John deere 4020 tractor specs: Power, Precision, and Performance

John deere 4020 tractor specs: The John Deere 4020 tractor is not just a machine; it’s an icon that has left an indelible mark on the world of agriculture. With its unmistakable green and yellow livery, this workhorse has graced farms and fields for generations, earning a reputation for power, precision, and performance. In this article, we delve into the heart of the John Deere 4020, exploring its history, specifications, and why it became one of the most beloved and enduring tractors in the industry. Join us on a journey through time and technology as we uncover the remarkable story of the John Deere 4020 tractor.

Why was the 4020 so popular?

The John Deere 4020 tractor gained immense popularity for several key reasons:

  • Versatility: The 4020 was designed to be a versatile workhorse on the farm. It came with a range of configurations to suit different needs, including row-crop and standard models. This versatility made it a valuable asset for farmers engaged in various types of agricultural operations.
  • Reliability: John Deere has always been associated with building reliable and durable machinery, and the 4020 was no exception. It was known for its robust construction, dependable engine, and long-lasting performance, which endeared it to farmers.
  • Powerful Engine: The 4020 was equipped with a powerful 6-cylinder engine that delivered ample horsepower. This extra power was crucial for handling a wide range of farm tasks, from plowing fields to operating heavy equipment.
  • Innovative Features: John Deere introduced several innovative features in the 4020, such as the Syncro-Range and Power Shift transmissions. These advancements improved the tractor’s efficiency and ease of use, setting it apart from competitors.
  • Long Production Run: The 4020 had a long production run, spanning from 1963 to 1972. This extended availability meant that farmers could easily find replacement parts and service for their tractors, contributing to its popularity.
  • Resale Value: Due to its reputation for reliability and durability, used 4020 tractors held their value well. Many farmers could sell their older models and upgrade to newer ones without a significant loss, making it an attractive investment.
  • Adaptability: The 4020 was adaptable to various implements and attachments, allowing farmers to perform a wide range of tasks with a single tractor. This adaptability saved both time and money on the farm.
  • Comfort and Ergonomics: John Deere paid attention to operator comfort and ergonomics, making long hours in the tractor more manageable. Comfortable seating, easy-to-reach controls, and good visibility all contributed to its popularity.
  • Dealer Support: John Deere’s extensive dealer network provided excellent support to farmers, offering maintenance, repairs, and access to genuine parts. This support system enhanced the overall ownership experience.
  • Legacy: The 4020 built on the legacy of earlier successful John Deere models, earning the trust of generations of farmers. Its reputation as a reliable and capable tractor contributed to its enduring popularity.

In summary, the John Deere 4020’s popularity can be attributed to its versatility, reliability, powerful engine, innovative features, and the overall support and trust associated with the John Deere brand. It became an iconic tractor in the agricultural industry and remains highly regarded among farmers and collectors today.

John deere 4020 tractor seat replacement

Replacing the Seat on Your John Deere 4020 Tractor: If you own a John Deere 4020 tractor and find yourself in need of a seat replacement, you’re in the right place. The seat of your tractor plays a crucial role in ensuring your comfort during those long hours in the field.

Over time, wear and tear are inevitable, but fear not – replacing the seat is a manageable task that can breathe new life into your trusty workhorse. In this guide, we’ll walk you through the steps to replace the seat on your John Deere 4020 tractor, so you can get back to tackling the tasks on your farm with ease and comfort.

