The John Deere 5020, produced from 1966 to 1972, is a classic and iconic farm tractor from John Deere’s New Generation Series, widely recognized for its reliability and performance.​

Overview

The John Deere 5020 tractor was manufactured in Waterloo, Iowa, with a total of 12,909 units built.

It is a two-wheel-drive tractor known for its rugged design, ideal for a variety of farm tasks including tillage and loader work.

Original pricing was around $15,000 in 1972, making it a robust investment for farmers back then.​

5020 jd tractor Key Specifications

  • Engine: John Deere 8.7L (531 cubic inch) 6-cylinder diesel engine producing approximately 133 to 141 PTO horsepower.​

  • Transmission: 8-speed partially synchronized Synchro-Range transmission with 8 forward and 2 reverse gears.​

  • PTO: Independent rear PTO with a 1000 RPM rating @ 1900 RPM engine speed.​

  • Weight: Between 14,510 to 17,350 pounds depending on configuration and ballast.​

  • Wheelbase: 104 inches (264 cm).​

  • Fuel capacity: 68 gallons (257.4 liters).​

  • Hydraulics: Closed-center hydraulic system with 16 gallons (60.6 liters) capacity and 22 GPM pump flow, supporting 1 or 2 valves.​

  • Tires: Typical front tires size 9.50-20, rear 18.4-38 (row-crop).​

Key Features

  • Power steering and differential hydraulic wet disc brakes for reliable control.

  • Optional cab with heating and air conditioning for operator comfort.

  • Hydraulic reverser for efficient forward/reverse switching.

  • Integrated loader compatibility and high-capacity hydraulics for versatile attachment use.​

  • Outstanding operator visibility with optional panoramic glass roof and noise level of only 75 dB(A) under load..​

Manuals

The John Deere 5020 tractor operator’s manual provides comprehensive instructions for safe and efficient operation, covering controls, instruments, operation procedures, safety rules, fuels, lubricants, lubrication, periodic service, storage, troubleshooting, and attachments.

It emphasizes prestarting checks, proper warm-up, and maintenance practices such as oil level checks, coolant level, fuel filter draining, and lubrication of key parts.

The manual advises on engine speeds (slow idle around 800 rpm, rated PTO speed at 1900 rpm, and travel speed up to 2500 rpm), gear shifting techniques, and use of hand throttles for various working conditions.

Cold weather starting aids and precautions are also detailed.

Performance And Usage

The John Deere 5020 is a robust and versatile tractor from John Deere’s New Generation Series, designed for both efficiency and performance in agricultural tasks.

It is powered by a 6-cylinder, liquid-cooled diesel engine with a displacement of 531 cubic inches (8.7 liters), delivering a powerful 140 horsepower at the PTO (Power Take-Off) with tested drawbar horsepower near 122 hp.

This makes it well-suited for demanding field operations.

Its transmission is a partially synchronized Syncro-Range design featuring 8 forward and 2 reverse gears, providing versatility and control in various working conditions.

The tractor has two-wheel drive and power steering, enabling ease of maneuverability and handling, even in tight or uneven terrain.

The hydraulic system is a high-capacity, closed-center type with a flow rate of about 22 gallons per minute, supporting 1 or 2 remote valves for handling various implements effectively.

Its integrated loader configuration and hydraulic reverser enhance operational efficiency, especially for loader work and frequent direction changes.

The 5020 features power steering, differential hydraulic wet disc brakes, and an optional cab with air conditioning and heating for operator comfort.

With a wheelbase of 104 inches and a compact design, it offers excellent maneuverability, including a tight turning radius beneficial for confined spaces.

This tractor is widely respected for durable construction, operator comfort features such as tilt steering and joystick hydraulic controls, and a strong performance record in tilling, loader, and transport applications on farms.

Its large fuel tank of 68 gallons supports extended work periods without frequent refueling.

Overall, the John Deere 5020 balances power, reliability, and operator usability, making it a trusted choice for many agricultural tasks.

Maintenance Schedule

The John Deere 5020’s maintenance involves regular oil and filter changes (crankcase filter, transmission-hydraulic system fluid), cooling system checks, and hydraulic fluid management consistent with older diesel tractor practices.

Specific maintenance intervals are detailed in the John Deere 5020 service manual.​

Attachments

The tractor supports various attachments including front loaders, three-point hitches (Category II standard), circle hitches, and implements for tilling, planting, and hauling.

Loader kits are integrated for seamless operation, enhancing its versatility on the farm.​

Price (Historical and Current Market)

Originally priced around $15,000 in 1972, the John Deere 5020 now is mostly valued as a collector or used farm tractor with prices varying depending on condition and modifications, typically ranging widely in the secondhand market.

Conclusion

The John Deere 5020 remains a durable and capable tractor that set a benchmark for the New Generation Series with its strong engine, solid build, good operator comforts, and functional versatility.

Its robust diesel power, reliable transmission, and hydraulic capabilities make it suitable for a broad range of farming tasks even decades after its original production ended.​

This detailed overview captures the essence, specs, features, and upkeep guidance for the John Deere 5020, making it a valuable resource for farmers, collectors, and enthusiasts.