John Deere 8650

Name: John Deere 8650
Brand: John Deere

Power

290 hp

Production

1982-1988

Engine

Intercooled turbocharged diesel, 6-cylinder

Transmission

Quad-Range

Weight

30270 lbs [13730 kg]

Drive

4WD

Over 200 HP 1980s

From the same series:

8450

8850

Introduction

John Deere 8650 Four-Wheel Drive Tractor

The John Deere 8650 is a high-horsepower four-wheel drive tractor produced between 1982 and 1988 in Waterloo, Iowa. As a central model of the 50-series, this machine was engineered to provide year-round operational efficiency, moving beyond traditional tillage tasks to include row-crop applications such as planting and cultivation.

Engine and Performance

The tractor is powered by a 6-cylinder, 10.1-liter (619 ci) intercooled turbocharged diesel engine. This liquid-cooled power plant generates 290 hp at a rated engine speed of 2100 RPM. The engine features a 15.2:1 compression ratio and is equipped with a dual-element paper air cleaner with an aspirator to maintain performance in dusty field environments.

Transmission and Drivetrain

The 8650 utilizes a Quad-Range partial power shift transmission, offering 16 forward and 6 reverse gears. The system features a Perma-Clutch hydraulic wet disc clutch. Operation requires the tractor to be fully stopped to select one of the four main ranges; however, within each range, clutchless power shifting is available between speeds 1-2 and 3-4. A synchronized shift is possible between the second and third speeds within a range.

Hydraulics and Hitch

The hydraulic system is a closed-center, constant-pressure design with a pump flow capacity of 32 gpm (121.1 lpm). It supports between two and four remote valves. For implement management, the tractor is equipped with a Category III/IIIN rear hitch featuring lower-link draft sensing, capable of providing 9,260 lbs (4,200 kg) of lift capacity.

Operator Environment and Mechanical Features

The machine is equipped with the Sound-Gard cab, which includes air conditioning as standard to support operator endurance during long working days. Steering is achieved through an articulated power system, and traction is enhanced by electro-hydraulic differential locks on both the front and rear axles. Stopping power is provided by hydraulic wet disc brakes.

Conclusion

"With an operating weight of approximately 30,270 lbs and a 125-inch wheelbase, the John Deere 8650 is a heavy-duty platform suited for large-scale agricultural operations. Its versatility, supported by a full-power PTO and draft-control hitch, allows it to perform a wide spectrum of field tasks, from heavy tillage to precise row-crop work."

Introduction

Production Information of John Deere, 8650

The production information of the tractor (8650) includes details about its manufacturing.

The 8650 was the middle model of John Deere's 50-series four-wheel drive tractors that were first available in 1982. Efficiency was the advertising focus, noting that these tractors could be used throughout the season, not simply for tillage. The 8650 was able to plant and cultivate 30-inch rows, and perform a variety of field operations with its draft-control hitch and full-power PTO.

Original price was $97,562 in 1983

Four-wheel Drive (4WD) tractor

Built in Waterloo, Iowa, USA


Manufacturer	John Deere

Dimension and Tires Information of John Deere, 8650

This section sums up the dimension and tires information of the tractor.


Standard axle rear axle	3.938 by 96 inches [100 by 2438 mm]
Wheelbase	125 inches [317 cm]
Front axle	Standard axle: 3.938 by 96 inches [100 by 2438 mm]
Operating weight	30270 lbs [13730 kg]
Length	223.5 inches [567 cm]
Long axle rear axle	3.937 by 118.6 inches [99 by 3012 mm]
Front axle	Long axle: 3.937 by 118.6 inches [99 by 3012 mm]
Shipping weight	29320 lbs [13299 kg]
Rear tread	66 to 129 inches [167 to 327 cm]
Front tread	66 to 129 inches [167 to 327 cm]


Ag front	18.4-38
	20.8-38
	23.1-34
	24.5R32
	23.1-34
Ag front	24.5-32
	24.5R32
Ag rear	24.5-32
	30.5-32
Ag rear	18.4-38
	20.8-34
	20.8-38
	30.5R32
	20.8-34
	30.5R32
	30.5-32

Engine Specifications of John Deere, 8650

Get the specifications for the engine and if different options are available.

John Deere

Liquid-cooled

Intercooled turbocharged diesel

6-cylinder


Starter volts	12
Displacement	619 ci [10.1 L]
Air cleaner	Dual paper elements with aspirator
Bore/Stroke	5.12x5.00 inches [130 x 127 mm]
Coolant capacity	48 qts [45.4 L]
Oil capacity	28 qts [26.5 L]
Rated RPM	2100
Compression	15.2:1
Power	290 hp [216.3 kW]

Transmission Information of John Deere, 8650Y

Discover all variants of transmission available for this tractor model.

Transmission variants 1

Tractor must be stopped to select one of four ranges. Clutchless power shift between speeds 1-2 and 3-4 in range. A synchronized shift (using clutch) can be made between 2 and 3 in range.


Transmission	Quad-Range
Oil capacity	150 qts [142.0 L]
Clutch	Perma-Clutch hydraulic wet discs
Type	Partial power shift
Gears	16 forward and 6 reverse

Mechanical Specs of John Deere, 8650Y

This section summarizes all mechanical information such as the brake system and other specifications.

Four-wheel drive

Hydraulic wet disc brakes

Articulated power steering

Sound-Gard cab with air-conditioning


Final drives	Inboard planetary
Differential lock	Electro-hydraulic front and rear

Power Information of John Deere, 8650Y

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.


Rear PTO	Independent OptOptional
Clutch	Hydraulic wet disc
Rear PTO Type	1000 (1.75)

Hydraulics Specifications of John Deere, 8650

Hydraulic system type, pressure, pump flow and valves.


Type	Closed center constant-pressure
Pump flow	32 gpm [121.1 lpm]
Capacity	37.5 gal [141.9 L]
Valves	2 to 4

Three-Point Hitch of John Deere, 8650

Hitch category and rear/front lift capacity.


Rear Type	III/IIIN
Control	Lower-link draft sensing
Rear lift	9260 lbs [4200 kg]

Electrical System of John Deere, 8650

Battery voltage, charging system and ground.


Ground	Negative
Battery CCA	975
Batteries	2
Charging system	Alternator
Battery volts	6
Charging amps	110

Frequently asked questions

How much horsepower does the John Deere 8650 have?

The John Deere 8650 delivers 290 HP.

What years was the John Deere 8650 produced?

The John Deere 8650 was produced in 1982-1988.

What engine does the John Deere 8650 have?

The John Deere 8650 is powered by a Intercooled turbocharged diesel, 6-cylinder engine.

What transmission does the John Deere 8650 use?

The John Deere 8650 uses a Quad-Range transmission.

How much does the John Deere 8650 weigh?

The John Deere 8650 weighs 30270 lbs [13730 kg].

Is the John Deere 8650 4WD?

The John Deere 8650 is available in 4WD.

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