John Deere 3140 Tractor Parts

3140 parts and accessories

The John Deere 3140, manufactured from 1979 to 1986, was a popular and reliable utility tractor known for its robust performance. Powered by a 82 HP diesel engine, this tractor delivered ample power for a variety of tasks. Its excellent PTO horsepower made it a favorite among farmers for powering implements and getting work done.

The John Deere 3140 was produced from 1979 to 1986 and quickly gained a reputation for its dependability and versatility. It was a mainstay on many farms throughout the late 20th century. The heart of the 3140 is a John Deere 4.239D 4-cylinder diesel engine, producing approximately 82 horsepower. This 239 cubic inch displacement engine provided plenty of torque for demanding applications. The transmission options typically included a partially synchronized gear transmission with 8 forward and 4 reverse gears, offering a good range of speeds for various tasks. Some models were also available with a Hi-Lo transmission. The independent PTO delivered around 72 horsepower at 540 RPM, making it suitable for operating mowers, balers, and other PTO-driven equipment. Hydraulic capacity was around 15 GPM, with 2 rear remotes available. The 3-point hitch was a Category II, capable of lifting approximately 4,700 lbs. Common applications for the 3140 included row crop work, hay production, livestock operations, and tillage. What distinguished it from other models was its balance of power, reliability, and user-friendly design, making it a solid choice for farmers of all sizes.

Specifications

Engine	John Deere 4.239D 82 HP 239 cu in Diesel
PTO HP	72 HP @ 540 RPM
Transmission	Partially synchronized gear 8F/4R
Hydraulics	15 GPM, 2 remotes
3-Point Hitch	Category II, 4700 lbs lift
Fuel Capacity	28.5 gallons
Weight	7,785 lbs
Years Produced	1979-1986

Maintenance Tips

Engine Oil & Filter: Change the engine oil and filter every 250 hours of operation using the recommended oil type (e.g., John Deere Plus-50 II). Regularly inspect the oil level.
Hydraulic System: Check hydraulic fluid levels regularly and change the hydraulic filter every 500 hours. Use only John Deere Hy-Gard or equivalent hydraulic fluid to prevent damage.
Fuel System: Drain any water accumulation from the fuel filter/separator regularly. Use clean, high-quality diesel fuel and consider using a fuel additive, especially during cold weather.
Seasonal Storage: Before storing the tractor for an extended period, fill the fuel tank to prevent condensation, add a fuel stabilizer, and disconnect the battery. Grease all fittings.

History & Background

The John Deere 3140 was introduced in 1979 as part of the '40 series' tractors, replacing earlier models and incorporating improved features. It offered a balance of power and features that appealed to a wide range of farming operations. The 3140 is remembered as a durable and reliable workhorse that helped shape agricultural practices during its production years.

Frequently Asked Questions

What engine is in the John Deere 3140?

The John Deere 3140 is equipped with a John Deere 4.239D 4-cylinder diesel engine, producing approximately 82 horsepower with a displacement of 239 cubic inches.

What is the PTO horsepower on a 3140?

The John Deere 3140 has a PTO horsepower rating of approximately 72 horsepower, operating at 540 RPM.

What oil filter fits the 3140?

The recommended oil filter for the John Deere 3140 is a John Deere AR50041 or equivalent. Cross-references include Fram PH3600, Wix 51794, and NAPA 1794.

What are common parts needed for the 3140?

Commonly needed parts for the John Deere 3140 include engine oil filters, fuel filters, hydraulic filters, fan belts, hydraulic seals, tie rod ends, and clutch components like the clutch disc and pressure plate.

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