501 Standard Equipment

  • D-4 Track Size with 709 C3B Final Drives Track System
  • 560 mm (22 in) Double Bar Grouser pads with Mud/Snow Relief Shoes
  • 8 Lower Rollers, 2 Upper Rollers, All interchangeable
  • Heavy Duty “D” Tow Rings
  • Relief Sprockets
  • 163 kN (36,600 lb-force) Tractive Effort 2 Speed Track Motor

Upper Structure
  • Full Lighting Package - 10 Cab-mounted Halogen Lights
  • Radio Ready
  • Adjustable Shock Cushioned Seat
  • I-QAN® Hydraulic Control System with MDL full color graphics display screen
  • Heater/Air Conditioner

Boom Systems
  • 6.4 m (21 ft) Main and Stick with Tool Cylinder and Linkage (Reach To Tree)

  • 117 kW (157 HP) Cat C6.6 ACERT Tier 3 Engine
  • Side by Side Water/Hydraulic/Air Cooling Package
  • 12 Volt Electrical System with Master Disconnect, 160 Amp Alternator
  • 378 L (100 gal) Fuel Tank

  • 345 Bar (5000 psi) Variable Displacement Load Sense Hydraulic System
  • 307 L/min (81 gpm) Hydraulic Oil Flow
  • 230 L (60 gal) Hydraulic Oil Reservoir
  • Electric Hydraulic Oil Fill Pump
  • Oil Cooler with Thermal Bypass
  • Fully Proportional Electronic Controls

501 Optional Equipment

560 mm (22 in) Single Bar Grouser pads with Mud/Snow Relief Shoes

Radio/CD player with XM receiver

Heater, Artic package-includes engine, water and hydraulic oil heater

Boom Systems
  • 7 m (23 ft, 3 in) XL Main and Stick with Tool Cylinder and Linkage (Reach To Tree)
  • 8.2 m (27 ft) Telescopic V-bottom Boom Configuration (Reach To Tree)


Equipped with dependable Cat engines, load sensing hydraulics, and factory installed attachments, Caterpillar track harvesters offer the perfect solution for any cut-to-length application.


Gross Power 157.0 hp 117.0 kW Less
Engine Model Cat® C6.6 ACERT Cat® C6.6 ACERT Less

Hydraulic System

Hydraulic Oil Flow 81.0 gal/min 307.0 L/min Less
Hydraulic System Pressure 5000.0 psi 545.0 bar Less

Operating Specifications

Max Reach w/ Head 23.23 ft 7.08 m Less
Boom Reach 17.72 ft 5.4 m Less
Ground Clearance 24.02 in 610.0 mm Less
Maximum Drawbar Pull 34500.0 lb 154.0 kN Less

Service Refill Capacities

Hydraulic Oil Reservoir 60.0 gal 230.0 L Less
Fuel Tank 100.0 gal 378.0 L Less


Operating Weight w/o Head 35000.0 lb 15900.0 kg Less
Est Operating Weight 35000.0 lb 15875.8 kg Less


Track Length 142.99 in 3632.0 mm Less
Width 102.01 in 2591.0 mm Less
Height 130.98 in 3327.0 mm Less
Ground Clearance 24.02 in 610.0 mm Less


Number of Rollers 8 Lower, 2 Upper 8 Lower, 2 Upper Less
Undercarriage D-4 Track Size w/ 709 C3B Final Drives D-4 Track Size w/ 709 C3B Final Drives Less

Power Train

The Cat C6.6 ACERT Tier 3 Engine provides excellent power, fuel economy, serviceability, and durability while meeting Tier 3 emissions standards.

Boom Options

Optional 8.2 m (27’) Telescoping “V” Bottom (5-sided) Harvester Boom. Standard Booms Range from 6.4-7.0 m (21’-23’).

Operator Station

The unique front entry cab allows for easy entry and exit. Debris does not collect on the reverse slope windshield.


The tilt cab feature allows excellent access for service or daily maintenance needs.


The proven x-design carbody and large track system provide strength and durability. Side rails are designed so that debris does not collect. The fully-guarded, forestry-duty high walker undercarriage has integrated welded track guards.

Engineered Productivity

The large heavy-duty swing bearing and high swing torque enhance productivity.

Unobstructed Visibility

The engineered cab forward and rear engine design gives exceptional operator visibility. Better visibility means more production.


A large capacity fuel tank and hydraulic oil tank are integrated into the counterweight design.

Electronic Control System

The IQAN® computer based control system provides precise control of machine and attachment functions through the fully proportional valving system. All gauges are monitored on a single MDL full color screen.


A full line of Prentice processor/harvester heads are available, factory installed. Consult a Prentice Processing Head specification sheet for specific models and carrier application guide.

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