John Deere 6420

2002 - 2006

Utility tractor

Manufacturer

John Deere

Utility tractor

Built in Mannheim, Baden-Württemberg, Germany

Original price

$44,000 (2007)

6420

utility chassis

6420L

low-profile chassis

John Deere 4.5L 4-cyl diesel

Engine

110 hp 82.0 kW

PTO (claimed)

90 hp 67.1 kW

Drawbar (tested)

75.4 hp 56.2 kW

PTO (tested)

103.9 hp 77.5 kW

Two- or four-wheel drive

Steering

hydrostatic power

Hydraulic wet disc brakes

Two-post ROPS. ConfortGard Cab optional.

Fuel

48.9 gal 185.1 L

Hydraulic system

13.7 gal 51.9 L

15.9 gal (IVT) 60.2 L

Type

closed center pressue flow compensated

Capacity

13.7 gal 51.9 L

15.9 gal (IVT) 60.2 L

Pressure

2900 psi 200.0 bar

Valves

4

Pump flow

25 gpm 94.6 lpm

Rear Type

II

Rear lift

4745 lbs 2152 kg

Rear PTO

independent

Rear PTO Type

540

540/1000

Engine RPM

540@2124

540@2143 (reversible)

1000@2208

Front PTO

optional

Front PTO Type

1000

Engine RPM

1000@2185

Wheelbase

94.5 inches 240 cm

Weight

10064 to 11110 pounds

Front tire

10.00-16

Rear tire

18.4-34 (2WD)

Ground

negative

Charging system

alternator

Charging amps

90

115

150

Battery volts

12

Battery AH

110

154

High-Crop and High-Clearance Tractors published in 2004, by John Deere

Manufacturer

John Deere PowerTech 4045HL070

Configuration

turbocharged diesel, 4-cylinder, liquid-cooled

Displacement

276 ci 4.5 L

Bore/Stroke

4.19x5.00 inches 106 x 127 mm

Emissions

Tier I

Power

110 hp 82.0 kW

Air cleaner

dry

Rated RPM

2300

Idle RPM

875-2510

Operating RPM

1000-2300

Torque

273 lb-ft 370.2 Nm

Torque RPM

1500

Firing order

1-3-4-2

Starter volts

12

Starter power

4 hp 3.0 kW

Coolant capacity

14.4 qts 13.6 L

Intake valve clearance

0.014 inches 0.356 mm

Exhaust valve clearance

0.018 inches 0.457 mm

Oil capacity

16.8 qts 15.9 L

Oil change

500 h

Manufacturer

John Deere PowerTech 4045HL473

Configuration

turbocharged diesel, 4-cylinder, liquid-cooled

Used a Denso High-Pressure Common Rail (HPCR) fuel injection system. Also engine model 4045HL475

Displacement

276 ci 4.5 L

Bore/Stroke

4.19x5.00 inches 106 x 127 mm

Emissions

Tier II

Power

110 hp 82.0 kW

Air cleaner

dry

Rated RPM

2300

Idle RPM

845-2465

Torque

346 lb-ft 469.2 Nm

Torque RPM

1500

Firing order

1-3-4-2

Starter volts

12

Starter power

4 hp 3.0 kW

Coolant capacity

14.4 qts 13.6 L

Intake valve clearance

0.014 inches 0.356 mm

Exhaust valve clearance

0.018 inches 0.457 mm

Oil capacity

16.8 qts 15.9 L

Oil change

500 h

12-speed fully synchronized

16-speed partial power shift

24-speed partial power shift

infinitely variable transmission

Transmission

John Deere SyncroPlus

Type

fully synchronized

Gears

12 forward and 4 reverse

Clutch

wet disc

Oil capacity

55 qts 52.1 L

Oil type

JD HyGard

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.

With 18.4x30 R1 rear tires.

Transmission

John Deere PowrQuad

Type

partial power shift

Gears

16 forward and reverse

Clutch

wet disc

Oil capacity

51.8 qts 49.0 L

Oil type

JD HyGard

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.

With 18.4x30 R1 rear tires.

Transmission

John Deere PowrQuad Plus

Type

partial power shift

Gears

24 forward and reverse

Clutch

wet disc

Oil capacity

52.8 qts 50.0 L

Oil type

JD HyGard

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.

With 18.4x30 R1 rear tires.

Transmission

John Deere IVT

Type

infinitely variable transmission

Gears

infinite forward and reverse

Oil capacity

63.4 qts 60.0 L

Oil type

JD Hy-Gard

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.

Standard tires (ag)

Front: 10.00-16. Rear: 18.4-34 (2WD)

Front: 13.6-24. Rear: 18.4-34 (4WD)

Wheelbase

94.5 inches 240 cm

Length

162.7 inches 413 cm

Min Width

61.8 inches 156 cm

Height

98.3 inches 249 cm

Clearance (front axle)

23.1 inches (2WD) 58 cm

18 inches (4WD) 45 cm

Front tread

58.7 to 101.7 inches 149 to 258 cm (2WD)

Front tread

59.7 to 79.4 inches 151 to 201 cm (4WD)

Rear tread

63.1 to 90.6 inches 160 to 230 cm

Shipping

10,064 lbs 4565 kg

10,474 lbs (4WD) 4751 kg

Operating

11,110 lbs (4WD cab) 5039 kg

Max capacity

17,635 lbs 7999 kg

Max front axle

11,685 lbs (2WD) 5300 kg

12,125 lbs (4WD) 5499 kg

Max rear axle

14,325 lbs 6497 kg

Diesel AutoQuad 24-speed 4WD January 2002 - February 2002, Link: OCED Tractor Test 2007 file

PTO performance

Max power

103.9 hp 77.5 kW

Fuel use

5.5 gal/hour 20.8 l/hour

Power at rated engine speed

94.3 hp 70.3 kW

Fuel use

5.6 gal/hour 21.2 l/hour

Power at rated PTO speed

96.0 hp 71.6 kW

Fuel use

5.5 gal/hour 20.8 l/hour

Drawbar performance

Max power

75.4 hp 56.2 kW

Fuel use

5.5 gal/hour 20.8 l/hour

Max pull

9,915 lbs 4497 kg