Tractor · 1979Unverified
John Deere 8440
John Deere 8440 — Iron Horses Series · 180 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
180 hp
Max power
119.7 kW
Weight
12061 kg
Hover a source tag to verify
Overview
ManufacturerJohn DeereReference
Four-wheel Drive (4WD) tractorReference
Built in Waterloo, Iowa, USAReference
Original price was $64,000 in 1982Reference
Four-wheel driveReference
Differential lockhydraulic front and rearReference
Articulated power steeringReference
Hydraulic wet disc brakesReference
Cab standard.Reference
Engine
John Deere 7.6L 6-cyl dieselReference
Engine160.3 kWReference
Drawbar (tested)119.7 kWReference
John DeereReference
turbocharged dieselReference
6-cylinderReference
liquid-cooledReference
Displacement7.6 LReference
Bore/Stroke116 x 121 mmReference
Power160.3 kWReference
Compression15.5:1Reference
Rated RPM2100Reference
Idle RPM800-2300Reference
Operating RPM1500-2100Reference
Firing order1-5-3-6-2-4Reference
Starter volts12Reference
Oil capacity20.8 LReference
Coolant capacity37.9 LReference
Power at rated engine speed134.1 kWReference
Max power119.7 kWReference
Transmission
16-speed partial power shiftReference
TransmissionJohn Deere Quad-RangeReference
Typepartial power shiftReference
Gears16 forward and 6 reverseReference
Clutchhydraulic wet discReference
Oil capacity151.4 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)130.5 kWReference
PTO (tested)134.1 kWReference
Hydraulic system151.4 LReference
Typeclosed centerReference
Capacity151.4 LReference
Valves2Reference
Pump flow124.9 lpmReference
Rear TypeIIIReference
Rear lift3876 kgReference
Rear PTOindependentReference
Rear PTO Type1000Reference
Capacities
Fuel590.5 LReference
Dimensions
Wheelbase317 cmReference
Weight12061 kgReference
Front tire18.4-34Reference
Rear tire18.4-34Reference
Ag front18.4-34Reference
Ag rear18.4-34Reference
Length567 cmReference
Operating weight12061 kgReference
Ground clearance49 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
8440 Serial Number Location
Serial number plate on the rear of transmission case.Reference
8440 Serial Numbers
19791000Reference
19802266Reference
19813758Reference
19825235Reference
FAQ: How to read a serial number table.Reference
Electrical
GroundnegativeReference
Charging systemalternatorReference
Charging amps90Reference
Batteries2Reference
Battery CCA850Reference
Battery volts6Reference
John Deere 8440 Height
Hood221 cmReference
Cab321 cmReference
Exhaust341 cmReference
Test results
Diesel 16-speed 4WDSeptember 10, 1979 - September 15, 1949Link: Nebraska Tractor Test 1323 fileReference
PTO performanceReference
Fuel use42.8 l/hourReference
Drawbar performanceReference
Fuel use42.4 l/hourReference
Max pull11513 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.