Specifications, Service and Repair of Farm and Lawn Tractors

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John Deere 6120 Tractor Specs

John Deere 6120 Engine Specifications

Engine Make - John Deere
Engine Model - PowerTech PWL
Number of Cylinders - 4
Advertised Engine Power, Rated, hp (kW) - 120 (88)
Maximum Engine Power, hp (kW) - 124 (91)
Rated Engine Speed, rpm - 2200
Power Boost, hp (kW) - 4 (3)
Fuel Tank capacity, gal (L) - 44.4 (168)
Diesel Exhaust Fluid (DEF) tank capacity, gal (L) - 2.9 (10.9)
Displacement, cu in (L) - 275 (4.5)
Engine Bore, in (mm) - 4.17 (106)
Engine Stroke, in (mm) - 5.00 (127)
Block Design, Replaceable Liners - Wet-sleeve
Aspiration, Turbocharged or Naturally Aspirated - Wastegate turbocharged, air-to-air aftercooled
Fuel System Description - High Pressure Common Rail
Fuel System Control, Electronic or Mechanical - Electronic
Fuel Injection to combustion chamber, Direct or Indirect - Direct
Emission Level, US EPA Tier - Tier 4 Final
Selective Catalytic Reduction (SCR) w/Diesel Exhaust Fluid (DEF) - SCR with DEF
Exhaust Gas Recirculation (EGR) - Cooled EGR
Cleanup Catalyst (CUC) - Ammonia Oxidation Catalyst
Diesel Oxidation Catalyst (DOC) - DOC standard
Exhaust Pipe, Vertical stack or Horizontal - Vertical stack
Cooling System Fan Drive Type - Belt
Electrical System Rating, Volts - 12
Alternator Rating, Amps - 90

JD 6120 Transmission Configuration

Manufacturer's Description - 12F/12R PowrReverser
Transmission Type - 3 synchronized speeds in 4 ranges
Number of Forward / Reverse Speeds - 12F / 12R
Maximum Speed Forward, mph (kph) - 19.6 (31.6)
Creeper Range Available - No
Shuttle (Forward-Reverse) Available - Standard

Optional Transmission 1

Manufacturer's Description - 24F/24R PowrReverser, 25 mph
Transmission Type - 3 speeds in 4 ranges plus Hi-Lo
Number of Forward / Reverse Speeds - 24F / 24R

John Deere 6120 Tractor PTO (Power Take Off)

PTO Horsepower, Basic / Optional Transmission, hp (kW) - 102 (76)
PTO Speeds, rpm - 540 / 1000
Power Take Off operational Type - Independent

Wheel Configuration

Drive Wheels - 2WD / 4WD
Steering Configuration - Front Steer

Rear Axle Assembly

Final Drive Location and Description - Inboard planetary
Axle Output End, Flange or Bar - Flange
Axle Bar Diameter, in (mm) - No bar axle

Front Axle

Suspended Front Axle Available - No

Brakes

Service Brake Type - Wet disk

John Deere 6120 Hydraulic System

Hydraulic System Type - Open center
Main Hydraulic Pump Type - External gear
Implement Pump Flow, gpm (Lpm) - 20 (75.7)
Optional Pump Flow, gpm (Lpm) - No option
Number of Standard Remote Valves - 2 std; 3rd opt.

JD 6120 Tractor 3-Point Hitch Features

3-Point Hitch Category - Category 2
Optional Hitch Category - No option
Draft Sensing or Lift Control - Draft sensing optional
Draft Link Ends Telescopic - Yes
Standard Lift Capacity 24 Inches behind pin, lb (kg) - 5,500 (2500)
Optional Lift Capacity 24 Inches behind pin, lb (kg) - 7,300 (3318)

Drawbar

Drawbar Description - Category 2, swinging

Wheelbase

Wheelbase, 2WD, in (mm) - 96.7 (2456)
Wheelbase, MFD/4WD or Track, in (mm) - 96.5 (2450)

JD 6120 Dimensions

Length, 2WD, incl. Hitch/Drawbar, in (mm) - 171 (4341)
Length, MFD/4WD or track, incl. Hitch/Drawbar, in (mm) - 185 (4704)
Height to Top of Cab, in (mm) - 108.5 (2756)
Height to Top of ROPS raised, in (mm) - 112.5 (2858)
Overall Width, with standard wheels or tracks, in (mm) - 96.5 (2451) flange-to-flange

Weight (w/Tires)

Weight, 2WD w/ROPS, lb (kg) - 8,960 (4064)
Weight, MFD/4WD w/ROPS, lb (kg) - 9,410 (4268)
Weight, 2WD w/Cab, lb (kg) - 9,780 (4436)
Weight, MFD/4WD or Tracks w/Cab, without ballast, lb (kg) - 10,240 (4645)
Weight, Total allowable, w/maximum ballast, lb (kg) - 14,250 (6464)

Tires

Front Tire Size, 2WD - 10.00-16,8PR F2
Front Tire Size Width, MFD/4WD - 380/85 R24, 8PR R1W
Rear Tire Size Width - 460/85 R38, 8PR R1W

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