UtilityPerformance profile
John Deere 840
The John Deere 840 is a utility tractor built for everyday farm tasks. It has a 2WD drive system and manual steering, making it easy to handle. The tractor uses a diesel engine with three cylinders, which is cooled by liquid. This engine gives the tractor 37.5 hp of power, which is good for many farm jobs. The John Deere 840 is a medium-sized tractor. It's 138 inches long, 65.4 inches wide, and 103.1 inches tall. It weighs 5,004 pounds, which is about average for tractors like this. The tractor has big farm tires, with different sizes for the front and back. It also has a hitch at the back for attaching tools. The tractor's engine size and power are average compared to other tractors. This makes the John Deere 840 a good all-around choice for many farms.
ManufacturerJohn DeerePower37.5 hpEngine3-cylTransCollar shift and two-speed power shift
Quick specs
- Category
- Utility
- Engine Power Output
- 38hp
- Operating Weight
- 5,004 lb
- Transmission
- Collar shift and two-speed power shift
At a glance
How the 840 compares
vs. Utility medianDistribution
Engine Power (hp)
Across all Utility tractors
37.5 hp · 31st
This model
9
Median 55 hp
177
This modelUtility tractorsMediann = 5,383
The 840 ranks at the 31st percentile for engine power among recorded utility tractors.
Overview
About the John Deere 840
The John Deere 840 is a utility tractor built for everyday farm tasks. It has a 2WD drive system and manual steering, making it easy to handle. The tractor uses a diesel engine with three cylinders, which is cooled by liquid. This engine gives the tractor 37.5 hp of power, which is good for many farm jobs. The John Deere 840 is a medium-sized tractor. It's 138 inches long, 65.4 inches wide, and 103.1 inches tall. It weighs 5,004 pounds, which is about average for tractors like this. The tractor has big farm tires, with different sizes for the front and back. It also has a hitch at the back for attaching tools. The tractor's engine size and power are average compared to other tractors. This makes the John Deere 840 a good all-around choice for many farms.
Full specifications
Every recorded spec
General
| Manufacturer | John Deere |
|---|---|
| Model | 840 |
| Category | Utility tractor |
| Type | 4x2 2WD |
| Operating weight | 5,004lb |
Engine
| Make | John Deere |
|---|---|
| Power | 37.5hp |
| Cylinders | 3 |
| Displacement | 179ci |
| Bore | 4.19in |
| Stroke | 4.33in |
Transmission
| Type | Collar shift and two-speed power shift |
|---|---|
| Forward gears | 8 |
| Reverse gears | 4 |
Chassis & drive
| Chassis | 4x2 2WD |
|---|---|
| Drive | 2WD |
| Steering | Manual |
Hydraulics
| Type | Closed center |
|---|
Dimensions
| Length | 138in |
|---|---|
| Width | 65.4in |
| Height | 103.1in |
| Operating weight | 5,004lb |
Capacities
| Cooling system | 2.78gal |
|---|
Head to head
840 vs. Utility median
How the John Deere 840 compares to other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 37.5 hp | 55 hp | -32% | 31st |
| Engine Displacement | 179 ci | 183 ci | -2% | 48th |
| Cylinders | 3 | 4 | -25% | 23rd |
| Forward Gears | 8 | 12 | -33% | 23rd |
| Operating Weight | 5,004 lb | 5,303 lb | -6% | 48th |
| Length | 138 in | 137 in | +1% | 52nd |
| Width | 65.4 in | 66 in | -1% | 49th |
| Height | 103 in | 94.1 in | +10% | 73rd |
Medians and percentiles are computed from the utility tractors in our database with a recorded value for each spec (sample sizes 3,933–5,720 models).
Compare to tractors with similar specs
Commonly compared John Deere tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| John Deere 1350 | 37.5 hp | 5,360 lb | — | Compare → |
| John Deere 2038R | 37.3 hp | 2,910 lb | 2017+ | Compare → |
| John Deere 3038R | 37.1 hp | 3,086 lb | — | Compare → |
| John Deere 4005 | 37.9 hp | 2,954 lb | — | Compare → |
| John Deere 1050 | 37 hp | 2,933 lb | 1980–1989 | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Allis Chalmers D15 | 37.44 hp | 4,036 lb | — | Compare → |
| Avery 20-35 | 37.33 hp | 7,550 lb | 1923+ | Compare → |
| Allis Chalmers D14 | 37 hp | 3,500 lb | 1957–1960 | Compare → |
| Antonio Carraro Tigre 4000F | 38 hp | 2,756 lb | — | Compare → |
| Antonio Carraro TTR 4400 | 38 hp | 2,811 lb | — | Compare → |
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Gallery
John Deere 840 photos
FAQ
Common questions
How powerful is the John Deere 840?
The John Deere 840 has an engine power output of 37.5 hp. It is powered by a 3-cylinder engine displacing 179 ci.
What is the working weight of the John Deere 840?
The operating weight of the John Deere 840 is approximately 5,004 lb.
What type of transmission does the John Deere 840 have?
The John Deere 840 uses a Collar shift and two-speed power shift transmission offering 8 forward gears.
What hydraulics does the John Deere 840 have?
The John Deere 840 uses a Closed center hydraulic system.
What three-point hitch category does the John Deere 840 use?
The John Deere 840 has a Category II/I three-point hitch.
What routine service does the John Deere 840 need?
Regular maintenance for the John Deere 840 includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.