John Deere 8650 Tractor Parts
8650 parts and accessories
The John Deere 8650, manufactured from 1980 to 1984, was a powerful articulated 4WD tractor designed for demanding agricultural tasks. Powered by a 300 horsepower diesel engine and boasting a robust PTO, the 8650 quickly gained popularity among farmers for its exceptional pulling power and reliability in large-acreage operations. This machine provided the muscle needed for heavy tillage and planting.
The John Deere 8650 was introduced in 1980 as part of John Deere's lineup of articulated four-wheel-drive tractors. Production continued through 1984. It features a John Deere 6466A 6-cylinder turbocharged diesel engine producing approximately 300 horsepower. The engine has a displacement of 466 cubic inches (7.6 liters). The 8650 came standard with a 12-speed Quad-Range transmission, providing ample gear selection for various field conditions. It delivers 240 PTO horsepower, available at 1000 RPM. The hydraulic system boasts a capacity of around 30 GPM, supporting several remote outlets for implements. It's equipped with a Category III 3-point hitch. Farmers utilized the 8650 extensively in row crop operations, for pulling large tillage implements like chisel plows and discs, and for planting. Compared to other models like the 8450, the 8650 offered increased horsepower and hydraulic capacity, making it a more productive option for larger farms.
Specifications
| Engine | John Deere 6466A 300 HP 466 ci Diesel |
|---|---|
| PTO HP | 240 HP @ 1000 RPM |
| Transmission | Quad-Range 12-speed |
| Hydraulics | 30 GPM, 3 remotes |
| 3-Point Hitch | Category III, 7,500 lbs |
| Fuel Capacity | 157 gallons |
| Weight | 26,410 lbs |
| Years Produced | 1980-1984 |
Maintenance Tips
- Check engine oil and filter every 250 hours of operation using John Deere-recommended oil and filter (or equivalent) to prevent engine wear.
- Inspect and maintain the hydraulic system regularly, including checking fluid levels and replacing hydraulic filters every 500 hours to ensure optimal performance and prevent damage to hydraulic components.
- Periodically inspect the fuel system, drain water from the fuel filter, and replace the fuel filter every 500 hours to prevent fuel contamination and maintain proper engine performance.
- Before seasonal storage, thoroughly clean the tractor, grease all fittings, and add fuel stabilizer to prevent fuel degradation and corrosion during extended periods of inactivity.
History & Background
The John Deere 8650 was launched in 1980 as a key addition to their large articulated tractor lineup. It represented a step up in power and capability, and helped farmers cover more ground efficiently. It solidified John Deere's position as a leader in high-horsepower agricultural machinery during the 1980s.
Frequently Asked Questions
What engine is in the John Deere 8650?
The John Deere 8650 is equipped with a John Deere 6466A 6-cylinder turbocharged diesel engine. It produces approximately 300 horsepower and has a displacement of 466 cubic inches (7.6 liters).
What is the PTO horsepower on a 8650?
The John Deere 8650 has a PTO horsepower rating of 240 HP and operates at 1000 RPM.
What oil filter fits the 8650?
The recommended oil filter for the John Deere 8650 is a John Deere AR50041 or an equivalent such as a Baldwin P140, Wix 51748, or Fram PH3600.
What are common parts needed for the 8650?
Common wear parts for the John Deere 8650 include engine oil filters, fuel filters, hydraulic filters, belts, hydraulic seals, steering components (tie rod ends, ball joints), and clutch parts.

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