John Deere 4020 Tractor specs

Engine DetailJohn Deere Diesel
Type6-cylinder 12-valve liquid-cooled inline
Oil CapacityEarly: 8 qts (7.6 L) <br> Late: 12 qts (11.4 L)
Displacement404 ci (6.6 L)
Bore/Stroke4.25×4.75 inches (108 x 121 mm)
Rated RPM2200
Idle RPM600-2500
Operating RPM1500-2200
Firing Order1-5-3-6-2-4
Starter Volts24
Coolant Capacity24 qts (22.7 L)
Intake Valve Clearance0.018 inches (0.457 mm)
Exhaust Valve Clearance0.018 inches (0.457 mm)
Engine DetailJohn Deere Gasoline (Original)
Type6-cylinder 12-valve liquid-cooled inline
Oil Capacity9 qts (8.5 L)
Displacement340 ci (5.6 L)
Bore/Stroke4.25×4.00 inches (108 x 102 mm)
Rated RPM2200
Idle RPM650-2500
Operating RPM1500-2200
Firing Order1-5-3-6-2-4
Starter Volts12
Coolant Capacity24 qts (22.7 L)
Sparkplug Gap0.025 inches (0.635 mm)
Point Gap0.016 inches (0.406 mm)
Intake Valve Clearance0.015 inches (0.381 mm)
Exhaust Valve Clearance0.028 inches (0.711 mm)
Engine DetailJohn Deere Gasoline (Later Model)
Type6-cylinder 12-valve liquid-cooled inline
Displacement362 ci (5.9 L)
Bore/Stroke4.25×4.25 inches (108 x 108 mm)
Rated RPM2200
Firing Order1-5-3-6-2-4
Starter Volts12
Oil Capacity8 qts (7.6 L)
Coolant Capacity24 qts (22.7 L)
Engine DetailJohn Deere LP Gas
Type6-cylinder 12-valve liquid-cooled inline
Displacement362 ci (5.9 L)
Bore/Stroke4.25×4.25 inches (108 x 108 mm)
Rated RPM2200
Firing Order1-5-3-6-2-4
Starter Volts12
Oil Capacity8 qts (7.6 L)
Coolant Capacity24 qts (22.7 L)

This table summarizes the engine details for various John Deere models, including oil capacity, displacement, compression, and more.

John Deere 4020 Tractor transmission specs

Transmission DetailJohn Deere Syncro-RangeJohn Deere Power Shift
TypePartially SynchronizedFull Power Shift
Gears8 Forward and 2 Reverse8 Forward and 4 Reverse
Oil Capacity52 qts (49.2 L)68 qts (64.4 L)
Oil Type303 Special303 Special
DescriptionSyncro-Range requires the tractor to be stopped and clutch depressed to select one of four shift stations. Once a station is selected, the tractor can be shifted on the move between the two forward gears (and single reverse in stations 1 and 2) by using the clutch.Power Shift allows shift-on-the-move between gears without clutching.

This table summarizes the transmission details for John Deere tractors, including the type of transmission, number of gears, oil capacity, and oil type, for both Syncro-Range and Power Shift models.

John Deere 4020 Tractor Dimensions

John Deere 4020 TiresAg FrontAg Rear
Row Crop6.00-1615.5-38
DimensionsRow CropStandardLong Rear AxleExtra Long Rear Axle
Wheelbase (inches)97.5100.25
Wheelbase (cm)247254
Length (inches)151
Length (cm)383
Width (inches)89.6
Width (cm)227
Regular Rear Axle (inches)3.375 by 91
Regular Rear Axle (mm)85 by 2311
Long Rear Axle (inches)3.375 by 104
Long Rear Axle (mm)85 by 2641
Extra Long Rear Axle (inches)3.375 by 112
Extra Long Rear Axle (mm)85 by 2844
Front Tread (inches)48.5 to 82.25
Front Tread (cm)123 to 208
Rear Tread (inches)60 to 9166 to 9767 to 105
Rear Tread (cm)152 to 231167 to 246170 to 266
John Deere 4020 WeightShipping (lbs)Operating (lbs)Ballasted (lbs)
Diesel Syncro8,4368,94513,980*
Gas Syncro8,2258,645
LP Syncro8,319
Gas Powershift9,240
Diesel Powershift9,560
John Deere 4020 HeightRow-Crop Steering Wheel (inches)Standard Steering Wheel (inches)Standard Exhaust (inches)Row Crop Exhaust (inches)
Height (cm)197198224225

This table summarizes various specifications for the John Deere 4020 tractor, including tire sizes, dimensions, weights, and heights, in both inches and centimeters where applicable.

John deere 4020 price

If you’re in the market for a John Deere 4020 tractor, you’re probably curious about the prices you can expect to encounter. The John Deere 4020 has a storied history as a reliable workhorse on farms across the world. Whether you’re looking to purchase one for your farming operation or as a collector’s item, understanding the factors that influence its price is essential.

Most Popular 40-99 HP John Deere 4020 Listings:

John deere 4020 price


How many bottom plow can a 4020 pull? A stock 4020 or 4230 would easily handle 4-18’s and a lot of guys pulled 5 16’s or 18’s.

How many John Deere 4020 are there? The 4020 is significant for its great popularity; over 184,000 units were built.

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