John Deere 4020 Specs and Review

If you are looking for an agricultural tractor, one of the most popular models is the John Deere 4020. In this John Deere 4020 review, I’ll list its features and specs so you can decide if it is the right agricultural tractor for you.

John Deere 4020 is one of the most popular agricultural tractors that gives John Deere a good image. From 1963 to 1972, there were over 184,000 JD 4020 tractors produced. It is one of the best tractors of its time, if not the best. There are still JD 4020 models at work today in many parts of the world.

Read more about John Deere 4020, including its specs and features.

About John Deere 4020

John Deere 4020

A Well-known Agricultural Tractor

John Deere 4020 is a well-known agricultural tractor that has given John Deere a good name. From 1963 to 1972, there were more than 184,000 JD 4020 models manufactured.

It is one of the best tractors of its time. There are still JD 4020 tractors at work today, which you can find in many parts of the world.

Replaced the John Deere 4010 Model

This agricultural tractor model replaced the John Deere 4010 model launched in 1960 with John Deere’s New Generation Series. The John Deere 4020 tractor looks almost similar to the JD 4010.

It is just that the JD 4020 has improved features, such as the inclusion of a differential lock, heavier rear axles, and increased horsepower (hp).

Engine Options

Unlike the JD 4010, the 4020 model was launched to the public with three engine options: LPG, petrol, and diesel. The John Deere 4020 diesel engine features six cylinders tested at 91 power takeoff (PTO) horsepower and 84 drawbars.

The Syncro Range transmission of John Deere features eight forward speeds as well as two reverse speeds. This is a standard feature for a JD 4020 tractor, whereas a power shift transmission is optional.

Its other optional features include an enclosed cab with a heat and air conditioning system and dual rear wheels.

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John Deere 4020 Specs

Now, let’s take a look at the JD 4020 tractor specs based on the following categories:

  1. Gasoline Engine
  2. Diesel Engine
  3. Standard Transmission
  4. Optional Transmission
  5. Power Take Off
  6. Dimensions and Weight
  7. Wheels and Tires
  8. Hydraulic System

Here, we will talk about the JD 4020 4 x 2 New Generation series row crop tractor that was produced between 1963 and 1972:

1. Gasoline Engine

This John Deere 4020 engine is a 4-cycle, 6-cylinder, 12 valve gasoline engine. It has a displacement of 362 cubic inches or 5.90 liters. The engine bore, and engine stroke measures the same at 4.25 inches or 108.0 mm.

The John Deere 4020 HP in terms of rated engine power is 101.0, or 74.8 kilowatts, while its rated engine speed is 2,200 revolutions per minute (rpm). In terms of idle speed, it ranges between 650 and 2,500 rpm. Its compression ratio is 7.5:1, and its firing order is 1-5-3-6-2-4.

As for its fuel tank capacity, it is 34.0 gallons or 129.0 liters. Its oil capacity is 8.0 quarts or 7.6 liters. In terms of coolant capacity, it measures 24.4 quarts or 23.0 liters. Its electrical system rating is 12 volts, and has a generator charging system.

2. Diesel Engine

The diesel-type JD 4020 tractor has a 4-cycle, 6-cylinder diesel engine. Its displacement measures 404 cubic inches or 6.60 liters, its engine bore measures 4.25 inches or 108.0 mm, and its engine stroke measures 4.78 inches or 121.0 mm. This engine has a natural aspiration.

Its rated engine power is 101.0 horsepower or 74.8 kilowatts, while its rated engine speed is 2,200 rpm. As for its idle speed, it ranges between 600 and 2,500 rpm. Its firing order is 1-5-3-6-2-4, its compression ratio is 16.5:1, and its air cleaner is an oil bath.

Regarding intake valve clearance, the measurement is 0.018 inches or 0.457 mm. Its fuel tank capacity is 34.0 gallons or 129.0 liters, its electrical system rating is 24 volts, and it has an alternator charging system.

3. Standard Transmission

The JD 4020 tractor features the Syncro Range transmission. It has an 8F/2R partially synchronized gearbox type, eight forward gears, and two reverse gears. Its oil capacity is 40.1 quarts or 37.9 liters.

In terms of speed, its maximum forward speed is 19.2 mph or 30.9 kph. For the maximum reverse speed, it is 5.2 mph or 8.4 kph.

4. Optional Transmission

The John Deere 4020 has several optional transmission features. These include a PowerShift transmission type, an 8F/4R full power shift gearbox type, eight forward gears, four reverse gears, and an oil capacity of 56.3 quarts or 53.1 liters.

Regarding speed, it has a maximum forward speed of 20.5 mph or 33.0 kph. At the same time, its maximum reverse speed is 4.9 mph or 7.9 kph.

