John Deere 440B Skidder – Parts, Specs & Serial Numbers

Description:

The John Deere 440B Skidder is a durable and compact logging machine built for rugged forestry operations. Known for its reliability, tight turning radius, and ease of maintenance, the 440B is a favorite among loggers working in tough terrain.

Engine Specs:

• Make: John Deere

• Model: 4219D

• Type: 4-cylinder, naturally aspirated diesel

• Displacement: 219 cu in (3.6L)

• Power Rating: Approx. 70 HP

Transmission:

• Type: Power shift

• Gears: 4 forward, 1 reverse

• Drive: 4WD with front and rear differential locks

• Clutch: Wet disc clutch system

Hydraulic System:

• Pump Flow: 22 GPM

• System Pressure: 2,250 PSI

• Control Valve: 3-spool open-center system

• Winch: John Deere 3325 or 4000 series hydraulic winch (optional)

Dimensions & Weight:

• Operating Weight: ~11,000 lbs

• Length: 158 in

• Width: 82 in

• Height (ROPS): 108 in

• Ground Clearance: 20 in

Performance Highlights:

• Excellent maneuverability in dense woods

• Durable front and rear axles

• Operator-friendly layout with full ROPS canopy

Maintenance & Common Issues:

• Frequent Maintenance Parts:

  • Brake Bands & Kits

  • Hydraulic Cylinder Seal Kits

  • Winch Cables and Drums

• Common Issues:

  • Brake fade – often resolved with new brake bands or cylinder rebuild kits

  • Hydraulic leaks – inspect lift cylinders and replace worn seals

  • Transmission wear – keep fluid levels checked and seals replaced

Pro Tips:

• Use only JD-spec hydraulic fluid to extend pump life

• Inspect differential lock engagement regularly for smooth operation

• Grease all pivot points frequently to avoid pin wear

Serial Number Location:
Located on the right-hand side of the engine block or beneath the dash panel. Serial numbers start at 440B – 206000 and up.