John Deere 440C Skidder – Cable Logging Skidder

Description:

The John Deere 440C Skidder is a classic cable skidder built for rugged forestry work, known for its mechanical simplicity, durability, and ease of maintenance. Manufactured in the late 1970s and early 1980s, the 440C remains popular among loggers for small to medium-sized timber operations.

Engine & Power

• Engine: John Deere 4239D 4-cylinder diesel

• Horsepower: 80 HP at 2,500 RPM

• Displacement: 3.9L (239 cu in)

• Cooling System: Liquid-cooled

• Fuel Tank Capacity: Approx. 25 gallons

Transmission & Hydraulics

• Transmission: 5-speed manual with high/low range

• Clutch: Dry disc

• Final Drives: Inboard planetary

• Hydraulic System Pressure: 2,000–2,200 psi

• Winch: Gear-driven, PTO-powered winch (John Deere 3325 or equivalent)

Dimensions & Performance

• Operating Weight: Approx. 11,000 lbs

• Wheelbase: 90 inches

• Ground Clearance: 18 inches

• Turning Radius: Tight, thanks to articulated steering

• Tire Size: Commonly 18.4x26

Maintenance Essentials

• Frequently Replaced Parts:

  • Winch cable

  • Clutch components

  • Steering cylinders and seals

  • Axle seals and bearings

• Link to John Deere 440C Steering Cylinder Seal Kits

• Link to 440C Winch Cable and Drums

• Link to Brake and Axle Repair Kits

Common Issues & Solutions

• Clutch Slippage: Usually caused by worn discs or pressure plate; replace with OEM clutch kits.

• Leaky Steering Cylinders: Rebuild with steering cylinder seal kits.

• Brake Failure: Typically a worn master cylinder or leaking brake line—find brake kits here.

Serial Number Info
Serial number is located on the right-hand side of the transmission housing. Be sure to check the prefix to confirm it’s a 440C (not 440A or 440B) when ordering parts.

Pro Tip: If converting from cable to grapple or adding a hydraulic winch, check hydraulic output compatibility and consider upgrading the pump.