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John Deere 8120T

John Deere 8120T tractor
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The John Deere 8120T is an agricultural crawler tractor produced from 2002 to 2005 as part of the 8020 Series. It features a John Deere 8.1L 6-cylinder turbocharged diesel engine delivering up to 230 hp gross power. The tractor uses a 16-speed full power shift John Deere PowerShift transmission and has electro-hydraulic power steering with hydraulic wet disc brakes. It has a fuel capacity of 130 gallons and a hydraulic system capacity of 65 gallons. The 8120T is equipped with 24-inch tracks as standard and offers various track width options. It was built in Waterloo, Iowa, USA, and includes a standard cab. The tractor's rear hitch is a category III/IIIN with a lift capacity of 15,180 lbs, and it has an independent 1000 RPM rear PTO. Dimensions include a wheelbase of 89 inches (120 inches wide track option), length of 207 inches (219.6 inches with front weights), and a shipping weight of 25,950 lbs.
John Deere 8120Ttractorcrawler tractor8020 Series8.1L engine200 hp16-speed PowerShiftagricultural tractor
Power208 hp
Founded2002 - 2005
Model8120T

Technical Specifications

Detailed specifications and technical data for John Deere 8120T

Power

Engine (max):230 hp (171.5 kW)
Engine (net):200 hp (149.1 kW)
PTO (claimed):170 hp (126.8 kW)
Engine (gross):208 hp (155.1 kW)

Engine

Type:turbocharged diesel, 6-cylinder, liquid-cooled inline
Model:John Deere 8.1L 6-cyl diesel
Idle RPM:900-2300
Rated RPM:2200
Bore/Stroke:4.56x5.06 inches (116 x 129 mm)
Compression:16.5:1
Displacement:496 ci (8.1 L)
Oil capacity:22.7 qts (21.5 L)
Operating RPM:1500-2200
Starter volts:12
Coolant capacity:35.9 qts (34.0 L)
Rated Power (net):200 hp (149.1 kW)
Maximum Power (net):220 hp (164.1 kW)
Oil change interval:250 h
Rated Power (gross):208 hp (155.1 kW)
Maximum Power (gross):230 hp (171.5 kW)

Tracks

16-inch width:16 inches (40 cm)
18-inch width:18 inches (45 cm)
24-inch width:24 inches (60 cm)
30-inch width:30 inches (76 cm)
16-inch area on ground:2848 in² (1.8 m²)
18-inch area on ground:3204 in² (2.1 m²)
24-inch area on ground:4272 in² (2.8 m²)
30-inch area on ground:5340 in² (3.4 m²)
16-inch length on ground:89 inches (226 cm)
18-inch length on ground:89 inches (226 cm)
24-inch length on ground:89 inches (226 cm)
30-inch length on ground:89 inches (226 cm)

Capacity

Fuel:130 gal (492.1 L)
Hydraulic system:65 gal (246.0 L)

Variants

8120:wheeled tractor
8120T:crawler

Dimensions

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

Electrical

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

Hydraulics

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

Mechanical

Cab:standard
Drive:crawler
Brakes:Hydraulic wet disc brakes
Steering:electro-hydraulic power

Production

Type:Agricultural Crawler tractor
Series:8020 Series
Built in:Waterloo, Iowa, USA
Years produced:2002 - 2005

Transmission

Type:full power shift
Gears:16 forward and 4 reverse
Model:John Deere PowerShift
Notes:Fourth reverse at 1600 RPM.
Oil capacity:260 qts (246.1 L)

Tractor hitch

Rear Type:III/IIIN
Rear lift capacity:15,180 lbs (6885 kg)

Serial Numbers

Location:Rear of tractor

Power Take-off (PTO)

Rear PTO:independent
Rear PTO Type:1000 (1-3/4)

Related Models

John Deere 8110T

Model:8110T

John Deere 8220T

Model:8220T