John Deere 6420 Tractor Parts

6420 parts and accessories

The John Deere 6420 tractor, manufactured from 2002 to 2007, gained popularity for its versatility and reliability on the farm. Powered by a robust John Deere PowerTech 4.5L diesel engine producing around 100 horsepower, it offered ample power for various tasks. With a PTO horsepower rating suitable for a wide range of implements, the 6420 became a staple for farmers needing a dependable utility tractor.

The John Deere 6420 was introduced in 2002 as part of the John Deere 6020 series, replacing the earlier 6010 series. Production continued through 2007. It features a John Deere PowerTech 4.5L 4-cylinder turbocharged diesel engine, delivering approximately 100 horsepower. The engine displacement is 276 cubic inches (4.5 liters). Transmission options included a range of choices, most commonly the PowrQuad transmission offering 16 forward and 16 reverse speeds, providing excellent speed control for diverse applications. The independent PTO delivers around 85 PTO horsepower with options for 540 and 1000 RPM. The hydraulic system boasts a capacity of approximately 21 GPM, powering typically two to three rear remotes. The 3-point hitch is a Category II hitch, capable of lifting around 6,724 lbs. Commonly used in row crop operations, hay production, livestock management (feeding and manure handling), and light tillage, the 6420 distinguished itself with its improved cab comfort compared to previous models and its electronic engine controls for enhanced performance and fuel efficiency. It provided a good balance between power, size, and features within the John Deere tractor lineup, making it a versatile choice for many farming operations.

Specifications

Engine	John Deere PowerTech 4.5L 100 HP Diesel
PTO HP	85 HP @ 540/1000 RPM
Transmission	PowrQuad 16F/16R
Hydraulics	21 GPM, 2-3 remotes
3-Point Hitch	Category II, 6,724 lbs
Fuel Capacity	37.4 gallons
Weight	9,880 lbs
Years Produced	2002-2007

Maintenance Tips

Engine Oil and Filter: Change the engine oil and filter every 250 hours using the recommended John Deere engine oil and filter. Regularly check the oil level and inspect for any leaks.
Hydraulic System Maintenance: Inspect hydraulic fluid levels regularly and change the hydraulic filter every 500 hours or annually, whichever comes first. Use only approved John Deere hydraulic fluid to prevent damage to the hydraulic components.
Fuel System Care: Use clean, high-quality diesel fuel. Replace the fuel filter every 500 hours or annually to prevent fuel system contamination and ensure optimal engine performance.
Seasonal Storage: Before storing the tractor for the off-season, drain the fuel tank, add a fuel stabilizer, and run the engine briefly to distribute the stabilizer. Disconnect the battery and store it in a cool, dry place.

History & Background

The John Deere 6420 was launched in 2002 as part of the 6020 series, succeeding the 6010 series. It represented an advancement in tractor technology with features like electronic engine controls and improved operator comfort. The 6420 is remembered as a versatile and reliable machine that contributed to the modernization of farming practices during the early 2000s.

Frequently Asked Questions

What engine is in the John Deere 6420?

The John Deere 6420 is equipped with a John Deere PowerTech 4.5L 4-cylinder turbocharged diesel engine producing approximately 100 horsepower.

What is the PTO horsepower on a 6420?

The John Deere 6420 delivers around 85 PTO horsepower and has PTO speed options of 540 and 1000 RPM.

What oil filter fits the 6420?

The recommended oil filter for the John Deere 6420 is typically a John Deere filter part number RE504836 or equivalent. Common cross-references include Wix 57202 and Baldwin B7349.

What are common parts needed for the 6420?

Common wear parts for the John Deere 6420 include engine oil filters, fuel filters, air filters, hydraulic filters, fan belts, hydraulic seals, steering components (tie rod ends), and clutch parts (if applicable based on the transmission type).

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