John Deere 8640 Production ended · 4WD
225 hp
Lineage ← Predecessor 8630 1975–1978 · 275 hp This model 8640 1979–1982 · 225 hp
Successor → 8650 1982–1988 · 290 hp Power specifications Engine 275 hp unspecified PTO 225 hp claimed PTO, tested 228.8 hp Drawbar 203.3 hp tested Listed power 275 hp engine basis
Engines fitted to the John Deere 8640 John Deere 10.1L 6-cyl dieselDiesel · 6 cyl 619 ci
Engine details John Deere 10.1L 6-cyl diesel Bore × stroke 5.12 in × 5 in Rated speed 2,100 rpm Rated power 275 hp Compression 15.2:1 Aspiration turbocharged diesel Cooling liquid-cooled Transmissions for the John Deere 8640 John Deere Quad-Rangepartial power shift 16F / 6R
Transmission notes John Deere Quad-Range: 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.
Weight specifications Weight 28,270 lb operating
Dimensions specifications Wheelbase 125 in Length 223.5 in Height 126.6 in unspecified Ground clearance 18.4 in Front tread, narrowest 63 in Front tread, widest 130 in Rear tread, narrowest 63 in Rear tread, widest 130 in
Capacities specifications Fuel tank 214 gal Hydraulic system 41 gal
Hydraulics specifications System closed center Pump flow 33 gpm Remote valves 2
Hitch specifications Rear hitch category III/IIIN Rear lift capacity 8,545 lb
PTO specifications Rear PTO independent Rear PTO speeds 1000 Engine rpm at PTO speed 1000@2100
Chassis specifications Drive 4WD Steering Articulated power steering Brakes Hydraulic wet disc brakes Differential lock hydraulic front and rear Cab Cab standard
Tires specifications Front 18.4-34 Rear 18.4-34
Electrical specifications System voltage 6 V Batteries 2 Cold cranking 975 CCA Charging alternator Charging output 90 A Ground negative
Production specifications Price new $80,000 (1982) Factories Waterloo, Iowa, USA Built by John Deere