5. Power Take Off (PTO)

Now, let’s talk about the Power Take Off (PTO) features of the John Deere 4020. Its PTO horsepower measures 95.0 horsepower or 71.5 kilowatts. Its independent rear PTO operational type is standard, while its independent front PTO operational type comes optional.

This tractor’s rear PTO speed is 540 rpm, while its front PTO speed is 1,000 rpm. Its rear PTO/engine speed is 540 rpm/1900 rpm. At the same time, its front PTO/engine speed is 1000 rpm/1900 rpm.

6. Dimensions and Weight

The standard wheelbase measurement for the JD 4020 tractor is 100.3 inches or 2,540 mm. The measurement for the row crop wheelbase is 97.5 inches or 2,470 mm. Its overall width is 89.6 inches or 2,270 mm, while its length is 151 inches or 3,830.

Now, let’s talk about everything there is to know regarding the John Deere 4020 weight. Shipping weight varies depending on the type of engine. The diesel engine’s shipping weight is 8,440 lbs or 3,825 kg. In contrast, it is 8,225 lbs or 3,730 kg for the gasoline engine.

In terms of operating weight, it is 8,945 lbs or 4,060 kg for the diesel engine with Syncro Range transmission. The operating weight measures 9,560 lbs or 4,335 kg for the diesel engine with PowerShift transmission.

The gasoline engine with Syncro Range transmission has an operating weight of 8,645 lbs or 3,920 kg. At the same time, the gasoline engine with PowerShift transmission has an operating weight of 9,240 lbs or 4,190 kg.

7. Wheels and Tires

The JD 4020 4 x 2 New Generation series row crop tractor is a 2-wheel drive 4 x 2 equipment. It has a front steering configuration, a power steering system, and a hydraulic wet disc service brake.

For its front tire, the standard size measures 7.5 x 18, while the standard rear tire size measures 18.4 x 34. The row crop front tire size is 6.0 x 16, while the row crop rear tire size is 15.5 x 38.

For the front track width, measurement ranges between 48.5 inches and 82.3 inches, equivalent to 1,230 mm and 2,080 mm. The measurement for the rear track width ranges between 60 inches and 91 inches, or 1,520 mm and 2,310 mm.

8. Hydraulic System

The JD 4020 has a closed center hydraulic system type. Its implement pump flow is 18.30 gpm or 68.2 liters per minute (lpm), and its selective control valve flow is 6.0 gpm or 22.5 lpm.

In terms of hydraulic pressure, the measurement is 155 bar or 2,250 pounds per square inch (psi). The hydraulic capacity of the JD 4020 with Syncro Range transmission is 10.0 gallons or 45.5 liters.

Whereas the hydraulic capacity of the JD 4020 with PowerShift transmission is 12.0 gallons or 45.5 liters.

This tractor has ⅓ standard remote valves and two three-point hitch categories. As for its rear lift capacity, it measures 3,790 lbs or 1,720 kg.

What’s a John Deere 4020 Worth?

Not everyone will believe this, but a 1970 John Deere 4020 can sell for about $26,000.

In 2016, a 1964 JD 4020 tractor had an average auction price of $6,213. By 2017, the auction price had increased to $9,345. There was a time when its auction sale price in 2007 was $7,240:

In the American Implement YouTube video, sales guru Keith Wood discusses how John Deere has revolutionized farming technology.

Again, what’s a John Deere 4020 worth? John Deere 4020’s auction prices were $9,345 and $6,213 in 2016 and 2017, respectively. In comparison, a 1964 model’s price in 2007 was $7,240.

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JD 4020 Tractor Models

john deere 4020 value

Look at some JD 4020 tractor models that were famously sold in the United States. These include the following:

  1. John Deere 4020 Tractor Worth $50,000
  2. 1972 JD 4020 Tractor Worth $30,000
  3. 1970 JD 4020 Tractor Worth $26,000
  4. Other JD 4020 Tractors Auctioned in the United States

1. John Deere 4020 Tractor Worth $50,000

The rare John Deere 4020 Tractor model with an auction sale price of $50,000 formed part of an estate sale in Minnesota. Polk Auction Company handled it for Bill DeYager on June 18, 2011.

This auction did not only include the $50,000-worth JD 4020 tractor. But it included DeYager’s impressive line of Next Generation JD tractors featuring 10 and 20 Series models. One auctioned tractor was a 1971 JD 250 high crop model bought for $74,750.

2. 1972 JD 4020 Tractor Worth $30,000

A 1972 JD 4020 tractor with a diesel engine formed part of a consignment auction in northeast Indiana in February 2014. According to bidders, this particular tractor stood out due to its originality. It was, in fact, the 4th highest auction sale price ever.

This auction sale was handled by Schrader Real Estate and Auction Company Inc. When the bidding opened at $20,000; it went up to $25,000 in less than a minute. The tractor was sold for $30,000.

