John Deere 4320 (1971-1972)

John Deere 4320 (1971-1972)The John Deere 4320 is a 2WD or 4WD row-crop tractor manufactured by the John Deere in Waterloo, Iowa, USA from 1971 to 1972. The John Deere 4320 is equipped with a 6.6 L six-cylinder diesel engine and partially synchronized transmission with dry disc clutch and 8 forward and 2 reverse gears.

The JD 4320 row-crop tractor used the John Deere engine. It is a 6.6 L, 6,620 cm2, (404.0 cu·in) six-cylinder turbocharged diesel engine with 108.0 mm (4.25 in) of the cylinder bore and 121.0 mm (4.76 in) of the piston stroke. The compression ratio rating is 15.7:1. This engine produced 116.7 PS (85.8 kW; 115.0 HP) of PTO output power.

The John Deere 4320 is equipped with power steering, differential hydraulic wet disc brakes, open operator station (two-post ROPS, canopy or Cab was available as an option) and 166.5 liters (44 US gal.; 36.6 Imp. gal) fuel tank.

Following attachments are available for the JD 4320 row-crop tractor:

  • John Deere 148 loader
  • John Deere 158 loader

John Deere 4320 Specifications

General Specifications
ModelJohn Deere 4320
Length4,040 mm (159.1 in)
Width 2,270 mm (89.4 in)
Long axle: 2,430 mm (95.9 in)
Extra long axle: 2,630 mm (103.9 in)
Dual axle: 2,870 mm (113.0 in)
Height2,710 mm (106.7 in)
Wheel base2,700 mm (106.3 in)
Weight4,842 kg (10,675 lbs)
Fuel tank capacity166.5 liters (44 US gal.; 36.6 Imp. gal)
Cabin typeOpen operator station. Two-post ROPS and canopy (option). Cab (option)
Engine modelJohn Deere
Engine typeFour-stroke, liquid-cooled, inline
Fuel typeDiesel
Displacement6.6 L, 6,620 cm2, (404.0 cu·in)
Bore and stroke108.0 mm X 121.0 mm (4.25 in X 4.76 in)
Compression ratio15.7:1
Horsepower116.7 PS (85.8 kW; 115.0 HP)
Oil capacity:15.0 L (15.9 US. qt, 13.2 Imp. qt.)
Coolant capacity:16.5 L (17.4 US. qt, 14.5 Imp. qt.)
Transmission and chassis
Chassis4×2 2WD or 4×4 MFWD 4WD
Steering typePower
BrakesDifferential hydraulic wet disc
Transmission modelJohn Deere Syncro-Range
Transmission typePartially synchronized with dry disc clutch
Gears8 forward and 2 reverse
Speed Forward: 30.4 kmh (18.9 mph) Reverse: 10.6 (6.6 mph)
Transmission oil capacity53.0 L (14 US. gal, 11.7 Imp. gal.)
Front tiresAg: 10.00-16
Rear tiresAg: 18.4-34
Three-Point Hitch
Control type
Lift capacity (at ends)1,700 kg (3,749 lbs)
PTO (Power take-off shaft)
Rear PTO typeIndependent
Rear PTO spped540/1000, 1000 rpm
Hydraulic system
Hydraulic typeClosed center
Hydraulic capacity53.0 L (56 US. qt, 46.63 Imp. qt.)
Valves1 to 3
Pump flow22.0 gpm (83.3 lpm)
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