John Deere 8520 Tractor Parts

8520 parts and accessories

The John Deere 8520 tractor, manufactured from 2002 to 2005, became a popular choice for farmers needing robust power. Equipped with a John Deere PowerTech 8.1L diesel engine producing around 260 engine horsepower, the 8520 also delivered approximately 225 PTO horsepower. Its reliable performance and versatile capabilities made it a workhorse for various agricultural tasks, especially row crop operations.

The John Deere 8520 was introduced in 2002 as part of the John Deere 8020 series, replacing the earlier 8010 series. Production continued through 2005. Powering the 8520 is a John Deere PowerTech 8.1L 6-cylinder turbocharged diesel engine rated at approximately 260 engine horsepower. This engine has a displacement of 496 cubic inches (8.1 liters). The available transmissions included a 16-speed PowerShift transmission for smooth gear changes under load, contributing to efficient field operations. The 8520 boasted a PTO horsepower rating of around 225 hp, available at 1000 RPM, providing ample power for implements. Its hydraulic system delivered a flow rate of approximately 41 GPM to run multiple hydraulic remotes, supporting a range of implements. The 3-point hitch is a Category III/IIIN, capable of lifting approximately 13,000 lbs, making it suitable for heavy tillage equipment. Farmers commonly used the 8520 in row crop applications such as planting, cultivating, and harvesting, as well as for hay production and heavy tillage operations. The 8520 distinguished itself from other models in the 8020 series through its higher horsepower rating and enhanced hydraulic capacity, making it a premium choice for demanding agricultural tasks.

Specifications

Engine	John Deere PowerTech 260 HP 8.1L Diesel
PTO HP	225 HP @ 1000 RPM
Transmission	PowerShift 16-speed
Hydraulics	41 GPM, 4-5 remotes
3-Point Hitch	Category III/IIIN, 13,000 lbs
Fuel Capacity	150 gallons
Weight	22,150 lbs
Years Produced	2002-2005

Maintenance Tips

Check engine oil levels regularly (every 10 hours of operation) and change the oil and filter every 250 hours using John Deere-approved oil and filters.
Inspect hydraulic oil levels and filter condition every 50 hours; change hydraulic oil and filter every 1000 hours to prevent contamination and maintain optimal performance.
Use a fuel additive to prevent gelling in cold weather. Always drain water from the fuel/water separator. Clean or replace fuel filters as recommended in the operator's manual.
Before seasonal storage, completely fill the fuel tank, add fuel stabilizer, change engine oil, and grease all fittings. Disconnect the battery and store it in a cool, dry place.

History & Background

The John Deere 8520 was a key model in the 8020 series, introduced in 2002 to offer farmers a more powerful and technologically advanced tractor. It represented a significant advancement in tractor technology for the time, featuring improved engine performance, transmission options, and hydraulic capabilities, solidifying John Deere's position in the agricultural equipment market.

Frequently Asked Questions

What engine is in the John Deere 8520?

The John Deere 8520 is equipped with a John Deere PowerTech 8.1L 6-cylinder turbocharged diesel engine producing approximately 260 horsepower.

What is the PTO horsepower on a 8520?

The PTO horsepower rating for the John Deere 8520 is approximately 225 horsepower, available at 1000 RPM.

What oil filter fits the 8520?

The recommended oil filter for the John Deere 8520 is a John Deere filter part number RE504836. Cross-references include Wix 57202 and Fleetguard LF9009.

What are common parts needed for the 8520?

Common wear parts for the John Deere 8520 include engine oil filters (RE504836), fuel filters (RE522878), hydraulic filters (RE62419), fan belts, hydraulic cylinder seal kits, steering cylinder repair parts, and clutch components if applicable. Regularly inspect these components for wear and tear to ensure optimal performance.

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