568 Forest Machine

Performance and availability describe the Cat® 558 LL. Purpose built for loading in the forest or millyard, it features extreme-duty component frames that can handle the machine’s powerful engine and hydraulics systems ensuring productivity, durability and lower operating costs. Options are available to fit the 538 to your needs.


Engine Model Cat C9.3
Net Flywheel Power 291HP
Gross Power 319HP
Bore 4.53in
Stroke 5.87in
Displacement 567.5in³
Rated Power 296HP
Rated Speed 1800r/min
Maximum Torque 1051.7ft-lb
Number of Cylinders 6


Log Loader (U/U) 106128lb
Log Loader (O/U) 106479lb
General Forestry 95204lb

Service Refill Capacities

Cooling System 14.8gal (US)
Engine Oil 8.1gal (US)
Hydraulic Tank 46.2gal (US)
Final Drive - Each 2.1gal (US)
Fuel Tank Capacity - Main 163.8gal (US)
Swing Drive - Log Loader 2x 5.3gal (US)
Fuel Tank Capacity - Total 317gal (US)
Swing Drive - General Forestry 5gal (US)
Fuel Tank Capacity - RF 153.2gal (US)
Hydraulic System - Total 100.4gal (US)


Brakes ISO 10265:1998 ISO 11512:1995

Hydraulic System

Maximum Pressure - Implements 5076psi
Pilot System - Maximum Flow 6.87gal/min
Pilot System - Maximum Pressure 595psi
Log Loader - Boom Cylinder - Stroke 52.8in
Log Loader - Bottom Heel Cylinder - Bore 5.9in
Maximum Pressure - Swing - Single 4061psi
Log Loader - Stick Cylinder - Bore 7.1in
Log Loader - Stick Cylinder - Stroke 65.4in
Log Loader - Top Heel Cylinder - Bore 6.3in
General Forestry - Stick Cylinder - Stroke 68.4in
Main Pump System - Maximum Flow (2x) 76.3gal/min
Maximum Pressure - Swing - Dual 4550psi
General Forestry - Bucket Cylinder - Bore 5.9in
Log Loader - Boom Cylinder - Bore 6.7in
Log Loader - Top Heel Cylinder - Stroke 57.7in
General Forestry - Bucket Cylinder - Stroke 45.3in
General Forestry - Stick Cylinder - Bore 6.7in
Log Loader - Bottom Heel Cylinder - Stroke 45.5in
General Forestry - Boom Cylinder - Bore 5.9in
Auxiliary Pump - Maximum Pressure - Factory Setting 1500psi
Auxiliary Pump - Maximum Flow - Capacity 28.5gal/min
General Forestry - Boom Cylinder - Stroke 56.7in
Auxiliary Pump - Maximum Pressure - Capacity 3626psi
Auxiliary Pump - Maximum Flow - Factory Setting 13.5gal/min


Maximum Drawbar Pull 71264lb
Maximum Travel Speed 3mile/h

Operating Specifications

Swing Torque - General Forestry 84024ft-lb
Swing Torque - Log Loader 109560ft-lb
Maximum Swing Speed - General Forestry 10r/min
Maximum Drawbar Pull 71264lb
Maximum Swing Speed - Log Loader 6.3r/min
Operator Height from Ground (eye level) - General Forestry Cab 0.48 m (18 in) Riser 135in
Maximum Speed High Range 3mile/h
Operator Height from Ground (eye level) - Log Loader Cab 1.2 m (48 in) Riser 165in


Number of Track Rollers - Each Side 10
Number of Carrier Rollers - Each Side 2
Number of Shoes - Each Side 52


Track Length 212in
Track Gauge 115in
Ground Clearance 30in
Undercarriage Pitch 8.5in
Undercarriage Size 345HD

