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John Deere 9RX 640

John Deere 9RX 640 tractor
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The John Deere 9RX 640 is an articulated crawler tractor in the 9R Series produced from 2021 onward. It features a powerful 13.6L 6-cylinder turbocharged aftercooled diesel engine delivering a gross rated power of 631.6 hp and a maximum of 681.2 hp. The tractor is equipped with an 18-speed full power shift transmission (e18) and articulated crawler drive with bull gear final drives. It has advanced hydraulics with closed center pressure/flow compensated system, multiple valve options, and high pump flow rates. The tractor hitch is a category IVN/IV with a rear lift capacity up to 20,000 lbs. Dimensions include a 162.5 inch wheelbase, 346.3 inch length, and a shipping weight of 56,320 lbs. Electrical system features a 250 amp alternator with optional 330 amp, three 12-volt batteries, and negative ground. The 9RX 640 is built in Waterloo, Iowa, USA, and had an original price of $896,199 in 2023.
John Deere9RX 640tractorarticulated crawler13.6L engine631 hp18-speed transmissionhydraulicsdimensionsfarm tractor
Power631 hp
Founded2021 -
Model9RX 640

Technical Specifications

Detailed specifications and technical data for John Deere 9RX 640

Power

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

Engine

Note:During the first year of production the 9R 640 used a Cummins QSX15 engine.
Type:turbocharged aftercooled diesel
Model:John Deere JD14
Torque:2179 lb-ft (2954.7 Nm)
Cooling:liquid-cooled inline
Starter:electric
Cylinders:6-cylinder 24-valve
Emissions:Tier IV
Rated RPM:2100
Torque RPM:1550
Air cleaner:dry
Bore/Stroke:5.20x6.50 inches (132 x 165 mm)
Compression:15.9:1
Fuel system:electronic high-pressure common rail
Displacement:826.9 ci (13.6 L)
Oil capacity:67.6 qts (64.0 L)
Starter volts:12
Coolant capacity:59.7 qts (56.5 L)
Oil change interval:500 h
Rated Power (gross):631.6 hp (471.0 kW)
Maximum Power (gross):681.2 hp (508.0 kW)

Tracks

Width:30 inches (76 cm), 36 inches (91 cm)

Variants

9R 640:wheeled 4WD
9RX 640:articulated crawler

Dimensions

Gauge:87/120 inches (220/304 cm)
Length:346.3 inches (879 cm)
Wheelbase:162.5 inches (412 cm)
Height (cab):146.3 inches (371 cm)
Shipping weight:56320 lbs (25546 kg)
Height (exhaust):145.1 inches (368 cm)

Electrical

Ground:negative
Batteries:3
Battery volts:12
Charging amps:250
Charging system:alternator
Optional charging amps:330

Hydraulics

Type:closed center pressure/flow compensated
Valves:4 to 8
Pressure:2900 psi (200.0 bar)
SCV flow:35 gpm (132.5 lpm)
Pump flow:55 gpm (208.2 lpm)
Optional SCV flow:42 gpm (159.0 lpm) (Optional, 3/4 inch coupler)
Optional pump flow:110 gpm (416.4 lpm)

Mechanical

Cab:standard with air-conditioning
Drive:articulated-crawler
Brakes:Hydraulic wet disc brakes
Final drives:bull gear
Differential lock:electro-hydraulic front and rear
Articulated power steering:yes

Production

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

Transmission

Type:full power shift
Gears:18 forward and 6 reverse
Transmission:e18

Tractor hitch

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

Power Take-off (PTO)

Rear PTO:independent
Rear PTO Type:1000 (1.75)

Related Models

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