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Tractor · 1982Unverified

John Deere 8450

Name: John Deere 8450
Brand: John Deere

John Deere 8450 — Four-wheel Drive (4WD) tractor · 187 hp. Reference specifications; pending source verification.

The John Deere 8450 is a tractor rated at approximately 187 horsepower, placing it at the more powerful end of its class. This model was produced between 1982 and 1988. It features a 6-cylinder turbocharged intercooled diesel liquid-cooled engine paired with four-wheel drive and a powershift transmission. The operating weight of the 8450 is listed as 27560 to 29150 pounds, with a suitability for operations of 600–1,500 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

187 hp

Max power

129.4 kW

Weight

27560 to 29150 pounds

Catalogue coverage

Variants represented

Richest spec table

100 rows

Recorded power

187 hp

Recorded weight

12501 kg

Transmissions

16-speed partial power shift

Production years

1982-1988

Verified variants

1 linked source document displayed

Hover a source tag to verify

Overview

ManufacturerJohn DeereReference

Four-wheel Drive (4WD) tractorReference

Built in Waterloo, Iowa, USAReference

Original price was $78,707 in 1983Reference

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.Reference

Four-wheel driveReference

Final drivesinboard planetaryReference

Differential lockelectro-hydraulic front and rearReference

Articulated power steeringReference

Power wet disc brakesReference

Sound-Gard cab with air-conditioningReference

Engine

John Deere 7.6L 6-cyl dieselReference

Engine167.8 kWReference

Drawbar (tested)129.4 kWReference

John DeereReference

intercooled turbocharged dieselReference

6-cylinderReference

liquid-cooledReference

Displacement7.6 LReference

Bore/Stroke116 x 121 mmReference

Power167.8 kWReference

Compression15.5:1Reference

Rated RPM2100Reference

Firing order1-5-3-6-2-4Reference

Starter volts12Reference

Oil capacity18.9 LReference

Coolant capacity39.7 LReference

Power at rated engine speed139.4 kWReference

Max power129.4 kWReference

Transmission

16-speed partial power shiftReference

TransmissionQuad-RangeReference

Typepartial power shiftReference

Gears16 forward and 6 reverseReference

ClutchPerma-Clutch hydraulic wet discsReference

Oil capacity142.0 LReference

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.Reference

PTO & Hydraulics

PTO (claimed)138.0 kWReference

PTO (tested)139.4 kWReference

Hydraulic system141.9 LReference

Typeclosed center constant-pressureReference

Capacity141.9 LReference

Valves2 to 4Reference

Pump flow121.1 lpmReference

Rear Type3/3NReference

Controllower-link draft sensingReference

Rear lift4201 kgReference

Rear PTOindependentReference

Clutchhydraulic wet discReference

Rear PTO Type1000 (1.75)Reference

Capacities

Fuel700.2 LReference

Dimensions

Wheelbase317 cmReference

Weight27560 to 29150 poundsReference

Front tire18.4-34Reference

Rear tire18.4-34Reference

Ag front18.4-34Reference

Ag rear18.4-34Reference

Ag front24.5-32Reference

Ag front24.5R32Reference

Ag front30.5-32Reference

Ag front30.5R32Reference

Ag front20.8-34Reference

Ag front23.1-34Reference

Ag front20.8-38Reference

Ag rear24.5-32Reference

Ag rear24.5R32Reference

Ag rear30.5-32Reference

Ag rear30.5R32Reference

Ag rear20.8-34Reference

Ag rear23.1-34Reference

Ag rear20.8-38Reference

Length567 cmReference

Shipping weight12501 kgReference

Operating weight13222 kgReference

Front axle100 by 2438 mmReference

Front axle99 by 3012 mmReference

Standard axle rear axle100 by 2438 mmReference

Long axle rear axle99 by 3012 mmReference

John Deere 8450 attachments

bladeReference

8450 Serial Numbers

Location:Serial number plate on the rear of the tractor.Reference

19821000Reference

19832000Reference

19843501Reference

19855001Reference

19865501Reference

19876001Reference

19886501Reference

FAQ: How to read a serial number table.Reference

Electrical

GroundnegativeReference

Charging systemalternatorReference

Charging amps110Reference

Batteries2Reference

Battery CCA800Reference

Battery volts6Reference

Test results

Diesel Quad-Range 4WDMay 12 - 27, 1982Link: Nebraska Tractor Test 1436 fileReference

PTO performanceReference

Fuel use45.0 l/hourReference

Drawbar performanceReference

Fuel use45.4 l/hourReference

Max pull12050 kgReference

Speeds

18.4-38 tiresReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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