John Deere 4840 Price, Reviews, Specs, Engine Oil Capacity, Weight, Serial Numbers, Attachments, History, Features & Pictures
John Deere 4840 is a 2WD row-crop tractor belonging to the Iron Horses series ( 4640, 4840). It was produced by John Deere in Waterloo, Iowa, USA, between 1978 and 1982.
The John Deere 4840 Row-Crop Tractor comes equipped with a John Deere turbocharged inter-cooled diesel 6-cylinder liquid-cooled engine, delivering 180 hp (117.1 kW) of PTO claimed power at a rated RPM of 2200.
John Deere 4840 features an 8-speed full power shift transmission, a rear lift capacity of 8,295 lbs, and weighs between 14,900 to 18,000 pounds. Additionally, it has a transmission oil capacity of 75.7 L and is powered by a reliable John Deere 7.6L 6-cylinder diesel engine.
Now, let’s find out the John Deere 4840 Row-Crop Tractor Price, Parts Specs, Reviews, Serial Numbers and images.
John Deere 4840 Price
John Deere 4840 Original Price: $60,000 (1982)
Here are some factors that can affect the price of a John Deere 4840 tractor:
- Year: The older the tractor, the less it will be worth. However, some older tractors may be in high demand due to their rarity or collectability.
- Condition: A tractor in good condition with low hours on the engine will be worth more than one that is in poor condition or has high hours.
- Hours on the engine: The more hours on the engine, the less the tractor will be worth. However, a tractor with a well-maintained engine may still be worth a good price.
- Location: The price of a tractor can vary depending on where it is located. Tractors in high-demand areas will be worth more than those in low-demand areas.
John Deere 4840 Specs
Sure, here are the specifications of the John Deere 4840 tractor:
| Manufacturer | John Deere |
| Row-Crop tractor, Iron Horses Series | |
| Built-in Waterloo, Iowa, USA | |
| model year – 1978-1982 | |
John Deere 4840 Serial Number
| Year | Serial Number |
| 1978: | 1000 |
| 1979: | 4233 |
| 1980: | 7539 |
| 1981: | 11042 |
| 1982: | 14933 |
| The John Deere 4840 has a serial number plate on the rear, above the PTO shaft | |
John Deere 1840 Engine
| Engine type | John Deere turbocharged inter-cooled diesel 6-cylinder liquid-cooled |
| Displacement: | 466 ci 7.6 L |
| Bore/Stroke: | 4.5625×4.75 inches 116 x 121 mm |
| Air cleaner: | dual paper elements |
| Pre-heating: | ether injection |
| Compression: | 15.5:1 |
| Rated RPM: | 2200 |
| Idle RPM: | 800-2400 |
| Operating RPM: | 1500-2200 |
| Firing order: | 1-5-3-6-2-4 |
| Starter volts: | 12 |
| Coolant capacity: | 40 qts 37.9 L |
John Deere 1840 Power
| Drawbar (claimed): | 157 hp 117.1 kW |
| PTO (claimed): | 180 hp 134.2 kW |
| Drawbar (tested): | 151.21 hp 112.8 kW |
| PTO (tested): | 180.63 hp 134.7 kW |
Capacity
| Fuel: | 103 gal 389.9 L |
| Hydraulic system: | 16.5 gal 62.5 L |
Tractor Hitch
| Rear Type: | III,IIIN |
| Rear lift: | 8,295 lbs 3762 kg |
Mechanical
| Chassis: | 4×2 2WD |
| Differential lock: | pedal-actuated hydraulic |
| Steering: | power |
| Brakes: | differential hydraulic wet disc |
| Cab: | Sound-Gard cab. |
| Transmission: | 8-speed full power shift |
John Deere 1840 Transmission
| John Deere PowerShift | |
| Type: | full power shift |
| Gears: | 8 forward and 4 reverse |
