Tractor · 1979Unverified
John Deere 8640
John Deere 8640 — Iron Horses Series · 229 hp. Reference specifications; pending source verification.
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
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.