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Power Train

Exceptional Power and Fuel Efficiency


Continuous, Reliable and Responsive Control

Operator Station

Comfort and Convenience to Keep People Productive

Structures and Undercarriage

Built to Work in Rugged Environments

Boom and Stick

Made for High Stress and Long Service Life


Work Tool Options to Meet Your Needs

Owning and Operating Costs

Proven Best Investment


Easy to Maintain. Easy to Service.

Customer Support

Ready to Help. Anytime. Anywhere.


Reducing Environmental Impacts

501HD Standard Equipment

  • 12V system
  • Master disconnect
  • Circuit breaker protection
  • 150 Amp alternator
  • Two 12V maintenance free batteries
  • Full lighting package - 12 cab mounted halogen light fixtures
  • IQAN programmable control system
  • MD3 full color graphics display screen

  • Pressurized OPS-FOPS-ROPS cab
  • Dual joystick control
  • Reverse slope windshield
  • Skylight
  • Seat belt
  • Isolation mountings
  • Tinted 12.7 mm (1/2 in) polycarbonate windows
  • Heated air suspension seat
  • 40,000 BTU AC/Heater system with auto temp control
  • Window defroster vents
  • Two 12V power points
  • Dome light
  • Radio ready - includes speakers and AM/FM antennae
  • Cup holder
  • Front entry door
  • Travel alarm
  • Electric cab tilt
  • Fire extinguisher mounting pad
  • 3 escape routes

  • Cat C6.6 ACERT™ engine meets Tier 3 emissions requirements
  • Infinitely variable travel speed
  • 49° C (120° F) ambient temperature cooling package
  • Removable debris screen
  • Swing out A/C condenser
  • 378 L (100 gal) fuel tank
  • Fuel water separator

  • 140 cc (8.54 in3) variable displacement pump
  • Closed circuit load sensing valves
  • 228 L (60 gal) hydraulic tank
  • Electric hydraulic oil fill pump

  • Fully guarded forestry duty high walker undercarriage
  • 8 lower rollers, 2 upper rollers
  • Rock guard - shoe supports
  • 610 mm (24 in) DG grouser pads with mud and snow relief
  • Relief sprockets
  • 2 speed track motors
  • Automatic track brakes
  • Interchangeable upper and lower rollers
  • Heavy duty “D” tow rings

  • Fixed boom arrangement with 3 bar linkage
  • Telescopic boom arrangement with “V” bottom design

  • 50% concentration extended life coolant

501HD Optional Equipment

  • 610 mm (24 in) SG grouser pads with mud and snow relief
  • 760 mm (30 in) DG grouser pads with mud and snow relief

  • AM/FM/CD/Satellite Radio receiver
  • Sun shades
  • Five above door HID work lights
  • Four way seat isolator
  • Cold weather engine coolant and hydraulic tank warm up system
  • Harvesting heads


Cat® track harvesters are equipped with dependable Cat engines, load sensing hydraulics and factory installed attachments. The forward-mounted cab and rear engine placement give the operator excellent visibility over the entire harvest area. The unique front entry cab allows for easy entry and exit and the cab tilts for servicing. The telescoping boom’s V-shaped bottom extends the life of the wear pads and minimizes side-to-side movement as the boom telescopes in and out.


Gross Power 163.0 hp 122.0 kW Less
Engine Model Cat® C6.6 ACERT™ Tier 3 Cat® C6.6 ACERT™ Tier 3 Less
Gross Power @ 1,800 rpm 163.0 hp 122.0 kW Less

Hydraulic System

Hydraulic System Pressure 5000.0 psi 344.0 bar Less
Hydraulic Oil Flow @ 2,200 rpm 81.0 gal/min 307.0 L/min Less
Pump Size - Carrier and Implement 8.54 in3 140.0 cm3 Less

Operating Specifications

Max Reach w/ Head 27.0 ft 8.23 m Less
Maximum Tractive Effort 43400.0 lb 193.0 kN Less
Swing Speed 7.0 RPM 7.0 RPM Less
Swing Torque 30388.0 ft-lb 41200.0 N·m Less
Travel Speed - High 1.9 mph 3.0 km/h Less
Travel Speed - Low 1.1 mph 1.8 km/h Less

Service Refill Capacities

Cooling System 6.25 gal 23.6 L Less
Engine Oil 4.0 gal 15.0 L Less
Hydraulic System 60.0 gal 227.0 L Less
Hydraulic Tank 60.0 gal 228.0 L Less
Swing Drive 1.0 gal 3.78 L Less
Fuel Tank 100.0 gal 378.0 L Less


Operating Weight w/o Head 40000.0 lb 18000.0 kg Less
Operating Weight (without attachment) 40000.0 lb 18000.0 kg Less


FOPS/OPS/ROPS Cab meets FOPS/OPS/ROPS requirements Cab meets FOPS/OPS/ROPS requirements Less


Number of Rollers 2 upper, 8 lower 2 upper, 8 lower Less
Track Length 156.0 in 3960.0 mm Less
Final Drives 709BC 709BC Less
Ground Clearance 26.0 in 660.0 mm Less
Size/Pitch (D-5 size) 7.5 in 190.0 mm Less
Track Gauge 88.0 in 2235.0 mm Less


Fixed Linkage Boom Reach to Pin 19.85 ft 6.05 m Less
Telescopic Boom Reach to Pin 26.0 ft 7.93 m Less

Power Train

Displacement 403.0 in3 6.6 L Less
Engine Model Cat® C6.6 ACERT™ Cat® C6.6 ACERT™ Less
Gross Power @ 1,800 rpm 163.0 hp 122.0 kW Less
Rated Power @ 2,200 rpm 156.0 hp 116.5 kW Less
Torque - max 504.0 ft-lb 683.0 N·m Less

Operating Weights

Ground Pressure (standard pads) 7.11 psi 49.0 kPa Less
Operating Weight with Attachment (est.) 45000.0 lb 20411.0 kg Less
Operating Weight without Head 40000.0 lb 18000.0 kg Less

Boom System

Fixed Linkage Lift Capacity, Gross - max reach 8500.0 lb 3856.0 kg Less
Fixed Linkage Reach - max 19.8 ft 6.04 m Less
Reach with Dangle Head on Telescopic Boom 27.0 ft 8.23 m Less
Reach with PF-48 Fixed Head on Fixed Linkage 23.3 ft 7.1 m Less
Telescopic Boom Lift Capacity, Gross - max reach 5071.0 lb 2300.0 kg Less
Telescopic Boom Reach - max 26.0 ft 7.93 m Less

Shipping Dimensions*

Height 136.0 in 3454.0 mm Less
Width 112.0 in 2840.0 mm Less
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