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John Deere 9RX 640

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Features

Take on Your Toughest Work with Confidence

Green tractor with oversized dual tires pulling a cultivator across a harvested field with dust trailing behind the equipment under a cloudy blue sky

When the job demands maximum pull and performance, 9 Series tractors deliver the power, durability, and traction to keep you moving. Built for heavy draft and high-demand applications, they help you maintain field speed, cover more acres, and work through tough conditions—so you can stay on schedule when timing matters most.

Keep Big Tools Moving Efficiently

Green tractor with large rear tires towing a wide cultivator across a dry, harvested field with dust rising heavily behind the equipment over flat farmland under a hazy sky

Wide implements and high-speed operations push equipment to its limits. John Deere's 9 Series tractors are designed to maintain consistent performance under load, with the power, hydraulics, and traction needed to keep large tools operating at peak efficiency - helping you reduce bottlenecks, improve productivity, and get more done in every pass.

Turn Power into Predictable Performance

Person working at a desk using a keyboard and mouse while viewing a large monitor displaying a detailed map interface; a laptop and desk lamp sit nearby in a bright workspace

Productivity isn’t just about horsepower - it’s about how consistently you can apply it. 9 Series tractors combine integrated technology, precision capabilities, and reliable performance to help you work with confidence. From the cab to the cloud, you can monitor performance, document work, and make better decisions across your operation.

Specifications

Rear Axle

Rear Differential LockFull-locking electrohydraulic
Final DriveBull gear and double idler with floating pinion

Hydraulics

Hydraulic System TypeClosed-center, pressure-and-flow compensated
Pump Rated Output208 L/min / 55 gpm (Standard); 416 L/min / 110 gpm (Optional)
Number of Rear Selective Control Valves (SCVs)Four to six factory or field installed; Base: four 1.3-cm (1/2-in.) couplers; Optional: five to six 1.3-cm (1/2-in.) couplers factory installed; Optional: three 1.9-cm (3/4-in.) couplers plus three 1.3-cm (1/2-in.) couplers factory installed
Available Flow at a Single Rear SCV1.3-cm (1/2-in.) couplers: 132 L/min (35 gpm); 1.9-cm (3/4-in.) couplers: 170 L/min (45 gpm)
SCV ControlElectronic

Dimensions & Weights

Wheelbase162.5 in.
Wheelbase4128 mm
Base Machine Weight56981 lb.
Base Machine Weight25846 kg
Overall Length326.6 in.
Overall Length8295 mm
Drawbar Ground Clearance12.2 in.
Drawbar Ground Clearance311 mm
Maximum Ballast Level67000 lb.
Maximum Ballast Level30391 kg

Engine

Engine MakeJohn Deere
Engine ModelJD14
Engine FamilyVJDXL13.5334
Emissions CertificationsFinal Tier 4 (FT4)
Displacement827 cu in.
Displacement13.6 L
AspirationDual series turbocharger with fixed geometry first stage and wastegated second stage; air-to-air aftercooling and cooled exhaust gas recirculation (EGR)
Number of Cylinders6
Cylinder LinersWet-sleeve
Aftertreatment TypeDiesel oxidation catalyst (DOC)/selective catalytic reduction (SCR)
Rated Engine Speed2100 rpm
Rated Engine Power631 hp
Rated Engine Power471 kW
Rated Engine Power640 PS
Engine Torque at Rated Speed2179 lb-ft
Engine Torque at Rated Speed2954 Nm
Maximum Engine Power682 hp
Maximum Engine Power508 kW
Maximum Engine Power691 PS
Maximum Engine TorqueAt 1550 rpm: 2179 lb-ft / 2954 Nm
Alternative Fuel TypeB30 Diesel Compatible
Power Bulge8 %
Fuel TypeDiesel
Alternative Fuel TypeB20 diesel compatible
Torque Rise38 %

Electrical System

Battery Voltage12 V
Battery Cold Cranking Amps2850 CCA
Alternator CapacityStandard: 250 amp; Optional: 330 amp
Working LightsStandard: 20 halogen; Optional: 20 or 24 light-emitting diode (LED)
Driving LightsHalogen, 65 W; Optional: LED

Rear Hitch

Rear Hitch Category (SAE Designation)Category 4N/4: 6804 kg (15,000 lb); Category 4N/4: 9072 kg (20,000 lb)
Maximum Lift Capacity Directly at Coupling Points20.000
Sensing TypeElectrohydraulic with draft sensing

Operator Station

Seat SuspensionAir suspension
Degree of Seat Swivel, Left Hand25 degree (angle)
Degree of Seat Swivel, Right Hand40 degree (angle)
Cab SuspensionStandard
Instructional SeatStandard
Primary DisplayG5 Plus™ CommandCenter™: 32.5 cm (12.8 in.)
RadioAM/FM stereo with weatherband, remote controls, auxiliary input jack, four speakers and external antenna; Optional: Touchscreen radio
Inner Cab Volume115 cu ft
Inner Cab Volume3.27 m³
Cab Glass Area71.47 sq ft
Cab Glass Area6.64 m²

Rear Power Take-Off (PTO)

PTO CategoryIndependent, 44 mm (1.75 in.) 20-spline, 1000 rpm
Rated PTO Power335 hp
Rated PTO Power249 kW
Rated PTO Power340 PS
Engagement MethodElectrohydraulic

Capacities

Fuel Tank Capacity400 gal.
Fuel Tank Capacity1514 L
Diesel Exhaust Fluid (DEF) Tank Capacity31.7 gal.
Diesel Exhaust Fluid (DEF) Tank Capacity120 L
Cooling System Capacity14.9 gal.
Cooling System Capacity56.5 L
Transmission - Hydraulic SystemWith 3-point hitch and PTO: 60 Without 3-point hitch and PTO: 58 gal.
Transmission - Hydraulic SystemWith 3-point hitch and PTO: 242 Without 3-point hitch and PTO: 235 L
Crankcase Oil Volume16.9 gal.
Crankcase Oil Volume64 L

Transmission

Transmission TypeJohn Deere e18™ 18-speed PowerShift™ with Efficiency Manager
Maximum Speed Forward40 km/h / 25 mph

Steering & Brakes

Steering TypeHydraulic power steering; Optional: ActiveCommand Steering (ACS™)

Technology Integration

GuidanceIntegrated AutoTrac™; Autonomy Ready (available in select regions)
ConnectivityAvailable with JDLink™ hardware, activations, and Ethernet harnesses (availability dependent upon destination)
Remote DiagnosticsAvailable with activated JDLink hardware and activations

Drawbar

Drawbar CategoryCategory 5
Maximum Vertical Load12,000 lb / 5440 kg

Additional Information

Country of ManufactureUSA
Date Collected4/3/2025 12:00:00 AM

Machine Configuration

Wheel or Track Configuration4-Track
Drive Type4WD

Tracks

Track Tread SpacingWide undercarriage: 2218 or 3048 mm (87 or 120 in.)
Track Width762 or 914 mm (30 or 36 in.)
Number Of Mid RollersTwo

Front Axle

Front Axle Differential LockFull-locking electrohydraulic