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John Deere 640 Log Skidder - Parts, Specs & Serial Numbers

SKU:
John-Deere-640-LogSkidder-Specs
Side view of a John Deere 640 skidder with blade and winch
Fits Models:
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Part # John-Deere-640-LogSkidder-Specs

Description:

The John Deere 640 Log Skidder is a powerful and dependable forestry machine designed for rugged log skidding operations. Built with robust components and a reputation for durability, the 640 skidder has become a staple in logging operations since its introduction.

Engine & Powertrain:

  • Engine: John Deere 6414D 6-cylinder diesel

  • Displacement: 414 cu in (6.8L)

  • Rated Horsepower: Approx. 125 HP

  • Fuel Capacity: 52 gallons

  • Transmission: 4-speed Powershift with torque converter

Hydraulic System:

  • Hydraulic Pressure: 2,200 psi

  • Pump Type: Gear pump

  • Winch: John Deere 4000 Series or equivalent, hydraulically driven

Dimensions & Weight:

  • Operating Weight: ~20,000 lbs

  • Overall Length: 248 inches

  • Width: 102 inches

  • Height to Top of Cab: 110 inches

  • Tire Size: 18.4x34 or 23.1x26 (common variations)

Performance Highlights:

  • Articulated frame for superior maneuverability

  • Heavy-duty blade for pushing debris or grading

  • Cable or grapple skidder configurations

  • Full ROPS/FOPS cab for operator protection

Maintenance Essentials:

Common Issues & Quick Fixes:

  • Transmission Slipping: Often due to worn clutch packs or valve body issues—inspect and service transmission components regularly.

  • Hydraulic Leaks: Usually traced to damaged seals or hoses; replace with OEM-quality parts from Broken Tractor's John Deere section

  • Brake Fade: Addressed by replacing worn linings and master cylinders

Pro Tip: Serial number plate is typically located on the right side of the frame near the front articulation joint. Always verify your model year before ordering parts.

Browse our extensive selection of John Deere 640 Log Skidder parts to keep your machine hauling strong in the woods.

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Product: Category: Brand: Head Title: John Deere 640 Log Skidder | Parts, Specs & Maintenance Tips