Production

Who is the manufacturer and where is it built?

• Manufacturer: John Deere
• Type: Articulated Crawler tractor
• Built in: Waterloo, Iowa, USA
• Original price in 2023: $896,199

Variants

What are the variants of the 9RX 640?

• 9R 640: Wheeled 4WD
• 9RX 640: Articulated crawler

Engine

What are the engine specifications?

• Engine model: John Deere 13.6L 6-cyl diesel
• Fuel tank capacity: 400 gal (1514.0 L)
• Exhaust fluid (DEF) capacity: 31.7 gal (120.0 L)

Transmission

What type of transmission does it have?

• Transmission: 18-speed full power shift

Horsepower

What are the horsepower specifications?

• Engine (gross): 631.6 hp (471.0 kW)
• Engine (max): 681.2 hp (508.0 kW)
• PTO (claimed): 335 hp (249.8 kW)

Mechanical

What mechanical features does it have?

• Drive: Articulated-crawler
• Final drives: Bull gear
• Differential lock: Electro-hydraulic front and rear
• Steering: Articulated power steering
• Brakes: Hydraulic wet disc brakes
• Cab: Standard with air-conditioning

Hydraulics

What are the hydraulic specifications?

• Type: Closed center pressure/flow compensated
• Pressure: 2900 psi (200.0 bar)
• Valves: 4 to 8
• Pump flow: 55 gpm (208.2 lpm), Optional: 110 gpm (416.4 lpm)
• SCV flow: 35 gpm (132.5 lpm), Optional: 42 gpm (159.0 lpm)

Tractor Hitch

What are the hitch specifications?

• Rear Type: IVN/IV
• Rear lift (at 24\"/610mm): 15000 lbs (6804 kg), Optional: 20000 lbs (9072 kg)

Power Take-off (PTO)

What are the PTO specifications?

• Rear PTO: Independent
• Rear RPM: 1000 (1.75)

Dimensions & Tracks

What are the dimensions and track specifications?

• Wheelbase: 162.5 inches (412 cm)
• Weight: 56320 lbs (25546 kg)
• Track width: 30-inch

Electrical

What are the electrical specifications?

• Ground: Negative
• Charging system: Alternator
• Charging amps: 250, Optional: 330
• Batteries: 3
• Battery volts: 12