John Deere 8450

Name: John Deere 8450
Brand: John Deere

Power

225 hp

Production

1982-1988

Engine

Intercooled turbocharged diesel, 6-cylinder

Transmission

Quad-Range

Weight

29150 lbs [13222 kg]

Drive

4WD

Over 200 HP 1980s

From the same series:

8650

Introduction

John Deere 8450 Four-Wheel Drive Tractor

The John Deere 8450 is a heavy-duty four-wheel drive tractor produced between 1982 and 1988 in Waterloo, Iowa. Part of the replacement lineup for the 40-series tractors, this model was designed to emphasize operational efficiency, specifically for large-scale planting and cultivation tasks.

Engine and Performance

The tractor is powered by a 7.6-liter (466 cubic inch) six-cylinder turbocharged and intercooled diesel engine. It generates a rated power of 225 hp at 2100 RPM. The engine features a 15.5:1 compression ratio and liquid cooling, ensuring sustained performance during intensive agricultural operations.

Transmission and Drivetrain

Equipped with a Quad-Range transmission, the 8450 offers 16 forward and 6 reverse gears. The system utilizes a partial power shift design with hydraulic wet disc clutches. Operators must stop the tractor to select one of the four ranges, while the power shift allows for clutchless transitions between speeds within each range.

Hydraulics and Hitch

The hydraulic system is a closed-center, constant-pressure type, capable of delivering a pump flow of 32 gpm (121.1 lpm). It supports between two and four valves. The rear three-point hitch is rated as category 3/3N and provides a lift capacity of 9,262 lbs, featuring lower-link draft sensing for precise implement control.

Operator Environment and Mechanical Features

The tractor features the Sound-Gard cab, which includes factory-installed air conditioning to reduce operator fatigue. Mechanical control is enhanced by articulated power steering, power wet disc brakes, and electro-hydraulic differential locks on both the front and rear axles to improve traction in challenging field conditions.

Conclusion

"The John Deere 8450 is engineered for demanding field work, offering a balance of high-capacity hydraulic output and robust drivetrain durability. Its design, characterized by an articulated chassis and adaptable dual-wheel configurations, makes it a specialized tool for farmers requiring significant power for tillage, planting, and cultivation."

Introduction

Production Information of John Deere, 8450

The production information of the tractor (8450) includes details about its manufacturing.

The John Deere model 8450 was introduced, along with the 8650 and 8850, in 1982 as replacements for the 40-series four-wheel drive tractors. Efficiency was the focus of Deere's advertising for these tractor models. Deere promoted the ability of the 8450 to perform planting and cultivation work, the duals could be set to navigate 30-inch crop rows. The 8450 also had a full-power PTO available, along with Load-and-Depth control on the three-point hitch.

Original price was $78,707 in 1983

Four-wheel Drive (4WD) tractor

Built in Waterloo, Iowa, USA


Manufacturer	John Deere

Dimension and Tires Information of John Deere, 8450

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	29150 lbs [13222 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	27560 lbs [12501 kg]


Ag front	18.4-34
	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	18.4-34
	20.8-34
	20.8-38
	30.5R32
	20.8-34
	30.5R32
	30.5-32

Engine Specifications of John Deere, 8450

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	466 ci [7.6 L]
Compression	15.5:1
Bore/Stroke	4.5625x4.75 inches [116 x 121 mm]
Coolant capacity	42 qts [39.7 L]
Oil capacity	20 qts [18.9 L]
Firing order	1-5-3-6-2-4
Rated RPM	2100
Power	225 hp [167.8 kW]

Transmission Information of John Deere, 8450Y

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, 8450Y

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

Four-wheel drive

Power 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, 8450Y

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, 8450

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, 8450

Hitch category and rear/front lift capacity.


Rear Type	3/3N
Control	Lower-link draft sensing
Rear lift	9,262 lbs [4201 kg]

Electrical System of John Deere, 8450

Battery voltage, charging system and ground.


Ground	Negative
Battery CCA	800
Batteries	2
Charging system	Alternator
Battery volts	6
Charging amps	110

Frequently asked questions

How much horsepower does the John Deere 8450 have?

The John Deere 8450 delivers 225 HP.

What years was the John Deere 8450 produced?

The John Deere 8450 was produced in 1982-1988.

What engine does the John Deere 8450 have?

The John Deere 8450 is powered by a Intercooled turbocharged diesel, 6-cylinder engine.

What transmission does the John Deere 8450 use?

The John Deere 8450 uses a Quad-Range transmission.

How much does the John Deere 8450 weigh?

The John Deere 8450 weighs 29150 lbs [13222 kg].

Is the John Deere 8450 4WD?

The John Deere 8450 is available in 4WD.

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