Embed

Paste on your site — shows live UK/US specs and links back here. Free to use.

<iframe src="https://farmfleetspecs.com/embed/john-deere-8640" width="100%" height="430" loading="lazy" style="border:1px solid #e6e8e4;border-radius:14px;max-width:560px" title="John Deere 8640 specs — FarmFleetSpecs"></iframe>

Tractor · 1979Unverified

John Deere 8640

Name: John Deere 8640
Brand: John Deere

John Deere 8640 — Iron Horses Series · 229 hp. Reference specifications; pending source verification.

The John Deere 8640 is a tractor model capable of producing 229 hp, placing it at the more powerful end of its class. Manufactured between 1979 and 1982, this model is equipped with a 6-cylinder turbocharged diesel liquid-cooled engine, paired with four-wheel drive and a powershift transmission. The tractor's operating weight is 12823 kg. It is designed for use on land areas 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

229 hp

Max power

151.6 kW

Weight

12823 kg

Catalogue coverage

Variants represented

Richest spec table

86 rows

Recorded power

229 hp

Recorded weight

12823 kg

Transmissions

16-speed partial power shift

Production years

1979-1982

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 $80,000 in 1982Reference

Four-wheel driveReference

Differential lockhydraulic front and rearReference

Articulated power steeringReference

Hydraulic wet disc brakesReference

Cab standardReference

Engine

John Deere 10.1L 6-cyl dieselReference

Engine205.1 kWReference

Drawbar (tested)151.6 kWReference

John DeereReference

turbocharged dieselReference

6-cylinderReference

liquid-cooledReference

Displacement10.1 LReference

Bore/Stroke130 x 127 mmReference

Power205.1 kWReference

Air cleanerdual paper elementsReference

Compression15.2:1Reference

Rated RPM2100Reference

Idle RPM800-2300Reference

Operating RPM1500-2100Reference

Starter volts12Reference

Oil capacity24.6 LReference

Coolant capacity45.4 LReference

Power at rated engine speed170.6 kWReference

Max power151.6 kWReference

Transmission

16-speed partial power shiftReference

TransmissionJohn Deere Quad-RangeReference

Typepartial power shiftReference

Gears16 forward and 6 reverseReference

Clutchhydraulic wet discReference

Oil capacity155.2 LReference

Four gears (1-4) in four ranges (A-D). Tractor must be stopped to select range. Power shift between gears 1-2 and 3-4 within range.Reference

PTO & Hydraulics

PTO (claimed)167.8 kWReference

PTO (tested)170.6 kWReference

Hydraulic system155.2 LReference

Typeclosed centerReference

Capacity155.2 LReference

Valves2Reference

Pump flow124.9 lpmReference

Rear TypeIII/IIINReference

Rear lift3876 kgReference

Rear PTOindependentReference

Rear PTO Type1000Reference

Engine RPM1000@2100Reference

Capacities

Fuel810.0 LReference

Dimensions

Wheelbase317 cmReference

Weight12823 kgReference

Front tire18.4-34Reference

Rear tire18.4-34Reference

Ag front18.4-34Reference

Ag rear18.4-34Reference

Length567 cmReference

Operating weight12823 kgReference

Ground clearance46 cmReference

Front axle99 by 2433 mmReference

Front axle99 by 3007 mmReference

Rack-and-pinion rear axle99 by 2433 mmReference

Rack-and-pinion rear axle99 by 3007 mmReference

Front tread160 to 330 cmReference

Rear tread160 to 330 cmReference

8640 Serial Number Location

On transmission case on the rear of the 8640.Reference

8640 Serial Numbers

19791500Reference

19803198Reference

19815704Reference

19827960Reference

FAQ: How to read a serial number table.Reference

Electrical

GroundnegativeReference

Charging systemalternatorReference

Charging amps90Reference

Batteries2Reference

Battery CCA975Reference

Battery volts6Reference

John Deere 8640 Height

Hood221 cmReference

Cab321 cmReference

Exhaust341 cmReference

Test results

Diesel 16-speed 4WDSeptember 11 - 18, 1979Link: Nebraska Tractor Test 1324 fileReference

PTO performanceReference

Fuel use55.6 l/hourReference

Drawbar performanceReference

Fuel use54.9 l/hourReference

Max pull12601 kgReference

Speeds

With 18.4-38 tires.Reference

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

Partner tool · Free

Working out if you can afford this tractor?

YourIncomeCalculator.com — free, HMRC-aligned take-home pay, self-employment & VAT calculators. No sign-up.

Calculate your take-home pay

Recommended kit

Handy kit for owners

Popular tractor and farm accessories owners pick up for machines like this.

Disclosure: some links on this page are affiliate links. If you buy through them we may earn a small commission — at no extra cost to you. Learn more.