Deere 8120T Tracks
Size:	16,18, or 24 in tracks

Dimensions

Dimensions
Wheelbase:	89 inches 226 cm
	120 inches 304 cm (wide track option)
Length:	207 inches 525 cm
	219.6 inches 557 cm (with front weights)
Width:	103.7 inches 263 cm (min)
	150 inches 381 cm (max)
Height (cab):	122.9 inches 312 cm
Shiping weight:	25,950 lbs 11770 kg
Max weight:	31,500 lbs 14288 kg
Clearance (rear axle):	21.7 inches 55 cm
Clearance (drawbar):	17.7 inches 44 cm