The John Deere 6140M is a versatile mid-frame utility tractor designed for large farms, livestock, cropping, and contractor use.

It offers a powerful 140 hp engine, robust build, and a comfortable operator experience.

Engine and Performance Specs

The John Deere 6140M is powered by a 6.8L PowerTech™ E 6-cylinder diesel engine delivering 140 hp rated power (145 hp max).

It meets Final Tier 4 (FT4)/Stage V emissions standards and features refined high-pressure common rail fuel injection with up to 2500 bar injection pressure.

Extended oil drain intervals of up to 750 hours with John Deere Plus-50™ II oil improve service intervals.

What are the precise engine specs and power curve for the John Deere 6140M?

The John Deere 6140M is equipped with a John Deere PowerTech PVX 4-cylinder, 4.5L (275 cu in.) diesel engine featuring liquid cooling and a bore/stroke of 106 x 127 mm.

It has a compression ratio of 16.1:1 and uses a high-pressure common rail fuel injection system. The engine runs at a rated speed of 2100 RPM.

Engine Power and Torque:

  • Rated gross power: 140 hp (104.4 kW)

  • Maximum gross power: 145 hp (108.1 kW)

  • Rated PTO power: approximately 109 hp (80 kW)

  • Maximum PTO power at 1000 RPM (with Intelligent Power Management, IPM): up to 134 hp (99 kW)

  • Peak torque: 466 lb-ft (632 Nm) at 1600 RPM

Power Curve Highlights:

  • The engine delivers a significant torque rise of around 40%, which enhances performance under load.

  • The engine’s dual turbocharger system includes a variable geometry turbocharger (VGT) with a fixed geometry turbo in series, providing consistent power and responsiveness across the RPM range.

  • With IPM technology, the engine temporarily increases horsepower for demanding tasks, boosting rated power to about 160 hp (118 kW) and max power to 166 hp (122 kW).

This engine setup ensures strong performance with excellent fuel efficiency and low emissions, meeting Final Tier 4 (FT4) emission standards through advanced after-treatment components like diesel particulate filter (DPF), diesel oxidation catalyst (DOC), and selective catalytic reduction (SCR).

The power and torque characteristics are optimized for a wide range of farming applications, helping the 6140M handle heavy fieldwork such as seeding and tilling with ease.

This detailed engine specification and power curve make the John Deere 6140M a robust and reliable utility tractor for demanding agricultural tasks.

Transmission and Suspension

The tractor offers a choice of five transmission options and includes a Triple Link Suspension (TLS) Plus MFWD front axle for improved ride comfort and handling.

It has a 2.765-meter wheelbase and full-frame design lending it rugged durability.

Operator Features

The John Deere 6140M has an updated cab with ergonomic right-hand and CommandARM™ consoles aligned with a modern cornerpost display.

It delivers an intuitive operator experience with excellent visibility due to more glass all around. Lighting packages include LED options for bright, long-lasting illumination.

Weight and Dimensions

Exact weight figures vary but given its mid-frame category and full-frame build, the John Deere 6140M is a solid and robust tractor capable of handling heavy fieldwork involving seeding, tilling, and lifting.

Manual and Service Information

Detailed diagnostic and test manuals are available covering systems such as engine, transmission, electrical, trouble codes, and safety.

These manuals provide comprehensive guidance on maintenance and troubleshooting.

Common Problems

While specific common problems for the John Deere 6140M are less frequently reported, John Deere tractors in similar categories are known for occasional water pump failure, clutch pack wear in the transmission, engine issues related to head gaskets or EGR valves, and brake wear due to single oil supply systems.

Proper monitoring and regular servicing are advised to avoid costly repairs.

Price

Exact pricing varies by region and dealer configurations. The 6140M’s price will depend on options chosen such as transmission, lighting packages, and additional features.

Conclusion

In summary, the John Deere 6140M is a powerful, reliable, and comfortable utility tractor ideal for a wide range of agricultural tasks, backed by John Deere’s strong service network and support infrastructure.

It balances rugged performance with operator-friendly controls and modern technology for efficient farm operation.