Tractorpedia.com
John Deere

John Deere 6420

The John Deere 6420 is a utility tractor produced from 2002 to 2006. It features a 110 hp John Deere PowerTech 4.5L 4-cylinder turbocharged diesel engine with Tier I emissions. The tractor offers multiple transmission options including fully synchronized, partial power shift, and infinitely variable transmission (IVT). It has a two- or four-wheel drive with hydrostatic power steering and hydraulic wet disc brakes. The 6420 has a rear PTO with independent operation and optional front PTO. It was built in Mannheim, Germany, and originally priced at $44,000 in 2007. The tractor is equipped with a closed center pressure flow compensated hydraulic system and a rear hitch type II with a lift capacity of 4745 lbs. Dimensions include a 94.5 inch wheelbase, 162.7 inch length, and weight ranging from 10,064 to 11,110 pounds.
Power110 hp
Founded2002 - 2006
Model6420
John Deere 6420 tractor
View Images

Technical Specifications

Detailed specifications and technical data for John Deere 6420

Power
Engine power110 hp (82.0 kW)
PTO (tested)103.9 hp (77.5 kW)
PTO (claimed)90 hp (67.1 kW)
Drawbar (tested)75.4 hp (56.2 kW)
Engine
Typeturbocharged diesel
ModelJohn Deere PowerTech 4045HL070
Power110 hp (82.0 kW)
Torque273 lb-ft (370.2 Nm)
Coolingliquid-cooled
Idle RPM875-2510
Cylinders4-cylinder
EmissionsTier I
Rated RPM2300
Torque RPM1500
Air cleanerdry
Bore/Stroke4.19x5.00 inches (106 x 127 mm)
Displacement276 ci (4.5 L)
Firing order1-3-4-2
Oil capacity16.8 qts (15.9 L)
Operating RPM1000-2300
Starter power4 hp (3.0 kW)
Starter volts12
Coolant capacity14.4 qts (13.6 L)
Oil change interval500 h
Intake valve clearance0.014 inches (0.356 mm)
Exhaust valve clearance0.018 inches (0.457 mm)
Capacity
Fuel48.9 gal (185.1 L)
Hydraulic system13.7 gal (51.9 L)
Hydraulic system (IVT)15.9 gal (60.2 L)
Variants
6420utility chassis
6420Llow-profile chassis
Electrical
Groundnegative
Battery AH110, 154
Battery volts12
Charging amps90, 115, 150
Charging systemalternator
Hydraulics
Typeclosed center pressue flow compensated
Valves4
Capacity13.7 gal (51.9 L)
Pressure2900 psi (200.0 bar)
Pump flow25 gpm (94.6 lpm)
Capacity (IVT)15.9 gal (60.2 L)
Mechanical
ROPSTwo-post ROPS. ConfortGard Cab optional.
DriveTwo- or four-wheel drive
BrakesHydraulic wet disc brakes
Steeringhydrostatic power
Production
TypeUtility tractor
Built inMannheim, Baden-Württemberg, Germany
Original price$44,000 (2007)
Years produced2002 - 2006
Transmission
Options12-speed fully synchronized,16-speed partial power shift,24-speed partial power shift,infinitely variable transmission
John Deere IVT
Typeinfinitely variable transmission
Gearsinfinite forward and reverse
Oil typeJD Hy-Gard
DescriptionContinuously-variable transmission with built-in creeper and left-hand reverser lever. Speed-adjusting dial sets the maximum speed for each band. Setting maximum speed of Band 1 to less than 2 KPH (1.3 MPH) engages creeper mode. Only available on cab tractors.
Oil capacity63.4 qts (60.0 L)
John Deere PowrQuad
Typepartial power shift
Gears16 forward and reverse
Clutchwet disc
Oil typeJD HyGard
DescriptionFour gears (1-4) in four ranges (A-D) with reverser lever. Clutchless power shift between gears (1-4) and direction changes (power shuttle). Range shifts (A-D) are synchronized, and may be shifted while the tractor is moving by using the clutch. Optional creeper adds an additional twelve speeds for 28 forward and reverse. The PowrQuad uses a gear-shift lever while the PowrQuad Plus (cab tractors only) offers push-button gear shifting.
Oil capacity51.8 qts (49.0 L)
John Deere SyncroPlus
Typefully synchronized
Gears12 forward and 4 reverse
Clutchwet disc
Oil typeJD HyGard
DescriptionThree gears (1-3) plus reverse (R) in four ranges (A-D). Directional, gear, and range changes are synchronized and may be shifting while moving by using the clutch. Optional creeper adds an additional nine forward and three reverse speeds for a total of 21-forward and 7-reverse. The SyncroPlus Power Reverser adds a fourth gear in the place of reverse, and includes a left-hand reverser lever, for 16 forward and reverse speeds.
Oil capacity55 qts (52.1 L)
John Deere PowrQuad Plus
Typepartial power shift
Gears24 forward and reverse
Clutchwet disc
Oil typeJD HyGard
DescriptionFour gears (1-4) in six ranges (A-F) with reverser lever. Push-button power shifting between gears (1-4) and power shuttle directional shifting using the reverser lever. Ranges (A-F) may be shifted on the move by using the clutch. Optional AutoQuad offers automatic gear shifting to match load.
Oil capacity52.8 qts (50.0 L)
Tractor hitch
Rear TypeII
Rear lift capacity4745 lbs (2152 kg)
Serial Numbers
LocationSerial number plate on the right side of the tractor's main frame.
Dimensions & Tires
Height98.3 inches (249 cm)
Length162.7 inches (413 cm)
Weight10064 to 11110 pounds
Min Width61.8 inches (156 cm)
Rear tire18.4-34 (2WD)
Wheelbase94.5 inches (240 cm)
Front tire10.00-16, 13.6-24 (4WD)
Rear tread63.1 to 90.6 inches (160 to 230 cm)
Front tread58.7 to 101.7 inches (149 to 258 cm) (2WD), 59.7 to 79.4 inches (151 to 201 cm) (4WD)
Max capacity17,635 lbs (7999 kg)
Max rear axle14,325 lbs (6497 kg)
Max front axle11,685 lbs (2WD) (5300 kg), 12,125 lbs (4WD) (5499 kg)
Shipping weight10,064 lbs (4565 kg), 10,474 lbs (4WD) (4751 kg)
Operating weight11,110 lbs (4WD cab) (5039 kg)
Clearance (front axle)23.1 inches (2WD) (58 cm), 18 inches (4WD) (45 cm)
Power Take-off (PTO)
Rear PTOindependent
Front PTOoptional
Engine RPM540@2124, 540@2143 (reversible), 1000@2208
Rear PTO Type540, 540/1000
Front PTO Type1000
Front PTO Engine RPM1000@2185

More John Deere models

View all John Deere models
John Deere 100FModel100F
John Deere 1010Model1010
John Deere 1010CModel1010C
John Deere 1020Model1020
John Deere 1020 VUModel1020 VU
John Deere 1023EModel1023E
John Deere 1025RModel1025R
John Deere 1026RModel1026R
John Deere 1030Model1030
John Deere 1030VUModel1030VU
John Deere 1035Model1035
John Deere 1040Model1040