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Years in Production / 2002–2006

John Deere

6420

Explore the specifications, hardware, and original references for the John Deere 6420.

110hp

Source index power

MFWD Optional

Drive

2002–2006

Production years

John Deere

Manufacturer

6420 / 01

At a glance

Overview

2002 - 2006

Utility tractor

Alternative Additional Value: JD HyGard
Alternative Additional Value: JD Hy-Gard

Production

Utility tractor

Built in Mannheim, Baden-Württemberg, Germany

Manufacturer: John Deere
Original Price: $44,000 (2007)

Mechanical

Two- or four-wheel drive

Hydraulic wet disc brakes

Two-post ROPS. ConfortGard Cab optional.

Steering: hydrostatic power

Capacity

Fuel: 48.9 gal185.1 L
Hydraulic System: 13.7 gal51.9 L
Hydraulic System: 15.9 gal (IVT)60.2 L

Hydraulics

Type: closed center pressue flow compensated
Capacity: 13.7 gal51.9 L
Capacity: 15.9 gal (IVT)60.2 L
Pressure: 2900 psi200.0 bar
Valves: 4
Pump Flow: 25 gpm94.6 lpm

Hitch

Rear Type: II
Rear Lift: 4745 lbs2152 kg

Pto

Rear Pto: independent
Rear Type: 540
Rear Type: 540/1000
Engine Rpm: 540@2124
Engine Rpm: 540@2143 (reversible)
Engine Rpm: 1000@2208
Engine Rpm: 1000@2185
Front Pto: optional
Front Pto Type: 1000

Electrical

Ground: negative
Charging System: alternator
Charging Amps: 90
Charging Amps: 115
Charging Amps: 150
Battery Volts: 12
Battery Ah: 110
Battery Ah: 154

6420 / 02

Under the hood

Engine Detail (Option 1)

John Deere PowerTech 4045HL070

turbocharged diesel

4-cylinder

liquid-cooled

Displacement: 276 ci4.5 L
Bore Stroke: 4.19x5.00 inches106 x 127 mm
Emissions: Tier I
Power: 110 hp82.0 kW
Air Cleaner: dry
Rated Rpm: 2300
Idle Rpm: 875-2510
Operating Rpm: 1000-2300
Torque: 273 lb-ft370.2 Nm
Torque Rpm: 1500
Firing Order: 1-3-4-2
Starter Volts: 12
Starter Power: 4 hp3.0 kW
Coolant Capacity: 14.4 qts13.6 L
Intake Valve Clearance: 0.014 inches0.356 mm
Exhaust Valve Clearance: 0.018 inches0.457 mm
Cylinders: 4
Cooling: liquid-cooled
Oil Capacity: 16.8 qts15.9 L
Oil Change: 500 h

Engine Detail (Option 2)

John Deere PowerTech 4045HL473

turbocharged diesel

4-cylinder

liquid-cooled

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

Displacement: 276 ci4.5 L
Bore Stroke: 4.19x5.00 inches106 x 127 mm
Emissions: Tier II
Power: 110 hp82.0 kW
Air Cleaner: dry
Rated Rpm: 2300
Idle Rpm: 845-2465
Torque: 346 lb-ft469.2 Nm
Torque Rpm: 1500
Firing Order: 1-3-4-2
Starter Volts: 12
Starter Power: 4 hp3.0 kW
Coolant Capacity: 14.4 qts13.6 L
Intake Valve Clearance: 0.014 inches0.356 mm
Exhaust Valve Clearance: 0.018 inches0.457 mm
Cylinders: 4
Cooling: liquid-cooled
Oil Capacity: 16.8 qts15.9 L
Oil Change: 500 h

Engine Options

John Deere 4.5L 4-cyl diesel

6420 / 03

Gears & controls

Transmission Options

12-speed fully synchronized

16-speed partial power shift

24-speed partial power shift

infinitely variable transmission

Speeds

With 18.4x30 R1 rear tires.

6420 / 04

Size. Stance. Footprint.

Dimensions And Tires

Wheelbase: 94.5 inches240 cm
Weight: 10064 to 11110 pounds
Front Tire: 10.00-16
Rear Tire: 18.4-342WD

Tires And Tracks

Standard Tires Ag: Front: 10.00-16. Rear: 18.4-342WD
Standard Tires Ag: Front: 13.6-24. Rear: 18.4-344WD

6420 / 05

Tractor Photos

See it in action

Videos

Watch John Deere 6420 videos from their original YouTube creators.

2006 John Deere 6420 Tractor Walk Around & Operational Video $44,900

Video by DaporeBrothersLLC

Watch on YouTube ↗

6420 / 07

Tests (NTTL)

Oced Tractor Test2007

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

PTO performance

Drawbar performance

Max Power: 103.9 hp77.5 kW
Max Power: 75.4 hp56.2 kW
Fuel Use: 5.5 gal/hour20.8 l/hour
Fuel Use: 5.6 gal/hour21.2 l/hour
Power At Rated Engine Speed: 94.3 hp70.3 kW
Power At Rated Pto Speed: 96.0 hp71.6 kW
Max Pull: 9,915 lbs4497 kg