John Deere 643L Wheeled Feller Buncher

  • 25% larger cab
  • 21% larger front window
  • Increased head tilt angles


+ Increased horsepower and machine stability.

+ Redesigned engine and equipment frame structures.

+ Wide-open access to cooling package.

+ The cab is 25-percent roomier and 50-percent quieter

+ Quick Dump for the disk saw felling head


Engine Manufacturer John Deere
Engine ModelPowerTech PSS 6.8L
Emission RatingTier 4
Displacement, ltr (Inches³)6.8 (414)
Engine Output, kW (hp)157 (211)
Engine Torque, Nm (lbf / ft)923 (680)
Number Of Speeds - Forward2
Number Of Speeds - Reverse2
SteeringArticulated frame
Std tire size front28 L x 26
Service Brake TypeWet Disc - Inboard
Parking Brake TypeSpring on / hydraulic release


Overall Length, mm (ft/in)6293 (20 ft 8 in)
Height Over Cab, mm (ft/in)3216 (10 ft 7 in)
Width, mm (ft/in)2913 (9 ft 7 in)
Wheelbase, mm (ft/in)3023 (9 ft 11 in)
Ground Clearance, mm (inches)484 (19)
Steering Articulation Angle, ³ ³45


Fuel Tank, ltr (gallons (US))396 (104.6)
Hydraulic Tank, ltr (gallons (US))169.1 (44.7)
Alternator Capacity, Amp150


Travel Speed, kph (mph)17.5 (10.8)
Oscillation PointFront Axle
Oscillation Angle, ³ ³15
System Voltage, V24
PumpAxial piston


Operating Weight, kg (lbs)16383 (36120)