John Deere 8400 Tractor Parts

8400 parts and accessories

The John Deere 8400, manufactured from 1996 to 1999, is a powerful row-crop tractor renowned for its reliability and performance. Equipped with an 8.1L PowerTech diesel engine producing around 225 horsepower and a PTO horsepower of approximately 190, the 8400 quickly became a favorite among farmers for its ability to handle demanding tasks. Its robust design and advanced features made it a staple in fields across the country.

The John Deere 8400 was introduced in 1996 as part of the 8000 series, replacing earlier models and setting a new standard for large row-crop tractors. Production continued until 1999. The heart of the 8400 is its John Deere 8.1L PowerTech six-cylinder diesel engine, delivering a rated 225 horsepower. This engine offered excellent torque and fuel efficiency for its time. Transmission options included a 16-speed PowerShift transmission, providing smooth and efficient gear changes. The 8400 features an independent 540/1000 RPM PTO, offering versatility for various implements. Its hydraulic system delivered around 45 GPM, with multiple remote valves available for controlling hydraulic implements. The tractor has a Category III 3-point hitch, capable of lifting heavy loads. The John Deere 8400 was commonly used for row-crop operations like planting and cultivating, hay production, livestock feeding, and heavy tillage work. Unlike smaller models, the 8400 was designed for large-scale farming operations demanding high horsepower and reliability.

Specifications

Engine	John Deere 8.1L 225 HP Diesel
PTO HP	190 HP @ 1000 RPM
Transmission	PowerShift 16-Speed
Hydraulics	45 GPM, 4 remotes
3-Point Hitch	Category III, 8,750 lbs
Fuel Capacity	150 gallons
Weight	20,750 lbs
Years Produced	1996-1999

Maintenance Tips

Engine Oil and Filter: Change engine oil and filter every 250 hours using the recommended John Deere oil type and filter. Regular oil changes help maintain engine performance and longevity.
Hydraulic System Maintenance: Check hydraulic fluid levels regularly and inspect for leaks. Replace hydraulic filters every 500 hours to prevent contamination and ensure optimal hydraulic system performance.
Fuel System Care: Use clean, high-quality diesel fuel and replace the fuel filter every 250 hours. Drain water from the fuel tank regularly to prevent fuel system issues.
Seasonal Storage: Before storing the tractor for the off-season, drain the fuel tank, add fuel stabilizer, and lubricate all grease fittings. This helps prevent corrosion and ensures the tractor is ready for use when needed.

History & Background

The John Deere 8400 was a key model in the 8000 series, introduced in 1996. This series represented a significant step forward in tractor technology for John Deere, offering increased power, improved operator comfort, and enhanced hydraulic performance. The 8400 established itself as a reliable and productive workhorse, contributing to the modernization of farming practices.

Frequently Asked Questions

What engine is in the John Deere 8400?

The John Deere 8400 is powered by an 8.1L John Deere PowerTech six-cylinder diesel engine producing 225 horsepower.

What is the PTO horsepower on a 8400?

The John Deere 8400 has a PTO horsepower rating of 190 HP, operating at either 540 or 1000 RPM.

What oil filter fits the 8400?

The recommended oil filter for the John Deere 8400 is a John Deere AR76204 or a Baldwin BD7060. Cross-references include Wix 51748 and Fram PH3600.

What are common parts needed for the 8400?

Common wear parts for the John Deere 8400 include engine oil filters, fuel filters, hydraulic filters, belts, hydraulic cylinder seal kits, steering components (tie rod ends, ball joints), and clutch components.

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