John Deere 9RX 640
Power
631 hp
Production
2021+
Engine
Turbocharged aftercooled diesel, 6-cylinder 24-valve
Transmission
E18
From the same series:
Introduction
John Deere 9RX 640 Articulated Crawler Tractor
The John Deere 9RX 640 is a high-horsepower articulated crawler tractor introduced in 2021. Designed for large-scale agricultural operations, this machine focuses on high-traction performance and heavy-duty field work, manufactured at the John Deere facility in Waterloo, Iowa, USA.
Engine and Powertrain
The tractor is powered by the John Deere JD14, a 13.6-liter, 6-cylinder, 24-valve turbocharged and aftercooled diesel engine. It generates a rated power of 631.6 hp (471.0 kW) and a maximum gross power of 681.2 hp (508.0 kW). The engine features an electronic high-pressure common rail fuel system and delivers 2179 lb-ft of torque. Power is transferred through an e18 full power shift transmission offering 18 forward and 6 reverse gears.
Hydraulics and Hitch
The hydraulic system is a closed-center, pressure and flow-compensated type, operating at a pressure of 2900 psi (200 bar). It provides a standard pump flow of 55 gpm (208.2 lpm), with optional configurations reaching up to 110 gpm. The tractor is equipped with 4 to 8 valves for implement control. The rear Category IVN/IV hitch provides a lift capacity of 15,000 lbs at 24 inches behind the lift point.
Chassis and Traction
As an articulated crawler tractor, the 9RX 640 utilizes 30-inch tracks to maximize ground contact and minimize soil compaction. It features articulated power steering and electro-hydraulic differential locks on both the front and rear axles. The machine has a wheelbase of 162.5 inches and a base operating weight of 56,320 lbs, ensuring stability during heavy draft applications.
Conclusion
The John Deere 9RX 640 is engineered for demanding agricultural environments where high drawbar pull and traction are critical. Its combination of a large-displacement engine, high-capacity hydraulic system, and track-based propulsion makes it a specialized tool for broad-acre cultivation and heavy implement operation.
Production Information of John Deere, 9RX 640
- Original price was $896,199 in 2023
- Articulated Crawler tractor
- Built in Waterloo, Iowa, USA
| Manufacturer | John Deere |
|---|
Engine Specifications of John Deere, 9RX 640
- John Deere JD14
- Liquid-cooled inline
- During the first year of production the 9R 640 used a Cummins QSX15 engine.
- Turbocharged aftercooled diesel
- 6-cylinder 24-valve
| Torque RPM | 1550 |
|---|---|
| Torque | 2179 lb-ft [2954.7 Nm] |
| Oil change | 500 h |
| Emissions | Tier IV |
| Starter | Electric |
| Coolant capacity | 59.7 qts [56.5 L] |
| Maximum Power (gross) | 681.2 hp [508.0 kW] |
| Fuel system | Electronic high-pressure common rail |
| Rated Power (gross) | 631.6 hp [471.0 kW] |
| Bore/Stroke | 5.20x6.50 inches [132 x 165 mm] |
| Displacement | 826.9 ci [13.6 L] |
| Rated RPM | 2100 |
| Starter volts | 12 |
| Oil capacity | 67.6 qts [64.0 L] |
| Compression | 15.9:1 |
| Air cleaner | Dry |
Transmission Information of John Deere, 9RX 640
Transmission variants 1
| Transmission | E18 |
|---|---|
| Type | Full power shift |
| Gears | 18 forward and 6 reverse |
Mechanical Specs of John Deere, 9RX 640
- Hydraulic wet disc brakes
- Articulated power steering
- Cab standard with air-conditioning.
| Drive | Articulated-crawler |
|---|---|
| Final drives | Bull gear |
| Differential lock | Electro-hydraulic front and rear |
Power Information of John Deere, 9RX 640
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 1000 (1.75) |
Hydraulics Specifications of John Deere, 9RX 640
| Type | Closed center pressure/flow compensated |
|---|---|
| Type(optional) | 110 gpm [416.4 lpm] |
| Pump flow | 55 gpm [208.2 lpm] |
| Pressure | 2900 psi [200.0 bar] |
| SCV flow | 35 gpm [132.5 lpm] |
| Valves | 4 to 8 |
Optional, 3/4 inch coupler
Three-Point Hitch of John Deere, 9RX 640
| Rear Type | IVN/IV |
|---|---|
| Rear lift (at 24"/610mm) | 15000 lbs [6804 kg] |
| Rear lift (at 24"/610mm)(optional) | 20000 lbs [9072 kg] |
Electrical System of John Deere, 9RX 640
| Ground | Negative |
|---|---|
| Batteries | 3 |
| Batteries(optional) | 330 |
| Charging system | Alternator |
| Battery volts | 12 |
| Charging amps | 250 |
Where it sits
With 631 HP, the John Deere 9RX 640 sits just above 9620RX (620 HP) in John Deere's range. Its power puts it in the 99th percentile of 2020s models in our database (1464 machines).
Frequently asked questions
How much horsepower does the John Deere 9RX 640 have?
The John Deere 9RX 640 delivers 631 HP.
What years was the John Deere 9RX 640 produced?
The John Deere 9RX 640 was produced in 2021+.
What engine does the John Deere 9RX 640 have?
The John Deere 9RX 640 is powered by a Turbocharged aftercooled diesel, 6-cylinder 24-valve engine.
What transmission does the John Deere 9RX 640 use?
The John Deere 9RX 640 uses a E18 transmission.