Brand siblingFour-Wheel DrivePerformance profile
John Deere 9RX 640
The John Deere 9RX 640 is a powerful tractor built for big jobs on the farm. It has a strong engine made by John Deere that can produce 631.6 horsepower. This engine has 6 cylinders and uses diesel fuel. It's cooled by liquid and has a turbocharger to make it even stronger. The tractor has 18 gears for going forward and 6 for going backward, giving the driver lots of control. This tractor is big and heavy, weighing 56,320 pounds. It's about 29 feet long and 12 feet tall. The 9RX 640 has a closed center hydraulic system, which helps it lift heavy things. It also has a cab for the driver to sit in, keeping them safe and comfortable. The hitch on the back can connect to many different farm tools. With its electric starter, this John Deere tractor is easy to get going, ready to work hard all day long on big farms.
ManufacturerJohn DeerePower631.6 hpEngine6-cylTransfull power shift
Quick specs
- Category
- Four-Wheel Drive
- Engine Power Output
- 632hp
- Operating Weight
- 56,320 lb
- Transmission
- full power shift
At a glance
How the 9RX 640 compares
vs. Four-Wheel Drive medianDistribution
Engine Power (hp)
Across all Four-Wheel Drive tractors
631.6 hp · 99th
This model
84
Median 375 hp
549
This modelFour-Wheel Drive tractorsMediann = 162
The 9RX 640 ranks at the 99th percentile for engine power among recorded four-wheel drive tractors.
Overview
About the John Deere 9RX 640
The John Deere 9RX 640 is a powerful tractor built for big jobs on the farm. It has a strong engine made by John Deere that can produce 631.6 horsepower. This engine has 6 cylinders and uses diesel fuel. It's cooled by liquid and has a turbocharger to make it even stronger. The tractor has 18 gears for going forward and 6 for going backward, giving the driver lots of control. This tractor is big and heavy, weighing 56,320 pounds. It's about 29 feet long and 12 feet tall. The 9RX 640 has a closed center hydraulic system, which helps it lift heavy things. It also has a cab for the driver to sit in, keeping them safe and comfortable. The hitch on the back can connect to many different farm tools. With its electric starter, this John Deere tractor is easy to get going, ready to work hard all day long on big farms.
Full specifications
Every recorded spec
General
| Manufacturer | John Deere |
|---|---|
| Model | 9RX 640 |
| Category | Four-Wheel Drive tractor |
| Operating weight | 56,320lb |
Engine
| Make | John Deere |
|---|---|
| Model | JD14 |
| Power | 631.6hp |
| Cylinders | 6 |
| Displacement | 826.9ci |
| Bore | 5.2in |
| Stroke | 6.5in |
Transmission
| Type | full power shift |
|---|---|
| Forward gears | 18 |
| Reverse gears | 6 |
Chassis & drive
| Cab | Cab |
|---|
Hydraulics
| Type | closed center pressure/flow compensated |
|---|
Dimensions
| Length | 346.3in |
|---|---|
| Width | 30in |
| Height | 146.3in |
| Operating weight | 56,320lb |
Capacities
| Cooling system | 14.93gal |
|---|
Head to head
9RX 640 vs. Four-Wheel Drive median
How the John Deere 9RX 640 compares to other Four-Wheel Drive tractors
| Spec | This model | Four-Wheel Drive median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 632 hp | 375 hp | +68% | 99th |
| Engine Displacement | 827 ci | 826 ci | 0% | 53rd |
| Cylinders | 6 | 6 | at median | 50th |
| Forward Gears | 18 | 16 | +13% | 86th |
| Operating Weight | 56,320 lb | 37,428 lb | +50% | 96th |
| Length | 346 in | 275 in | +26% | 98th |
| Width | 30 in | 116 in | -74% | 2nd |
| Height | 146 in | 143 in | +3% | 60th |
Medians and percentiles are computed from the four-wheel drive tractors in our database with a recorded value for each spec (sample sizes 71–162 models).
Compare to tractors with similar specs
Commonly compared John Deere tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| John Deere 9R 640 | 631.6 hp | 46,680 lb | — | Compare → |
| John Deere 9620R | 620 hp | 47,895 lb | 2015+ | Compare → |
| John Deere 9R 590 | 582 hp | 45,980 lb | — | Compare → |
| John Deere 9570R | 570 hp | 43,550 lb | — | Compare → |
| John Deere 9560R | 560 hp | 43,410 lb | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| CaseIH Steiger 620 | 620 hp | 48,147 lb | — | Compare → |
| CaseIH Steiger 620 Quadtrac | 620 hp | 60,145 lb | — | Compare → |
| Big Bud 650/50 | 650 hp | 60,000 lb | — | Compare → |
| Challenger MT862 | 610.2 hp | 42,000 lb | — | Compare → |
| Baldwin DP600 | 600 hp | — | — | Compare → |
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Gallery
John Deere 9RX 640 photos
FAQ
Common questions
What is the engine power output of the John Deere 9RX 640?
Rated engine output for the John Deere 9RX 640 is 631.6 hp, delivered by a 6-cylinder engine. The engine displaces 826.9 ci.
What is the operating weight of the John Deere 9RX 640?
In working trim, the John Deere 9RX 640 comes in at roughly 56,320 lb.
Which transmission does the John Deere 9RX 640 use?
The John Deere 9RX 640 is equipped with a full power shift transmission with 18 forward gears.
What hydraulics does the John Deere 9RX 640 have?
The John Deere 9RX 640 uses a closed center pressure/flow compensated hydraulic system.
What three-point hitch category does the John Deere 9RX 640 use?
The John Deere 9RX 640 has a Category 3 three-point hitch.
How do I maintain a John Deere 9RX 640?
Routine service for the John Deere 9RX 640 covers engine oil and filter changes, hydraulic and coolant level checks, air filter cleaning, and scheduled inspections. Refer to the manufacturer's maintenance schedule for exact intervals.