The John Deere 9RX 640 is a high-horsepower, four-track tractor designed for demanding agricultural tasks.

Here are detailed specifications and an overview covering its engine, specs, dimensions, price, common problems, maintenance, and features:

John Deere 9RX 640 Engine and Performance

The tractor is powered by a John Deere JD14 13.6-liter (827 ci) inline six-cylinder, 24-valve, liquid-cooled diesel engine that is B20 biodiesel compatible.

It features a dual-stage turbocharging system with air-to-air aftercooling and cooled EGR (exhaust gas recirculation) to optimize power and emissions.

Emission compliant with Final Tier 4 (FT4) standards using a Diesel Oxidation Catalyst (DOC) and Selective Catalytic Reduction (SCR).

Rated power is 640 hp (471 kW) with a maximum boost engine power capability of 691 hp (508 kW).

Rated PTO power is 335 hp (249 kW).

Peak torque of 2954 Nm (2179 lb-ft) at 1550 rpm.

The engine speed is rated at 2100 rpm.

Fuel system uses electronic high-pressure common rail injection.

Oil change interval is every 500 hours.

Transmission and Hydraulics

Equipped with the John Deere e18™ 18-speed PowerShift transmission with Efficiency Manager, providing smooth power delivery and speeds up to 40 km/h (25 mph).

Hydraulics feature a closed-center, pressure-and-flow compensated system with a standard output of 208 L/min (55 gpm), and an optional high-flow pump delivering 416 L/min (110 gpm).

Rear hitch categorized as 4N/4 with lift capacities up to 20,000 lb (9072 kg).

Independent rear PTO with 1000 rpm, electrohydraulic actuation.

Dimensions and Weight

Wheelbase: 4125 mm (162.4 in)

Overall length (including hitch): 8545 mm (336.4 in)

Width with wide tracks option: up to 3048 mm (120 in)

Base machine weight: 25,846 kg (56,981 lb)

Maximum ballast weight: 30,391 kg (67,000 lb)

Fuel tank capacity: 1514 L (400 gallons)

Diesel Exhaust Fluid (DEF) tank: 120 L (31.7 gallons)

Features and Technology

Integrated precision ag technology with Generation 4 CommandCenter display.

Advanced AutoTrac™ guidance, integrated StarFire™ receiver, and JDLink™ telematics for remote diagnostics and field efficiency.

Operator comfort features include a spacious cab with 25/40-degree seat swivel, cab suspension, and multiple visibility packages.

Available ActiveCommand Steering (ACS) for improved handling precision.

Common Problems and Maintenance

As a modern high-horsepower tractor, the 9RX 640’s complexity requires regular maintenance such as oil and filter changes every 500 hours and hydraulic fluid changes every 1500 hours.

Precision ag electronics demand software updates and periodic calibration.

Track and undercarriage wear is typical due to heavy use on tough terrain and requires inspection and replacement as per usage intensity.

Issues related to DEF system sensors or injector fouling are potential but manageable with routine checks.

John Deere 9RX 640 Price

The John Deere 9RX 640 typically lists at around $600,000 to $700,000 USD depending on options, dealer, and region.

What are the key advantages of the John Deere 9RX 640 for high-capacity farming？

The key advantages of the John Deere 9RX 640 for high-capacity farming stem from its powerful engine, advanced technology, operator comfort, and versatile design:

High Engine Power and Efficiency:

It delivers a rated 640 horsepower with a maximum boost up to 691 hp, powered by a robust 13.6-liter JD14 inline six-cylinder engine.

This power enables it to handle large implements like wide disks and rippers efficiently, reducing the time needed for heavy-duty field tasks.

Precision Agriculture Technology:

Integrated precision ag features such as the G5Plus display and StarFire™ integrated receiver enhance operational efficiency and accuracy.

These technologies enable precise control and management of farming tasks, vital for large-scale operations.

Advanced Transmission:

The e18™ PowerShift transmission provides smooth and efficient power delivery, adaptable speed control, and exceptional handling under varied field conditions, improving operational productivity.

Four-Track Design with Wide Track Spacing:

The 120-inch (3048 mm) track spacing provides enhanced stability on uneven or soft terrain, allowing the tractor to support heavier ballast weights (up to 67,000 lbs), improve traction, and minimize soil compaction—crucial for large acreage farming.

Operator Comfort and Visibility:

Multiple cab packages offer superior comfort with features such as spacious design, smooth cab suspension, and adjustable steering ratios that reduce operator fatigue during long hours. Enhanced visibility helps maintain safety and precision during fieldwork.

Integrated Management and Connectivity:

With John Deere’s Operations Center and JDLink™ connectivity, farmers can remotely monitor and manage tractor performance and field operations, improving efficiency and enabling quick decision-making.

Durability and Maintenance:

Designed with a strengthened frame, undercarriage, and components for heavy-duty use, the 9RX 640 reduces downtime and repair needs.

Routine maintenance intervals and reliable systems ensure high reliability in demanding farming seasons.

Collectively, these features make the John Deere 9RX 640 exceptionally suited for high-capacity farming by maximizing power, precision, stability, comfort, and operational control to tackle large-scale agricultural workloads effectively.

Summary

The John Deere 9RX 640 is a robust, technologically advanced tractor ideal for large-scale farming operations requiring high power, precision, and track-based stability.

Its powerful engine, sophisticated transmission, and advanced hydraulics make it capable for a wide variety of implements and conditions.

Proper maintenance is critical to ensure longevity and performance, especially for the engine, hydraulic system, and tracks.

This tractor is a flagship in the John Deere 9RX 640 series, offering exceptional performance and operator comfort for intensive agricultural tasks.

If you need details on any specific aspect like detailed maintenance schedules or user feedback, I can provide that as well.