John Deere 6620 Premium utility tractor: review and specs

The John Deere 6620 Premium is a 4WD utility tractor from the 6020 series. This tractor was manufactured by John Deere from 2003 to 2006. This second generation was manufactured from 2003 to 2006. The JD 6620 Premium is equipped with a 6.8 L (414.0 cu·in) six-cylinder diesel engine and one of three transmissions: PowrQuad Plus transmission with 24 forward and 24 reverse gears, AutoQuad Plus transmission with 24 forward and 24 reverse gears or AutoPowr IVT transmission transmission with infinite forward and reverse gears.

The JD 6620 Premium utility tractor used the John Deere 6068T 4V-CR engine. It is a 6.8 L, 6,785 cm², (414.0 cu·in) six-cylinder turbocharged intercooled diesel engine with 106.0 mm (4.17 in) of the cylinder bore and 127.0 mm (5 in) of the piston stroke. This engine produced 126.8 PS (93.2 kW; 125.0 HP) at 2,300 rpm of output power and 535.1 N·m (54.6 kg·m, 394.4 ft·lb) at 1,700 rpm of torque.

The John Deere 6620 Premium is equipped with hydrostatic power steering, hydraulic wet disc brakes, Cab (standard) and 207.0 liters (54.7 US gal.; 45.5 Imp. gal) fuel tank.

Following attachments are available for the JD 6620 Premium utility tractor:

John Deere 661 loader
John Deere 731 loader

John Deere 6620 Premium Specifications

General Specifications
Model	John Deere 6620 Premium
Length	4,720 mm (185.8 in)
Width	2,310 mm (90.9 in)
Height (cab)	2,850 mm (112.2 in)
Wheel base	2,640 mm (103.9 in)
Ground clearance	520 mm (20.5 in)
Weight (shipping)	5,340 kg (11,773 lbs)
Fuel tank capacity	207.0 liters (54.7 US gal.; 45.5 Imp. gal)
Battery	12V
Cabin type	Cab (standard)
Engine
Engine model	John Deere 6068T 4V-CR
Engine type	Four-stroke, liquid-cooled, inline
Cylinders	6
Fuel type	Diesel
Displacement	6.8 L, 6,785 cm², (414.0 cu·in)
Bore and stroke	106.0 mm X 127.0 mm (4.17 in X 5 in)
Horsepower	126.8 PS (93.2 kW; 125.0 HP) at 2,300 rpm
Torque	535.1 N·m (54.6 kg·m, 394.4 ft·lb) at 1,700 rpm
Starter	Electric
Oil capacity:	19.5 L (20.6 US. qt, 17.2 Imp. qt.)

Transmission and chassis
Chassis	4×4 MFWD 4WD
Steering type	Hydrostatic power
Brakes	Hydraulic wet disc
Differential lock	Electro-hydraulic wet disc
Transmission model	PowrQuad Plus
Transmission type	Partial power shift with Perma-Clutch wet disc clutch
Gears	24 forward and 24 reverse
Transmission model	AutoQuad Plus
Transmission type	Partial power shift with Perma-Clutch wet disc clutch
Gears	24 forward and 24 reverse
Transmission model	AutoPowr IVT
Transmission type	Infinitely variable transmission
Gears	Infinite forward and reverse
Tires
Front tires	Ag: 420/70R28
Rear tires	Ag: 18.4R38

Three-Point Hitch
Category	II/IIIN
Control type	Electronic lower link draft control
Lift capacity	7,420 kg (16,360 lbs)
PTO (Power take-off shaft)
Front PTO type	–
Front PTO speed	1000 rpm
Rear PTO type	Independent with electro-hydraulic clutch
Rear PTO speed	540/540E/1000 rpm
Hydraulic system
Hydraulic type	Pressure flow compensating (PFC)
Pressure	2900 psi (200.0 bar)
Pump flow	25.4 gpm (96.1 lpm)

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