3. 1970 JD 4020 Tractor Worth $26,000

A 1970 John Deere 4020 tractor sold for $26,000 was included in a farm auction held in northwest Illinois. This particular unit with a “one owner” diesel featuring a side console was sold in August 2010.

4. Other JD 4020 Tractors Auctioned in the United States

A farm auction was held in Michigan in April 2012 in which a 1971 JD 4020 tractor was sold for $18,000.

In Ohio, a farm auction was held by Leith Auctions in March 2012. It included a 1972 JD 4020 with usage hours of 3,660.

Another farm auction held in Ohio in the same month and year featured a 1972 JD 4020. It was sold for $28,000.

In April 2012, a farm auction in Michigan included a 1971 JD 4020 tractor sold for $18,000.

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Frequently Asked Questions – What Is a John Deere 4020 Tractor?

john deere 4020 parts

Here are some frequently asked questions related to the John Deere 4020 agricultural tractor:

What’s a John Deere 4020 Worth?

A 1970 JD 4020 tractor can sell for $26,000.

How Much Does a John Deere 4020 Tractor Weigh?

The weight of a John Deere 4020 tractor varies depending on its model. In essence, it ranges between 8,225 and 9,560 lbs.

Is JD 4020 a Good Tractor?

The JD 4020 tractor is one of the all-around tractors that gave John Deere a positive image and a good name. It has been known as one of the best tractors of its time.

In fact, up until now, many businesses still use this tractor, especially in North America. From 1963 to 1972, there were over 180,000 JD 4020 tractors produced.

What Is Motor in a John Deere 4020?

A John Deere 4020 tractor either has a four-cycle, 6-cylinder diesel engine or a four-cycle, 6-cylinder, 12-valve gasoline engine.

How Much HP Does a 4020 Have?

A JD 4020 diesel tractor features a 6-cylinder engine tested at 91 PTO HP and 84 drawbars. Its Syncro Range transmission featuring eight forward speeds and two reverse speeds, came as standard features. Whereas the powershift transmission came as an optional feature.

How Much Can a John Deere 4020 Pull?

The John Deere 4020 tractor has a maximum pull of 10,184 lbs, equivalent to 4,619 kg.

Who Designed the John Deere 4020?

The classic John Deere 4020 tractors were also known as the New Generation of Power. They were designed and produced by John Deere in Waterloo, Iowa, from 1963 to 1972. There were over 170,000 units produced.

Chip Foose launched its customized JD 4020 tractor at a Commodity Classic event held in Anaheim, California, in 2010.

How Do You Check the Hydraulic Fluid on a John Deere 4020?

When checking the hydraulic fluid on a JD 4020, ensure to prevent the dipstick and the reservoir from getting dirty.

The first step is to remove the reservoir cap. The reservoir is typically found at the back of the driver’s seat. However, some models require you to detach a side panel and an engine cover.

Next, pull the dipstick out and determine the fluid level. Remember that you do not have to add fluid if it is not low.

If you need to add fluid, use a funnel to pour fresh oil into the reservoir gradually. After pouring a small amount of fluid, recheck the fluid level using the dipstick.

Repeat this process several times until you have poured enough fluid. This method prevents you from overfilling the reservoir.`

What Year Did John Deere Introduce the New Generation of Power?

John Deere launched the New Generation of Power in 1935. It redesigned 95 percent of its product line, which revolutionized farming.

How Much Hydraulic Oil Does a 4020 Hold?

Older JD 4020 diesel tractors had an oil capacity of 8 quarts. This increased to 12 quarts in 1969, beginning with the model with serial number 201 000. However, the high-crop diesel tractors still featured the 8-quart oil capacity throughout the production run.

How Wide Is a John Deere 4020?

A John Deere 4020 tractor measures 89.6 inches wide, equivalent to 227 cm.

Do You Check Hydraulic Oil While Running?

It is important to remember that when checking the hydraulic fluid level, the tractor should not be running. Make sure that the engine is turned off to get an accurate reading.

What Weight Is John Deere Hydraulic Oil?

The Hy-Gard oil can be used in most hydraulic and transmission applications that call for 5W 30 or 10W 30 engine oil. This oil goes beyond JD J20C specifications’ minimum requirements.

In Closing: Is John Deere 4020 Good?

To reiterate, John Deere 4020 is a well-known agricultural tractor that has given John Deere a good name and a positive image. From 1963 to 1972, there were more than 184,000 JD 4020 models manufactured.

It is one of the best tractors of its time. There are still JD 4020 tractors at work today, which you can find in many parts of the world.

You will not be able to find any brand-new JD 4020 tractors anymore. But, amazingly, it is not hard to find a pre-owned one. If you are interested in getting one, attend farm auctions. They will most likely feature JD 4020 tractors, which are in demand.

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