| Oil capacity: | 80 qts 75.7 L |
Hydraulics
| Type: | closed center |
| Capacity: | 16.5 gal 62.5 L |
| Valves: | 2 or 3 |
| Pump flow: | 23 GPM 87.1 lpm |
PTO
| Rear PTO: | independent |
| Rear RPM: | 1000 (1.75) |
John Deere 1840 Dimensions
| Wheelbase: | 118.5 inches 300 cm |
| Length: | 177 inches 449 cm |
| Width: | 96 inches 243 cm |
| 108 inches 274 cm (long axle) | |
| 118 inches 299 cm (long axle) | |
| Height (cab): | 117 inches 297 cm |
| Clearance (front axle): | 26 inches 66 cm |
| Clearance (rear axle): | 28 inches 71 cm |
| Clearance (drawbar): | 14.9 inches 37 cm |
| Rear axle: | Rack-and-pinion: 3.937 by 96 inches 99 by 2438 mm |
| Rear axle: | Rack-and-pinion: 3.937 by 108 inches 99 by 2743 mm |
| Rear axle: | Rack-and-pinion: 3.937 by 118 inches 99 by 2997 mm |
| Front tread: | 58 to 100 inches 147 to 254 cm |
| Rear tread: | 60 to 131.5 inches 152 to 334 cm |
John Deere 1840 Weight
| Shipping: | 14,900 lbs 6758 kg |
| Operating: | 18,000 lbs 8164 kg |
| Ballasted: | 20,370 lbs 9239 kg |
John Deere 1840 Tires
| Ag front: | 11.00-16 |
| Ag rear: | 18.4-38 |
| Ag front: | 10.00-16 |
| 14L-16.1 | |
| 16.5L-16.1 | |
| 9.50-20 | |
| Ag rear: | 24.5-32 |
| 30.5-32 | |
| 20.8-38 | |
| 18.4-42 |
Electrical
| Ground: | negative |
| Charging system: | alternator |
| Batteries: | 2 |
| Battery volts: | 6 |
John Deere 4840 Tests
| Nebraska Tractor Test 1263 | |
| Diesel 8-speed 2WD November 2 – 12, 1977 | |
| Power at rated engine speed | 180.63 hp 134.7 kW |
| Fuel use | 11.5 gal/hour 43.5 l/hour |
| Power at rated PTO speed | 181.63 hp 135.4 kW |
| Fuel use | 11.5 gal/hour 43.5 l/hour |
| Drawbar performance | |
| Max power | 151.21 hp 112.8 kW |
| Fuel use | 11.3 gal/hour 42.8 l/hour |
| Gear 4 was used for the power test. | |
| Max pull | 17,307 lbs 7850 kg |
| Gear 2 was used for the pull test. | |
John Deere 4840 Problems
The John Deere 4840 may encounter common problems, such as engine noise, engine starting issues, transmission noise, and slow 3-point hitch rising. These problems can arise due to various reasons, including clogged fuel pipes, damaged bearings, or cold hydraulic fluid, among others.
1) Engine Not Starting or Hardly Starting
- The engine not starting due to a clogged fuel filter. Solution: Clean or replace the filter.
- Engine starting issues caused by a clogged fuel valve. Solution: Clean or replace the valve.
- Engine noise from clogged or dirty fuel injectors. Solution: Replace the injectors if needed.
- Unwanted engine noise due to a faulty cylinder compressor. Solution: Identify and replace the damaged component. Other possible problems include air in the fuel system or injection pump failure, which are less serious.
2) Less Engine Power
Less power in the engine can be due to low fuel or air levels, indicated during driving, causing user inconvenience.
- Reason 1: Clogged or damaged injector reduces engine power. Solution: Replace the injector.
- Reason 2: Clogged oil or air filter is common. Solution: Clean or replace the filter.
- Reason 3: Overloading the engine leads to reduced power. Solution: Reduce the load immediately.
Other causes may include incorrect idle settings, dirty hoses, or compression loss. Regular maintenance can prevent such issues.
