Specifications, Service and Repair of Farm and Lawn Tractors


John Deere 6105R Tractor Specs

Engine Performance

Advertised Engine Power, Rated, hp (kW) - 105 (78.3)
Maximum Engine Power, hp (kW) - 125 (93.2)
Rated Engine Speed, rpm - 2100
Power Boost, hp (kW) - 20 (15)
Fuel Tank capacity, gal (L) - 58 (220) std; 70 (265) opt.
Diesel Exhaust Fluid (DEF) tank capacity, gal (L) - No DEF

John Deere 6105 R Tractor PTO Performance

PTO Horsepower, Basic / Optional Transmission, hp (kW) - 86 (64)
PTO Speeds, rpm - 540 / 540E / 1000
PTO operational Type (Independent; Live; Continuous) - Independent

John Deere 6105R Basic Engine Specification

Engine Make - John Deere
Engine Model - PowerTech PVX 4.5L
Number of Cylinders - 4
Displacement, cu in (L) - 276 (4.5)
Engine Bore, in (mm) - 4.17 (106)
Engine Stroke, in (mm) - 5.0 (127)
Block Design, Replaceable Liners - Wet replaceable
Aspiration, Turbocharged or Naturally Aspirated - Turbocharged, air-to-air aftercooled

Fuel System

Fuel System Description - High Pressure Common Rail
Fuel System Control, Electronic or Mechanical - Electronic
Fuel Injection to combustion chamber, Direct or Indirect Direct

Emission and Exhaust Treatment

Emission Level, US EPA Tier - Tier 4 Interim
Exhaust Gas Recirculation (EGR) - Cooled EGR
Cleanup Catalyst (CUC) - No
Diesel Oxidation Catalyst (DOC) - DOC standard
Diesel Particulate Filter (DPF) - DPF standard
Exhaust Pipe, Vertical stack or Horizontal - Vertical stack

Cooling System

Fan Drive Type - Viscous

Electrical System

System Rating, Volts - 14
Alternator Rating, Amps - 120 standard; 200 optional

John Deere 6105R Basic Transmission Configuration

Manufacturer's Description - AutoQuad PLUS ECO 24F/24R
Transmission Type - Semi-automatic, power shift
Number of Forward / Reverse Speeds - 24F / 24R
Clutch - hydraulically
Change of direction of travel - electrical, under load, without operating clutch
Number of gears - Speed ranges
24 forward gears, 24 reverse gears - 0.15 - 40 km/h (0.09 - 25 mph)
Maximum Speed Forward, mph (kph) - 25 or 31 (40 or 50)
Creeper Range Available - No
Shuttle (Forward-Reverse) Available - Standard

JD 6105R Tractor Optional Transmission 1

Manufacturer's Description - AutoPowr (IVT) 25 or 31 mph (40 or 50 kph)
Transmission Type - Infinitely Variable
Number of Forward / Reverse Speeds - Infinite

Optional Transmission 2

Manufacturer's Description - PowrQuad PLUS 16F/16R (19 mph/30kph)
Transmission Type - Semi-automatic, power shift
Number of Forward / Reverse Speeds - 16F / 16R
16 forward gears, 16 reverse gears - 0.29 - 40 km/h (0.18 - 25 mph)

Wheel or Track Configuration

Drive Wheels or Tracks; 2WD, 4WD, 2WD / 4WD, 2 Tracks or 4 Tracks - 2WD / 4WD
Steering Configuration: Front Steer, Frame Articulated, or Track-type Steer - Front Steering

Rear Axle Assembly

Final Drive Location and Description - Inboard Planetary
Axle Output End, Flange or Bar - Flange standard; Bar optional
Axle Bar Diameter, in (mm) - 3.13 (79.45)

Front Axle

Suspended Front Axle Available - Triple-Link Suspension optional


Service Brake Type - Wet disk

John Deere 6105R Hydraulic System

Hydraulic System Type - Closed-center, Pressure-Flow Compensated (PFC)
Main Hydraulic Pump Type - Axial piston
Delivery rate per minute at rated speed (35 cm3 pump) - 80 liters (21.1 U.S.gal.)
Delivery rate per minute at rated speed (45 cm3 pump) - 114 liters (30.1 U.S.gal.)
Implement Pump Flow, gpm (Lpm) - 30 (114)
Optional Pump Flow, gpm (Lpm) - No option
Number of Standard Remote Valves - 2 std; 3 or 4 opt

JD 6105R 3-Point Hitch Features

3-Point Hitch Category - Category 2 / 3N
Optional Hitch Category - No option
Draft Sensing or Lift Control - Draft sensing, lower link
Draft Link Ends Telescopic - Yes

3-Point Hitch Lift Capacity

Standard Lift Capacity 24 Inches behind pin, lb (kg) - 4,755 (2157)
Optional Lift Capacity 24 Inches behind pin, lb (kg) - 6,475 (2937)
Standard Lift Capacity at lift pin, lb (kg) - np
Optional Lift Capacity at lift pin, lb (kg) - 10,137 (4598)


Drawbar Description - Category 2, Swinging, adjustable

Wheelbase / Trackbase

Wheelbase, 2WD, in (mm) - 101.6 (2580)
Wheelbase/Trackbase, MFD/4WD or Track, in (mm) - 101.6 (2580)


Length, 2WD, incl. Hitch/Drawbar, in (mm) - 178.8 (4542)
Length, MFD/4WD or track, incl. Hitch/Drawbar, in (mm) - 178.8 (4542)

JD 6105 Tractor Vertical Dimensions

Height to Top of Cab, in (mm) - 113.7 (2887)
Height to Top of ROPS raised, in (mm) - No open ROPS

Width w/Tires or Tracks

Overall Width, with standard wheels or tracks, in (mm) - 100.6 (2555) to bar axle ends

Weight (w/Tires or Tracks)

Weight, 2WD w/ROPS, lb (kg) - No open ROPS
Weight, MFD/4WD w/ROPS, lb (kg) - No open ROPS
Weight, 2WD w/Cab, lb (kg) - np
Weight, MFD/4WD or Tracks w/Cab, without ballast, lb (kg) - 11,990 (5440)
Weight, Total allowable, w/maximum ballast, lb (kg) - 18,739 (8500)

Tire / Track Size

Front Tire Size, 2WD - 10.00-16, 10 ply, F2
Front Tire Size orTrack Width, MFD/4WD or Track - 12.4 R24 (320/85 R24) R1W
Rear Tire Size or Track Width - 16.9 R30 (420/85 R30) R1W

John Deere 6105 Tractor Hand clutch

Press Hand clutch button, the clutch separates. Ranges may be selected or the tractor can be halted. Release button, the clutch engages with modulation.

On tractors equipped with a seat switch (operator presence switch), the following applies:

If, within the last 3 seconds before the button is released, there was no weight on the seat and no actuation of the clutch pedal or brake pedal, the tractor does not move, even though the reverse drive lever is
in the forward or reverse position. A message appears on the Command Center. To make the tractor move, move the reverse drive lever to neutral and then back into the desired direction.

Optimum gear-shifting for driving under load (transport) with speed matching deactivated:

Select a range suitable for driving under load.
Engage the first gear.
Drive and shift up through the ranges until the top range is reached.
Shift up through the gears.

Optimum gear-shifting for driving under load (transport) with speed matching activated:

Select a range suitable for driving under load.
Engage the first gear.
Drive and shift up through the gears until the top gear is reached.
Select the next range; speed-matching automatically selects the gear that corresponds to travel speed.
Shift up through the gears and change ranges until desired travel speed is obtained.