The John Deere 8RX 370 is a powerful four-track agricultural tractor designed for heavy-duty farm operations.
It features a robust 9.0-liter, 6-cylinder John Deere PowerTech™ diesel engine producing a rated power of 370 hp (275.9 kW) and a maximum power output of 407 hp (303.5 kW), offering strong performance for demanding tasks.
In the following content, we will introduce it in detail.

John Deere 8RX 370 Engine and Horsepower

  • Engine type: In-line 6-cylinder diesel with wet-sleeve cylinder liners and four valves per cylinder

  • Displacement: 9.0 L (549 cu in.)

  • Rated power: 370 hp (ECE-R120 standard)

  • Maximum power: 407 hp

  • PTO power: Rated 310 hp, with peak outputs higher in testing

  • Emission standard: Final Tier 4 compliant with DOC/DPF/SCR after-treatment system

  • Aspiration: Dual turbochargers with variable geometry and series fixed geometry turbo, air-to-air aftercooling, and cooled exhaust gas recirculation.

The John Deere 8RX 370 is equipped with a 9.0-liter inline 6-cylinder PowerTech™ diesel engine.

It delivers a rated power of 370 horsepower (272 kW) based on the ECE-R120 standard, and a maximum power output of 407 horsepower (303 kW).

The engine is designed to be B20 diesel compatible and meets Final Tier 4 emissions standards with advanced after-treatment systems.

This engine provides strong performance suitable for demanding agricultural tasks.

John Deere 8RX Dimensions and Weight

  • Wheelbase: Approximately 127.4 inches (323 cm)

  • Base weight: Around 43,000 lbs (19,504 kg), depending on configuration

  • Track widths available: 16.5, 18, 24, and 30 inches for adaptability to terrain and tasks.

Transmission Options

  • e23™ PowerShift 23-speed full power shift with Efficiency Manager

  • Infinitely Variable Transmission (IVT™) available for smooth speed control and efficiency.

Hydraulics and Hitch

  • Closed-center pressure and flow compensated hydraulic system

  • Flow rates: Standard 60 gpm (227 L/min), optional dual pumps up to 85 gpm (321 L/min)

  • Up to 6 rear selective control valves (SCVs) optional

  • Rear hitch: Category 4N/III with electronic draft sensing and capacity up to 20,000 lbs (9072 kg) lift.

Cab and Features

  • New larger and more comfortable cab with improved visibility

  • Features include air conditioning, Independent Link Suspension (ILS™), and user-customizable CommandPRO joystick controls with up to 11 reconfigurable buttons

  • Fully integrated precision agriculture technology for enhanced farm management and efficiency.

Manufacturer Information

  • Manufacturer: John Deere

  • Assembly location: Waterloo, Iowa, USA

  • Original pricing around $529,350 (2020 pricing)

Usage

The 8RX 370 is mainly used in large-scale agricultural applications requiring high tractive effort and stability, such as heavy tillage, planting, and seeding on variable terrain.

Its four-track design offers superior flotation and traction in wet or soft field conditions compared to wheeled tractors.

Common Problems and Parts

While highly reliable, some typical issues reported for heavy tractors in this class can include:

  • Track and undercarriage wear due to heavy use

  • Hydraulic system leaks or SCV malfunctions

  • Electronic or sensor faults related to advanced precision farming systems

  • Turbocharger or DEF system maintenance needs
    John Deere provides comprehensive OEM parts availability and dealer support for maintenance and repairs.

What are the main technical differences between the various 8RX 370 models？

The main technical differences between various John Deere 8RX 370 models primarily relate to the track width options and transmission choices.

  • The John Deere 8RX 370 models come with a choice of track widths for adaptability to different terrains and farming tasks, including 16.5-, 18-, 24-, and 30-inch wide tracks. These track widths affect ground pressure, flotation, and traction characteristics on fields.

  • For transmission, buyers can choose between the e23™ PowerShift 23-speed transmission with Efficiency Manager or the Infinitely Variable Transmission (IVT™), which offers smooth speed control and enhanced efficiency.

  • The axle and track assembly on the John Deere 8RX 370 line utilizes the John Deere 1700 pivoting beam axle allowing adjustable tread spacing with good agility.

  • The models share the same engine specifications (9.0 L, inline 6-cylinder diesel engine with 370 hp rated and 407 hp max power) and general tractor dimensions, so the core powertrain and performance are consistent across the John Deere 8RX 370 variants.

To summarize, the technical differences mainly lie in the track width options and transmission type, which influence handling, ride quality, and adaptability for specific agricultural needs, while the engine and basic specs remain the same across John Deere 8RX 370 models.

Conclusion

The John Deere 8RX 370 is a high-horsepower, technologically advanced track tractor, designed to deliver exceptional performance and versatility for professional row-crop farmers and large agricultural operations.

It combines strong engine power, flexible transmission options, advanced hydraulics, and user-focused controls with reliable manufacturer backing and support.