Tractor · 2002Unverified
John Deere 6420
John Deere 6420 — Utility tractor · 94 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
94 hp
Max power
77.5 kW
Weight
10064 to 11110 pounds
Hover a source tag to verify
Overview
ManufacturerJohn DeereReference
Utility tractorReference
Built in Mannheim, Baden-Württemberg, GermanyReference
Original price$44,000 (2007)Reference
Two- or four-wheel driveReference
Steeringhydrostatic powerReference
Hydraulic wet disc brakesReference
Two-post ROPS. ConfortGard Cab optional.Reference
Variants
6420utility chassisReference
6420Llow-profile chassisReference
Engine
John Deere 4.5L 4-cyl dieselReference
Engine82.0 kWReference
Drawbar (tested)56.2 kWReference
John Deere PowerTech 4045HL070Reference
turbocharged dieselReference
4-cylinderReference
liquid-cooledReference
Displacement4.5 LReference
Bore/Stroke106 x 127 mmReference
EmissionsTier IReference
Power82.0 kWReference
Air cleanerdryReference
Rated RPM2300Reference
Idle RPM875-2510Reference
Operating RPM1000-2300Reference
Torque370.2 NmReference
Torque RPM1500Reference
Firing order1-3-4-2Reference
Starter volts12Reference
Starter power3.0 kWReference
Coolant capacity13.6 LReference
Intake valve clearance0.356 mmReference
Exhaust valve clearance0.457 mmReference
Oil capacity15.9 LReference
Oil change500 hReference
John Deere PowerTech 4045HL473Reference
Used a Denso High-Pressure Common Rail (HPCR) fuel injection system. Also engine model 4045HL475Reference
EmissionsTier IIReference
Idle RPM845-2465Reference
Torque469.2 NmReference
Max power77.5 kWReference
Power at rated engine speed70.3 kWReference
Max power56.2 kWReference
Transmission
12-speed fully synchronizedReference
16-speed partial power shiftReference
24-speed partial power shiftReference
infinitely variable transmissionReference
TransmissionJohn Deere SyncroPlusReference
Typefully synchronizedReference
Gears12 forward and 4 reverseReference
Clutchwet discReference
Oil capacity52.1 LReference
Oil typeJD HyGardReference
Three 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.Reference
TransmissionJohn Deere PowrQuadReference
Typepartial power shiftReference
Gears16 forward and reverseReference
Oil capacity49.0 LReference
Four 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.Reference
TransmissionJohn Deere PowrQuad PlusReference
Gears24 forward and reverseReference
Oil capacity50.0 LReference
Four 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.Reference
TransmissionJohn Deere IVTReference
Typeinfinitely variable transmissionReference
Gearsinfinite forward and reverseReference
Oil capacity60.0 LReference
Oil typeJD Hy-GardReference
Continuously-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.Reference
PTO & Hydraulics
PTO (claimed)67.1 kWReference
PTO (tested)77.5 kWReference
Hydraulic system51.9 LReference
Hydraulic system60.2 LReference
Typeclosed center pressue flow compensatedReference
Capacity51.9 LReference
Capacity60.2 LReference
Pressure200.0 barReference
Valves4Reference
Pump flow94.6 lpmReference
Rear TypeIIReference
Rear lift2152 kgReference
Rear PTOindependentReference
Rear PTO Type540Reference
Rear PTO Type540/1000Reference
Engine RPM540@2124Reference
Engine RPM540@2143 (reversible)Reference
Engine RPM1000@2208Reference
Front PTOoptionalReference
Front PTO Type1000Reference
Engine RPM1000@2185Reference
Power at rated PTO speed71.6 kWReference
Capacities
Fuel185.1 LReference
Max capacity7999 kgReference
Dimensions
Wheelbase240 cmReference
Weight10064 to 11110 poundsReference
Front tire10.00-16Reference
Rear tire18.4-34 (2WD)Reference
Standard tires (ag)Front: 10.00-16. Rear: 18.4-34 (2WD)Reference
Standard tires (ag)Front: 13.6-24. Rear: 18.4-34 (4WD)Reference
Length413 cmReference
Min Width156 cmReference
Height249 cmReference
Clearance (front axle)58 cmReference
Clearance (front axle)45 cmReference
Front tread149 to 258 cmReference
Front tread151 to 201 cmReference
Rear tread160 to 230 cmReference
Shipping4565 kgReference
Shipping4751 kgReference
Operating5039 kgReference
Max front axle5300 kgReference
Max front axle5499 kgReference
Max rear axle6497 kgReference
6420 Serial Numbers
Location:Serial number plate on the right side of the tractor's main frame.Reference
Electrical
GroundnegativeReference
Charging systemalternatorReference
Charging amps90Reference
Charging amps115Reference
Charging amps150Reference
Battery volts12Reference
Battery AH110Reference
Battery AH154Reference
Test results
Diesel AutoQuad 24-speed 4WDJanuary 2002 - February 2002, Link: OCED Tractor Test 2007 fileReference
PTO performanceReference
Fuel use20.8 l/hourReference
Fuel use21.2 l/hourReference
Drawbar performanceReference
Max pull4497 kgReference
Speeds
With 18.4x30 R1 rear tires.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.