| Manufacturer | John Deere |
| Price | 97,562(USD) |
| Model | 8650 |
| Equipment Type | Four-wheel Drive 4WD Tractors |
| Factory | Waterloo, Iowa, USA |
NEBRASKA TRACTOR TEST 1435 2
| Description | Diesel 16-speed 4WD May 13 - 24, 1982 Link: Nebraska Tractor Test 1435 file PTO performance Drawbar performance |
| Power at rated engine speed | 238.56hp / 177.9kW |
| Fuel use | 15.4gal/hour / 58.3l/hour |
| Max power | 219.93hp / 164.0kW |
| Max pull | 28,257lbs / 12817kg |
JOHN DEERE 8650 POWER
| Engine | 290hp / 216.3kW |
| PTO (claimed) | 235hp / 175.2kW |
| Drawbar (tested) | 219.93hp / 164.0kW |
| PTO (tested) | 238.56hp / 177.9kW |
ENGINE DETAIL
The John Deere 8650 features a robust 6-cylinder, 10.1L intercooled turbocharged diesel engine, delivering 290hp at 2100 RPM, making it suitable for heavy-duty agricultural tasks. Its 15.2:1 compression ratio enhances thermal efficiency, while the dual paper element air cleaner with aspirator helps maintain optimal engine performance, contributing to longevity. However, the oil and coolant capacities of 28 quarts and 48 quarts respectively may require more frequent maintenance checks under intensive operational scenarios, though this can aid in better temperature regulation and reduced wear under load.
| Description | John Deere intercooled turbocharged diesel 6-cylinder liquid-cooled |
| Displacement | 619ci / 10.1L |
| Bore/Stroke | 5.12x5.00inches / 130x 127mm |
| Power | 290hp / 216.3kW |
| Air cleaner | dual paper elements with aspirator |
| Compression | 15.2:1 |
| Rated RPM | 2100 |
| Starter volts | 12 |
| Oil capacity | 28qts / 26.5L |
| Coolant capacity | 48qts / 45.4L |
JOHN DEERE 8650 ENGINE
The John Deere 8650 features a robust 10.1L 6-cylinder diesel engine, providing significant power output and torque suitable for heavy-duty agricultural tasks. Its hydraulic capacity and advanced transmission options can enhance operational efficiency, making it ideal for large-scale farming applications where sustained performance and durability are crucial. However, its size and weight may pose challenges in maneuverability in smaller fields or tight spaces.
| Description | John Deere 10.1L 6-cyl diesel |
TRANSMISSION
The John Deere 8650 features a Quad-Range partial power shift transmission with 16 forward and 6 reverse gears, offering versatility for diverse agricultural applications. The perma-clutch hydraulic wet disc system enhances durability, but requires the operator to stop for range selection, potentially affecting efficiency during field operations. The 150-quart oil capacity ensures optimal lubrication, but may demand regular maintenance checks to prevent oil degradation in prolonged use.
| Transmission | Quad-Range |
| Type | partial power shift |
| Gears | 16 forward and 6 reverse |
| Clutch | Perma-Clutch hydraulic wet discs |
| Oil capacity | 150qts / 142.0L |
| Description | Tractor must be stopped to select one of four ranges. Clutchless power shift between speeds 1-2 and 3-4 in range. A synchronized shift (using clutch) can be made between 2 and 3 in range |
SPEEDS
| Description | 18.4-38 tires |
MECHANICAL
The John Deere 8650 features a robust 4x4 articulated chassis, providing superior maneuverability and traction in diverse terrain. Its inboard planetary final drives enhance durability and reduce maintenance, while the electro-hydraulic differential lock improves stability during challenging conditions. The hydraulic wet disc brakes ensure reliable stopping power, making it well-suited for heavy-load operations, though the complexity of the 16-speed partial power shift may require skilled operators for optimal performance.
| Chassis | 4x4 articulated 4WD |
| Final drives | inboard planetary |
| Differential lock | electro-hydraulic front and rear |
| Steering | articulated power |
| Brakes | hydraulic wet disc |
| Cab | Sound-Gard cab with air-conditioning |
| Transmission | 16-speed partial power shift |
CAPACITY
| Fuel | 214gal / 810.0L |
| Hydraulic system | 37.5gal / 141.9L |
HYDRAULICS
| Type | closed center constant-pressure |
| Capacity | 37.5gal / 141.9L |
| Valves | 2 to 4 |
| Pump flow | 32gpm / 121.1lpm |
TRACTOR HITCH
| Rear Type | III/IIIN |
| Control | lower-link draft sensing |
| Rear lift | 9260lbs / 4200kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Clutch | hydraulic wet disc |
| Rear RPM | 1000 (1.75) |
JOHN DEERE 8650 TIRES
The John Deere 8650 tractor is equipped with versatile tire options, including a range of dual-size Ag front and rear tires, which enhance traction and stability on varied terrain. The larger rear tire options (30.5-32 and 20.8-34) provide improved flotation and reduced soil compaction, making it ideal for heavy tillage operations. However, the choice of tires can affect maneuverability and overall performance; it’s essential to select the appropriate tire size based on specific field conditions and operational requirements.
| Ag front | 24.5-32 |
| Ag rear | 24.5-32 / 24.5R32 / 30.5-32 / 30.5R32 / 20.8-34 / 23.1-34 / 20.8-38 |
DIMENSIONS
| Wheelbase | 125inches / 317cm |
| Length | 223.5inches / 567cm |
| Shipping weight | 29320lbs / 13299kg |
| Operating weight | 30270lbs / 13730kg |
| Front axle | Long axle: 3.937 by 118.6inches / 99by 3012mm |
| Rear axle | Long axle: 3.937 by 118.6inches / 99by 3012mm |
| Front tread | 66 to 129inches / 167to 327cm |
| Rear tread | 66 to 129inches / 167to 327cm |
DIMENSIONS & TIRES
The John Deere 8650, with a wheelbase of 125 inches (317 cm), enhances stability and maneuverability, crucial for various farming operations. Weighing between 29,320 to 30,270 pounds, it provides substantial traction and power, making it suitable for heavy-duty tasks. However, the uniform 18.4-38 tire size may limit operational flexibility on varied terrains, warranting careful consideration of soil conditions before deployment.
| Wheelbase | 125inches / 317cm |
| Weight | 29320 to 30270 pounds |
| Front tire | 18.4-38 |
| Rear tire | 18.4-38 |
BLADE 1
| Type | front-mount John Deere 864 |
| Width | 144inches / 365cm |
| Height | 38inches / 96cm |
| Lift height | 20inches / 50cm |
| Angle | 18° |
| Cut depth | 6 inches /15 cm |
| Lift type | hydraulic |
| Angle type | manual |
BLADE 2
| Type | front-mount John Deere 865 |
| Width | 144inches / 365cm |
| Height | 38inches / 96cm |
| Lift height | 20inches / 50cm |
| Angle | 18° |
| Cut depth | 6inches / 15cm |
| Lift type | hydraulic |
| Angle type | hydraulic |
8650 SERIAL NUMBERS
| Location | Serial number plate on the rear of the tractor |
| 1982 | 1500 |
| 1983 | 3000 |
| 1984 | 5001 |
| 1985 | 7001 |
| 1986 | 8001 |
| 1987 | 8501 |
| 1988 | 9001 |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 110 |
| Batteries | 2 |
| Battery CCA | 975 |
| Battery volts | 6 |