John Deere 8770 VS John Deere 7920 specs comparison

John Deere 8770

General Infos

Make	John Deere
Model	8770
Country	United states
Production	From 1993  Until 1996
Price	114,945  USD
Tractor type	Four wheel Drive (4WD) tractor
Fuel	diesel
Service repair manual	John Deere 8770 Manual

Dimensions, sizes and tires

AG front tires	24.5R-32
AG rear tires	24.5R-32
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	32,960 lbs or 14950 kg
Length	268.9 inches [683 cm]
Width	-
Height	-
Wheelbase	134 inches [340 cm]
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	619 ci or 10.1 L
Cylinders	6 cylinders
Engine power	300 hp or 223.7 kW
Engine RPM	2100 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	220 gal or 832.7 L
Oil capacity	33.8 qts or 32.0 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 8770 Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	925
Ground force	negative
Charging system	-
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	Power Shift
Trans type	full power shift
Trans gears	12 forward and 2 reverse
Clutch system	hydraulic wet disc

Cabine and mechanical specs

Wheel drive	4x4 articulated 4WD
Final drive	inboard planetary
Steering	hydrostatic power
Braking system	hydraulic wet discs
Cabin type	Sound-Gard cab standard
Differentiel lock	-

Hydraulics specifications

System	closed center pressure compensated
Valves	3 to 5
Pump flow	44.8 gpm or 169.6 lpm
SVC flow	33.3 gpm or 126.0 lpm
Steering flow	-
Tank capacity	38 gal or 143.8 L
Hydraulic pressure	2530 psi or 174.4 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	242.52 hp or 180.8 kW
Fuel consumption	15.8 gal/hour or 59.8 l/hour
Pulling power	33,464 lbs or 15179 kg

Power take-off (PTO) specs

Claimed power	256 hp or 190.9 kW
Real power	286.31 hp or 213.5 kW
Engine @RPM	-
PTO Clutch	hydraulic wet disc
Rear PTO	independent
Rear PTO RPM	1000 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	16.0 gal/hour or 60.6 l/hour

3 point hitch specifiations

Hitch system	draft sensing
Rear hitch	3
Rear hitch lift	14,980 lbs or 6794 kg
Front hitch	-
Front hitch lift	-

John Deere 7920

General Infos

Make	John Deere
Model	7920
Country	United states
Production	From 2004  Until 2007
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	John Deere 7920 Manual

Dimensions, sizes and tires

AG front tires	420/90R30
AG rear tires	480/80R46
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	17,603 lbs or 7984 kg
Length	212.2 inches [538 cm]
Width	96 inches [243 cm] (short axle)
Height	125.4 inches [318 cm]
Wheelbase	112.6 inches [286 cm]
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	496 ci or 8.1 L
Cylinders	6 cylinders
Engine power	-
Engine RPM	2100 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	103.5 gal or 391.7 L
Oil capacity	25.4 qts or 24.0 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 7920 Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	925
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	150 amps

Clutch and gearbox specs

Trans system	AutoPowr IVT
Trans type	infinitely variable transmission
Trans gears	infinite forward and reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x4 MFWD 4WD
Final drive	-
Steering	hydrostatic power
Braking system	hydraulic wet disc
Cabin type	Cab standard
Differentiel lock	-

Hydraulics specifications

System	closed-center pressure-flow compensated
Valves	7
Pump flow	32.2 gpm or 121.9 lpm
SVC flow	30 gpm or 113.6 lpm
Steering flow	-
Tank capacity	28.5 gal or 107.9 L
Hydraulic pressure	3046 psi or 210.0 bar
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	146.06 hp or 108.9 kW
Fuel consumption	9.9 gal/hour or 37.5 l/hour
Pulling power	23,206 lbs or 10526 kg

Power take-off (PTO) specs

Claimed power	170 hp or 126.8 kW
Real power	185.59 hp or 138.4 kW
Engine @RPM	540@1950 (rpm)
PTO Clutch	hydraulic wet discs
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	10.6 gal/hour or 40.1 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	3/3N
Rear hitch lift	10,050 lbs or 4558 kg
Front hitch	-
Front hitch lift	-

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