Power: 185 hp Date of manufacture : 1977 - 1984
Production Manufacturer: John Deere Type: Row-Crop tractor John Deere 4640 Power Engine (gross): 185.1 hp 138.0 kW Engine (net): 174.3 hp 130.0 kW PTO (claimed): 155.6 hp 116.0 kW John Deere 4640 Engine Mechanical Chassis: 4x2 2WD   4x4 HFWD 4WD   4x4 MFWD 4WD Final drives: planetary Differential lock: hydro-mechanical Steering: power Brakes: hydraulic wet disc Cab: Cab standard. Transmissions: 16-speed partial power shift   8-speed full power shift Hydraulics Type: closed center Tractor hitch Rear Type: III Control: position and draft control Power Take-off (PTO) Rear PTO: independent Clutch: hydraulic wet disc Rear RPM: 1000 (1.75) Dimensions & Tires Wheelbase: 118.5 inches 300 cm Weight: 14350 lbs 6509 kg Front tire: 11.00-16 Rear tire: 20.8-38 Full dimensions and tires ... Electrical Ground: negative Charging system: alternator Charging amps: 88 Batteries: 2 Battery volts: 12 Battery AH: 88

Deere 4600	Power: 43 hp	Date of manufacture : 1999 - 2003

Deere 4610	Power: 42 hp	Date of manufacture : 2003 - 2004

Deere 4620	Power: 150 hp[P]	Date of manufacture : 1971 - 1972

Deere 4630	Power: 166 hp[P]	Date of manufacture : 1973 - 1977

Deere 4640	Power: 185 hp	Date of manufacture : 1977 - 1984

Deere 4640	Power: 172 hp[P]	Date of manufacture : 1978 - 1982

Deere 4650	Power: 187 hp	Date of manufacture : 1983 - 1988

Deere 4700	Power: 48 hp	Date of manufacture : 2000 - 2003

Deere 4710	Power: 46 hp	Date of manufacture : 2003 - 2004