John Deere
John Deere 6620 Premium
The John Deere 6620 Premium is a utility tractor from the 6020 Series produced between 2001 and 2006. It features a 6.8L 6-cylinder turbocharged intercooled diesel engine delivering 125 hp net power. The tractor has a 24-speed partial power shift transmission (PowrQuad Plus / AutoQuad II) and four-wheel drive with hydrostatic power steering. It includes wet disc brakes and a standard cab. The hydraulic system is closed center load sensing with 2900 psi pressure and 25.4 gpm pump flow. The rear hitch is category II/IIIN with a lift capacity of 16,360 lbs. The rear PTO is independent with 540/1000 rpm options. The tractor weighs 11,532 lbs and uses 14.9R28 front and 18.4R38 rear tires.
Power125 hp
Founded2001 - 2006
Model6620 Premium
Technical Specifications
Detailed specifications and technical data for John Deere 6620 Premium
Power
| Engine (net) | 125 hp (93.2 kW) |
|---|---|
| PTO (claimed) | 110 hp (82.0 kW) |
Tires
| Standard tires (ag) | Front: 14.9R28. Rear: 18.4R38 |
|---|
Engine
| Type | turbocharged intercooled diesel |
|---|---|
| Model | John Deere 6068T |
| Torque | 392.0 lb-ft (531.6 Nm) |
| Cooling | liquid-cooled |
| Starter | electric |
| Idle RPM | 850-2460 |
| Cylinders | 6-cylinder |
| Fuel tank | 54.7 gal (207.0 L) |
| Rated RPM | 2300 |
| Torque RPM | 1500 |
| Bore/Stroke | 4.19x5.00 inches (106 x 127 mm) |
| Displacement | 414.1 ci (6.8 L) |
| Firing order | 1-5-3-6-2-4 |
| Operating RPM | 1300-2300 |
| Starter volts | 12 |
| Rated Power (net) | 125 hp (93.2 kW) |
| Intake valve clearance | 0.014 inches (0.356 mm) |
| Exhaust valve clearance | 0.018 inches (0.457 mm) |
Dimensions
| Weight | 11,532 lbs (5230 kg) |
|---|---|
| Max capacity | 18,740 lbs (8500 kg) |
| Max rear axle | 15,210 lbs (6899 kg) |
| Max front axle | 9,039 lbs (4100 kg) |
| Max front axle (braked) | 9,921 lbs (4500 kg) |
Electrical
| Ground | negative |
|---|---|
| Battery volts | 12 |
| Charging amps | 90 / 115 |
| Charging system | alternator |
Hydraulics
| Type | closed center load sensing |
|---|---|
| Pressure | 2900 psi (200.0 bar) |
| Pump flow | 25.4 gpm (96.1 lpm) |
Mechanical
| Cab | standard |
|---|---|
| Drive | Four-wheel drive |
| Brakes | Wet disc brakes |
| Steering | hydrostatic power |
Production
| Type | Utility tractor |
|---|---|
| Series | 6020 Series |
| Years produced | 2001 - 2006 |
Transmission
| Type | partial power shift |
|---|---|
| Gears | 24 forward and reverse |
| Transmission | PowrQuad Plus / AutoQuad II |
Tractor hitch
| Rear Type | II/IIIN |
|---|---|
| Rear lift | 16,360 lbs (7420 kg) |
Power Take-off (PTO)
| Rear PTO | independent |
|---|---|
| Rear PTO Type | 540/1000 |
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