Description:
Serial Number Information
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PIN Plate Location: Upper rear corner of the engine frame
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Engine Serial Number: Right-hand side of cylinder block, behind the oil filter
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Hydraulic Pump Serial Number: Right-hand side of hydraulic pump housing
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Winch Serial Number (if equipped): Upper front of winch housing
Always reference the complete Product Identification Number (PIN) when ordering parts.
Key Specifications
| Feature |
Specification |
| Engine |
John Deere 6068H Turbocharged Diesel |
| Horsepower |
171 HP (127.5 kW) @ 2,200 RPM |
| Transmission |
Direct-Drive Power Shift |
| Forward Gears |
8 |
| Reverse Gears |
7 |
| Operating Weight |
31,975 lbs (14,500 kg) |
Performance & Drivetrain
| Feature |
Specification |
| Max Forward Speed |
13.6 mph (21.9 km/h) |
| Max Reverse Speed |
10.2 mph (16.4 km/h) |
| Fuel Capacity |
83 gallons (314 liters) |
| Wheelbase |
11.26 ft (3.43 m) |
| Ground Clearance |
2.02 ft (0.62 m) |
Grapple & Winch Details
| Feature |
Specification |
| Grapple Type |
Single Arch Grapple |
| Grapple Capacity |
10.45 ft² (0.97 m²) |
| Tong Opening at Tips |
9.59 ft (2.92 m) |
| Optional Winch |
John Deere, Max Pull: 43,449 lbs (19,700 kg) |
Hydraulic System
| Feature |
Specification |
| Pump Flow |
42 GPM (159 L/min) |
| System Pressure |
3,000 psi (207 bar) |
Dimensions
| Measurement |
Specification |
| Overall Length |
25.64 ft (7.82 m) |
| Overall Width |
10.6 ft (3.23 m) |
| Height to Cab |
9.95 ft (3.03 m) |
Key Features
Heavy-Duty Grapple Power
The 10.45 ft² grapple and 9.59 ft opening are ideal for large bundles of timber, offering excellent control and grip.
Turbocharged Diesel Performance
With 171 HP and 405 lb-ft of torque, the JD 6068H engine ensures optimal pulling strength even under full load conditions.
Direct-Drive Power Shift
Eight forward and seven reverse gears allow fast directional changes and fine control over skidding operations.
Optional Winch Muscle
Equip with a 43,449 lb-rated winch to tackle steep or off-path retrievals with ease.
Common Replacement Parts
Keep your John Deere 648G III running strong with top components available at Broken Tractor:
Engine Components
Turbochargers, injectors, head gaskets, thermostats, oil filters
Transmission & Drivetrain
Clutch packs, torque converters, gear selector valves, final drives
Hydraulic System
Control valves, grapple cylinders, hydraulic pump seals, hoses
Grapple & Winch Assembly
Tongs, pivot bushings, cylinder rebuild kits, winch cable, brake bands
Cab & Electrical
Joystick controllers, instrument panels, safety interlocks, display units
Maintenance Schedule
| Task |
Recommended Interval |
| Engine Oil & Filter |
Every 250 hours |
| Transmission Fluid & Filter |
Every 500 hours |
| Hydraulic Filter Service |
Every 500 hours |
| Winch Cable & Brake Check |
Weekly or before heavy skidding |
| Fuel System Cleaning |
Every 250 hours |
| Cooling System Flush |
Every 1,000 hours or annually |