John Deere 850 Reviews: The Benefits Farmers Deserve to Know About

John Deere 850 stands out from the competition by examining its features, performance capabilities, customer reviews, and more! Read on to learn more about why so many farmers trust the reliable equipment of John Deere.

The John Deere 850 tractor also has many different specs to choose from. These specs ensure that farmers can choose the right power, speed, and versatility to meet their needs.

Key Notes:

  • The John Deere 850 tractor is ideal for farmers who need a reliable and powerful machine.
  • This model includes several specs, allowing farmers to pick the perfect power and speed for any job.
  • The tractor is made from high-quality materials, making it sturdy and able to endure years of various tasks.

The History of John Deere 850 Tractor

john deere 850 reviews

The John Deere Company manufactured the 850 models between 1978 and 1989 as the successor to the John Deere 750 tractor. It had more power than its predecessors, boasting a 25 horsepower diesel engine, four-wheel drive, and an automatic transmission.

The John Deere 850 tractor has gone through several updates over the years to make it even better for farmers.

This great tractor is built with a Yanmar 3t80-J engine, which is highly beneficial.

The compact utility tractor is equipped with reliable tires designed for farmers who work on rough terrain. The pneumatic tires are made from durable rubber that can handle anything from mud to sand and flat surfaces.

Key Specifications

TypeUtility tractor
Length117.3 in
Width53.1 in
Height50.8 in
Wheelbase63.8 in
Weight2,400 lbs
Fuel tank capacity32.2 liters
Cabin typeOpen operator station with two-post ROPS
BrakesDifferential mechanical expanding shoe

John Deere 850: Engine

The JD 850 tractor engine is a three-cylinder natural aspirated diesel engine with 3.15 inches of bore diameter and 3.35 inches of the piston stroke, producing 25 HP at 2600 rpm maximum output power while the compression ratio is 21.2:1.

The JD 850 tractor features a fuel tank capacity of 32.2 litres. The tank is enough to power the John Deere 850 for hours of continuous operation before needing a refuel. The John Deere 850 also has improved fuel efficiency compared to its predecessors, which can help farmers save money and work perfectly.

The John Deere 850 tractor is powered by a Yanmar 3t80-J engine, a liquid-cooled combustion engine that runs on diesel fuel.

John Deere 750 Engine Specs

Engine modelYanmar 3T80-J
Engine typeFour-stroke, liquid-cooled, inline
Number of cylinders3
Fuel typeDiesel
Displacement80.0 cu·in
Bore and stroke3.15 in x 3.35 in
Air cleanerpaper element compression
Coolant capacity5.7 L
Compression ratio21.2:1
Horsepower25.0 HP at 2,600 rpm

John Deere 850: Transmission

John Deere 850 offers a manual steering transmission with a power steering option choice. The standard transmission is designed to provide more control over the tractor’s speed, allowing operators to adjust their speed for different jobs.

The 850 compact utility tractor features 8 forward and 2 reverse gears, four-wheel drive, high and low-range options, and differential mechanical expanding shoe brakes with two post ROPS.

John Deere 850 Transmission Specs

Chassis4×2 two-wheel drive or a four-wheel drive
Steering typeManual or optional power steering
Transmission typeGear type with dry disc clutch
Gears8 forward; 2 reverse
Speed Forward18.8 kmh Reverse: 8.7 kmh

John Deere 850: Hydraulics

1985 john deere 850 specs

The John Deere 850 compact tractor has an open-center hydraulic system for easy and efficient farming and a hitch capacity of 1320 lb of lift capacity at a point 24″ behind the hitch balls.

The front-end loader John Deere 850 also offers a variety of hydraulic connections for additional implements and attachments.

John Deere 850 Hydraulics Specs

Hydraulic typeOpen center
Capacity18.0 L

John Deere 850: Attachments & PTO

The John Deere 850 attachments and PTO are versatile and can be used for multiple applications, such as the John Deere 80 Loader and mid-mount John Deere 1,820 mm mower deck.

John Deere 850 PTO Specs

Rear PTOtransmission; live two-stage clutch
Rear PTO speed540 rpm

John Deere 850 Attachments Specs

72″ Mower deck

Typemid-mount John Deere 172
Cutting width72 inches


Loader typeJohn Deere 80


Backhoe typeJohn Deere 8A


TypeFront-mount John Deere 423
Width72 inches

Tire Specs

Ag front tire5.00-15
Ag rear tires9.5-24
Lawn/turf front23/8.5-12
Lawn/turf rear13.6-16

Common Problems With John Deere 850 Tractor

John Deere 850 tractors are popular models with many features and benefits. However, like any tractor, they can experience common issues that users should be aware of.

The Yanmar 3t80-J engine is one of the more reliable engines on the market, but it can still experience problems such as overheating and general wear and tear. Also, the cooling system can often leak.

It is essential to keep the engine well-maintained to avoid any potential issues that could arise from a lack of maintenance.

The John Deere 850 tractor also features an open-center hydraulic system that provides efficient operation but can lead to problems such as leakage or blockages if not appropriately maintained.

It is necessary to check the hydraulic system regularly for signs of wear or contamination.


How much HorsePower is an 850 John Deere?

The John Deere 850 is a powerful tractor featuring a Yanmar 3t80-J engine that delivers up to 25 horsepower and 18.6 kilowatts of power.

how much can a john deere 850 lift

How much does a John Deere 850 Dozer weigh?

The John Deere 850 Dozer is a powerful and efficient piece of equipment, weighing in at around 2,400 lbs pounds. The 850 dozer has a full-power tilt blade, making it even more versatile in the field.

How much can a John Deere 855 lift?

The John Deere 855 is a powerful and efficient tractor, capable of lifting up to 1320 lbs. This makes it an ideal choice for farmers who need fast and reliable equipment to handle heavy loads.

How fast does a John Deere 850D go?

The John Deere 850D is a powerful and fast tractor, capable of reaching up to 17 mph in low-range mode.

What is the John Deere 850 tractor fuel capacity?

The John Deere 850 tractor has a fuel tank with a capacity of 32.2 liters, making it ideal for long hours in the field. The fuel tank is located on the side of the tractor and can easily be accessed for filling up.

Which engine is in a John Deere 850 tractor?

The John Deere 850 tractor is a powerful and efficient tractor featuring a Yanmar 3t80-J engine that delivers up to 25 horsepower and 18.6 kilowatts of power.

How many cylinders does John Deere 850 tractor have?

The John Deere 850 tractor features a Yanmar 3t80-J engine, a 3-cylinder diesel engine.


In conclusion, the John Deere 850 tractor is an effective and reliable piece of equipment for farmers who need to perform multiple tasks.

The cost-effective equipment is an investment you won’t regret any time soon, especially if you are a farm owner. The John Deere 850 tractor makes it easier to perform tasks such as lifting, grading, tilling, and more.

We hope this review helped give you the information you need about the John Deere 850 tractor.

Whether you are a farmer or just looking for dependable equipment, this is an ideal choice that won’t disappoint you. The John Deere 850 can be relied on with regular maintenance to get the job done.

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Ben Bareja

Ben Bareja, the owner-founder-webmaster of This website was conceptualized primarily to serve as an e-library for reference purposes on the principles and practices in crop science, including basic botany. Read more here

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