John Deere 8450

John Deere 8450 Four-wheel Drive (4WD) tractor Technical Specifications

John Deere 8450 is a Row-Crop tractor that was produced by the John Deere between 1982 – 1988.

Below you will find detailed technical specifications for John Deere 8450 covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

John Deere 8450 Production

Manufacturer: John Deere
Type: Four-wheel Drive (4WD) tractor
Factory: Waterloo, Iowa, USA
Original price: $78,707 (1983 )
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.

John Deere 8450 Power

Engine: 225 hp
167.8 kW
PTO (claimed): 185 hp
138.0 kW
Drawbar (tested): 173.52 hp
129.4 kW
PTO (tested): 186.98 hp
139.4 kW

John Deere 8450 Electrical

Ground: negative
Charging system: alternator
Charging amps: 110
Batteries: 2
Battery CCA: 800
Battery volts: 6

John Deere 8450 Mechanical

Chassis: 4×4 articulated 4WD
Final drives: inboard planetary
Differential lock: electro-hydraulic front and rear
Steering: articulated power
Brakes: power wet disc
Cab: Sound-Gard cab with air-conditioning
Transmission: 16-speed partial power shift


Fuel: 185 gal
700.2 L
Hydraulic system: 37.5 gal
141.9 L


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

Tracktor Hitch

Rear Type: 3/3N
Control: lower-link draft sensing
Rear lift: 9,262 lbs
4201 kg

Power Take-off (PTO)

Rear PTO: independent*Optional
Clutch: hydraulic wet disc
Rear RPM: 1000 (1.75)

Title serial numbers

Location: Serial number plate on the rear of the tractor.
1982: 1000
1983: 2000
1984: 3501
1985: 5001
1986: 5501
1987: 6001
1988: 6501

how to read serial numbers…

What year is my John Deere 8450? Serial Number Decoder

The serial number list shows the first tractor built in each year. The other tractors for that year will have successively higher numbers. Your serial number should be between two of the stated numbers.

The list only includes the numbers of the first tractors produced in each year. Your serial should be somewhere between two numbers.Unless you happen to be the first person to own a tractor, your number will not appear on the list.

John Deere 8450 Engine detail

Engine Detail
John Deere
intercooled turbocharged diesel
Displacement: 466 ci
7.6 L
Bore/Stroke: 4.5625×4.75 inches
116 x 121 mm
Power: 225 hp
167.8 kW
Compression: 15.5:1
Rated RPM: 2100
Firing order: 1-5-3-6-2-4
Starter volts: 12
Oil capacity: 20 qts
18.9 L
Coolant capacity: 42 qts
39.7 L

John Deere 8450 Transmission overview

Engine Oil

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

John Deere 8450 Dimensions

Wheelbase: 125 inches
317 cm
Length: 223.5 inches
567 cm
Shipping weight: 27560 lbs
12501 kg
Operating weight: 29150 lbs
13222 kg
Front axle: Standard axle: 3.938 by 96 inches
100 by 2438 mm
Front axle: Long axle: 3.937 by 118.6 inches
99 by 3012 mm
Rear axle: Standard axle: 3.938 by 96 inches
100 by 2438 mm
Rear axle: Long axle: 3.937 by 118.6 inches
99 by 3012 mm

John Deere 8450 Tests

Nebraska Tractor Test 1436

Nebraska Tractor Test 1436
Diesel Quad-Range 4WD
May 12 – 27, 1982
Link: Nebraska Tractor Test 1436 file
PTO performance
Power at rated engine speed: 186.98 hp
139.4 kW
Fuel use: 11.9 gal/hour
45.0 l/hour
Drawbar performance
Max power: 173.52 hp
129.4 kW
Fuel use: 12.0 gal/hour
45.4 l/hour
Max pull: 26,567 lbs
12050 kg


Is John Deere 8450 a good tractor?

The John Deere 8450 is one of the great tractors in the John Deere stable, and it has earned John Deere a fantastic reputation.

How much oil does a John Deere 8450 take?

Check out the John Deere 8450 oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year John Deere made the 8450?

The John Deere 8450 was an agricultural tractor model made from 1982 – 1988

Where is the serial number on a John Deere 8450?

Lookup serial number plate on the rear of the tractor.

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