3) Unusual Noise from Engine
Engine noise is a common issue with John Deere tractors, requiring immediate examination.
- Reason 1: Low fuel level in the tank can cause engine noise. Solution: Check and refill the fuel to the required level.
- Reason 2: Dirty or faulty fuel injection nozzles can lead to noise. Solution: Replace the nozzles for better performance.
- Reason 3: Worn-out crankshaft or main bearing can cause engine noise during heavy work. Solution: Replace the bearing and crankshaft.
- Reason 4: Damaged piston rings may also create engine noise. Solution: Replace the piston rings promptly for resolution.
4) 3-Point Hitch Raise Slowly
The 3-point hitch issue is common with John Deere 4840 tractors.
- Reason 1: Slow rising may be due to low hydraulic fluid temperature. Solution: Warm up the fluid with a screw-plug heater.
- Reason 2: A blocked hydraulic fuel filter can cause a problem. Solution: Regularly clean or replace the fuel filter.
- Reason 3: Defective hydraulic cylinder or wiring can also lead to slow rising. Solution: Inspect and replace damaged components as needed.
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John Deere 4840 Review Video
The John Deere 4840 tractor has received positive reviews from both owners and experts. Notable features include a powerful engine that delivers excellent performance on the field, operator comfort, reliability, resale value, and a large cooling system. For More Details Check Out The YouTube Video.
Final Words
That was all about the John Deere 4840 Tractor Price, Specs, Review, and Key Features, but if you have any queries regarding this post, then please comment below in the comment box, We will solve your problem as soon as possible, thanks for visiting our site and stay tuned to our site for more new stuff like this.
John Deere 4840 – FAQs
The John Deere 4840 is a high-horsepower tractor produced by John Deere, known for its power and reliability in demanding agricultural applications.
The John Deere 4840 is equipped with a 157-horsepower engine, providing substantial power for various field tasks.
Yes, the John Deere 4840 is equipped with a four-wheel drive (4WD) system, ensuring excellent traction and performance in diverse field conditions.
The key features of the John Deere 4840 may include a powerful engine, advanced transmission options, a comfortable operator cab, a hydraulic system with multiple remotes, and compatibility with a wide range of implements and attachments.
The John Deere 4840 runs on diesel fuel, which is commonly used in tractors of this size and class.
Although the John Deere 4840 is primarily designed as an agricultural tractor, it can be equipped with a front loader attachment for handling materials and performing light-loading tasks.
Yes, the John Deere 4840 is suitable for large-scale farming operations. Its high horsepower, advanced features, and compatibility with various implements make it well-suited for heavy-duty fieldwork.
The weight of the John Deere 4840 can vary depending on the specific model and optional equipment. On average, this category typically ranges between 14900 to 18000 pounds.
Parts for the John Deere 4840 can be obtained through authorized John Deere dealerships. They have access to a wide range of genuine parts and can assist with finding the right components for your tractor.
Yes, the John Deere 4840 can be used for planting and harvesting operations. Its high horsepower, precision controls, and compatibility with planting and harvesting equipment make it suitable for these tasks.
The John Deere 4840 is designed with user-friendly controls, advanced technology, and a comfortable operator environment, making it relatively easy to operate. However, proper training and familiarity with the tractor are recommended for optimal performance.
The resale value of the John Deere 4840 can vary depending on factors such as its age, condition, and market demand for used tractors. It’s advisable to research local market prices and consult with equipment dealers or appraisers for an accurate estimation of the resale value.
Financing options for the John Deere 4840 may be available through authorized John Deere dealerships. Contact your nearest dealer to inquire about financing and payment plans available to them.
While the John Deere 4840 is primarily designed for agricultural applications, its versatility allows for limited use in other industries such as landscaping or light construction work.
My name is Ranjitsinh Mantri founder of this blog and I am a full-time blogger writing is my passion. Just before 4 years ago We started this website in 2019 with my team to share our knowledge about tractor models and its prices guide on the internet.