Standard Equipment

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Power Train
    • Cat® C9.3 engine
    • Meets U.S. EPA Tier 4 Interim emissions standards
    • Bio Diesel capable
    • 2300 m (7,500 ft) altitude capability
    • Electric priming fuel pump
    • 2×4 micron main filters and 1×10 micron primary filter in fuel line
    • 24-volt electric starting
    • Air intake heater
    • Automatic engine speed control with one touch low idle
    • Water separator in fuel line
    • Two speed auto-shift travel
    • Easy clean cooling system with full screens
    • Muffler
    • Flexxaire auto reversing fan
    • High ambient cooling capacity, 48° C (118° F)
    • Side by side cores
    • Starting aid cold weather starting package with two additional batteries, HD starter, ether and block heater
  • Hydraulic System
    • Regeneration circuit for boom and stick
    • Reverse swing dampening valve
    • Automatic swing parking brake
    • High performance hydraulic return filter
    • Capability of installing HP stackable valve and medium and QC valve
    • Standard auxiliary pump adjustable to 108 L/min (28.5 gal/min)
    • Capability of installing boom lowering control device and stick lowering check valve
    • Capability of installing Cat Bio hydraulic oil
  • Undercarriage
    • Straddle mounted carrier rollers
    • Heavy duty track motor guard
    • Heavy duty track rollers (10 per side)
    • Heavy duty recoil mechanism
    • 345 HD, GLT4 Track
    • Idler track guiding guards
    • Full length track shoe support
    • GFT80 high drawbar FD
    • Towing eye on base frame
  • Electrical
    • 80 ampere alternator
    • 4 front working lights cab top mounted
    • 1 left side working light
    • 2 right front working lights
    • 2 riser mounted lights
    • 1 rear working light
    • Horn
    • Pre-start monitoring system (engine oil, coolant hydraulic oil)
  • Operator Environment
    • Purpose built forestry cab with scratch resistant polycarbonate windows, ISO 8084 and SAE 1084 certified OPS, ISO 8083 and SAE J231 certified FOPS, and SAE J1356 certified FOGS, OR-OSHA code 437-0775 TOPS and WCB G602/G603/G604/G608
    • ROPS: ISO 3471:1997 Table 1, Section 1
    • Seat KAP 527P, air suspension, heated seat, retractable seatbelt and headrest
    • Integrated seat, console and joystick type controls
    • Language display monitor with gauges, Warning information, filter/fluid change information, machine condition, error code and tool mode setting information, start up level check for hydraulic oil and engine coolant
    • Full time clock on monitor (2 weeks)
    • Seat mounted joystick with extra functions for grapple
    • Fixed polycarbonate skylight with retractable sun shade, meeting SAE J1084
    • Interior lighting
    • Lower and upper windshield wipers and washer
    • Positive filtered ventilation, pressurized cab with bi-level air conditioner, heater and defroster with manual control
    • Forced air fan
    • Behind seat storage tray with tie down points
    • 2 CB radio mounts
    • 1 fire extinguisher mount
    • 1 attachment computer control mount
    • Secondary roof exit openable from inside and outside
    • 2 coat hooks
    • Ashtray with lighter
    • Literature holder
    • Cup holder
    • Neutral lever (lockout) for all controls
    • Travel control pedals with removable hand levers
    • Washable floor mat
    • Radio/CD player (12V)
    • 1 converter/2 sockets - 12V-10A power supply
  • Fluids
    • Antifreeze
    • Includes 50% concentration with protection of -34° C (-30° F)
  • Other Standard Equipment
    • Heavy duty upper frame with catwalks
    • Heavy duty bottom guard
    • Heavy duty side doors
    • Core hydraulic lines and controls with standard main valves on upper structures
    • Door and cover locks with Cat one key security system
    • Automatic swing parking brake
    • Fully pressurized hydraulic system
    • Fine swing control travel alarm
    • Counterweight with lifting eye
    • Right front corner guard
    • Right front corner fuel tank and standard fuel tank
    • 321SR Product Link

Optional Equipment

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Booms, Sticks And Linkages
    • Front Linkage
    • Grapples
    • Heels
  • Hydraulics
    • Thumb control
  • Line Groups
    • Boom Lines
    • Stick Lines
  • Other Attachments
    • Straight travel pedal
    • Auxiliary drive
    • International - ISO films
  • Fluids
    • Antifreeze
  • Field Installed Attachments
    • Kit, AEM cab installation
    • Kit, Butt-N-Top installation
  • Packing
    • Domestic
    • Miscellaneous
    • Order Change Charges