John Deere 9RX 640

The John Deere 9RX 640 is a tractor produced by John Deere. It is equipped with a 826.9 ci 13.6 L engine. The rated power output is 631.6 hp 471.0 kW. Transmission: e18. Drive type: articulated-crawler. Operating weight: 56320 lbs 25546 kg.

Overview

	2021 - 9R SeriesArticulated Crawler tractor
2021 -
9R Series
Articulated Crawler tractor

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

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

John Deere 9RX 640 Engine
John Deere 13.6L 6-cyl diesel
Fuel tank	400 gal 1514.0 L
Exhaust fluid (DEF)	31.7 gal 120.0 L
Engine details ...

John Deere 9RX 640 Transmission
18-speed full power shift
Transmission details ...

John Deere 9RX 640 Power
Engine (gross)	631.6 hp 471.0 kW
Engine (max)	681.2 hp 508.0 kW
PTO (claimed)	335 hp 249.8 kW

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

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

Tractor hitch
Rear Type	IVN/IV
Rear lift (at 24"/610mm)	15000 lbs 6804 kg
	20000 lbs 9072 kg

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000 (1.75)

Dimensions & Tracks
Wheelbase	162.5 inches 412 cm
Weight	56320 lbs 25546 kg
30-inch tracks
Full dimensions and tracks ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	250
	330 OptOptional
Batteries	3
Battery volts	12

References
9 Series Tractors published in 2022, by John Deere
Operator's Manual 9RX Tractors (OMTR118862) published in 2021

Engine

Engine Detail — 826.9 ci / 13.6 L Diesel

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

Transmission

Transmission — e18

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

Dimensions

John Deere 9RX 640 Tracks
Width	30 inches 76 cm
Width	36 inches 91 cm

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