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Engine ModelCat C9.3
Net Flywheel Power291 HP (217 kW)
Gross Power319 HP (238 kW)
Bore4.53 in (115 mm)
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 ModelCat C9.3
Net Flywheel Power291 HP (217 kW)
Gross Power319 HP (238 kW)
Bore4.53 in (115 mm)
Stroke5.87 in (149 mm)
Displacement567.5 in³ (9.3 l)
Log Loader (U/U)106128 lb (48139 kg)
Log Loader (O/U)106479 lb (48298 kg)
Cooling System14.8 gal (US) (56 l)
Engine Oil8.1 gal (US) (30.5 l)
Hydraulic Tank46.2 gal (US) (175 l)
Final Drive - Each2.1 gal (US) (8 l)
BrakesISO 10265:1998 ISO 11512:1995
Maximum Pressure - Implements5076 psi (35000 kPa)
Pilot System - Maximum Flow6.87 gal/min (26 l/min)
Pilot System - Maximum Pressure595 psi (4100 kPa)
Maximum Drawbar Pull71264 lb (317 kN)
Number of Carrier Rollers - Each Side2
Number of Shoes - Each Side52
Auxiliary Pump - Maximum Pressure - Capacity3626 psi (25000 kPa)
Number of Track Rollers - Each Side10
Maximum Travel Speed3 mile/h (4.8 km/h)
General Forestry - Boom Cylinder - Stroke56.7 in (1440 mm)
Auxiliary Pump - Maximum Flow - Factory Setting13.5 gal/min (51 l/min)
Auxiliary Pump - Maximum Flow - Capacity28.5 gal/min (108 l/min)
Auxiliary Pump - Maximum Pressure - Factory Setting1500 psi (10350 kPa)
Swing Torque - Log Loader109560 ft-lb (148.5 N·m)
Maximum Swing Speed - General Forestry10 r/min (10 r/min)
Maximum Drawbar Pull71264 lb (317 kN)
Swing Torque - General Forestry84024 ft-lb (148.5 N·m)
Log Loader - Bottom Heel Cylinder - Stroke45.5 in (1155 mm)
Maximum Swing Speed - Log Loader6.3 r/min (6.3 r/min)
Operator Height from Ground (eye level) - General Forestry Cab 0.48 m (18 in) Riser135 in (3.4 m)
Maximum Speed High Range3 mile/h (4.8 km/h)
Operator Height from Ground (eye level) - Log Loader Cab 1.2 m (48 in) Riser165 in (4.2 m)
Track Length212 in (5390 mm)
Track Gauge115 in (2920 mm)
Ground Clearance30 in (760 mm)
Undercarriage Pitch8.5 in (215.9 mm)
General Forestry - Boom Cylinder - Bore5.9 in (150 mm)
Log Loader - Top Heel Cylinder - Bore6.3 in (160 mm)
General Forestry - Stick Cylinder - Bore6.7 in (170 mm)
Hydraulic System - Total100.4 gal (US) (380 l)
Rated Power296 HP (221 kW)
Rated Speed1800 r/min (1800 r/min)
Maximum Torque1051.7 ft-lb (1426 N·m)
Number of Cylinders6
General Forestry95204 lb (43184 kg)
Fuel Tank Capacity - Main163.8 gal (US) (620 l)
Swing Drive - Log Loader 2x5.3 gal (US) (20 l)
Fuel Tank Capacity - Total317 gal (US) (1200 l)
Swing Drive - General Forestry5 gal (US) (19 l)
Fuel Tank Capacity - RF153.2 gal (US) (580 l)
General Forestry - Bucket Cylinder - Stroke45.3 in (1151 mm)
Log Loader - Boom Cylinder - Stroke52.8 in (1340 mm)
Log Loader - Bottom Heel Cylinder - Bore5.9 in (150 mm)
Maximum Pressure - Swing - Single4061 psi (28000 kPa)
Log Loader - Stick Cylinder - Bore7.1 in (180 mm)
Log Loader - Stick Cylinder - Stroke65.4 in (1661 mm)
General Forestry - Stick Cylinder - Stroke68.4 in (1738 mm)
Main Pump System - Maximum Flow (2x)76.3 gal/min (289 l/min)
Maximum Pressure - Swing - Dual4550 psi (31400 kPa)
General Forestry - Bucket Cylinder - Bore5.9 in (150 mm)
Log Loader - Boom Cylinder - Bore6.7 in (170 mm)
Log Loader - Top Heel Cylinder - Stroke57.7 in (1465 mm)
Undercarriage Size345HD

Benefits and Features

  • Cat C9.3 engine delivers more horsepower using less fuel and meets current Tier 4 Interim emissions standards.
  • Isochronous speed control to maintain a constant speed - regardless of load - to improve fuel economy.
  • Three power modes are offered: high power, standard power, and economy power.
  • Offers the flexibility of running on either ultra‑low-sulfur diesel (ULSD) fuel with 15 ppm of sulfur or less or bio diesel (B20) fuel blended with ULSD.
  • Equipped with one-touch idle to reduce engine speed quickly and conserving fuel.

  • Efficient hydraulic horsepower is a key advantage to Cat Forest Machines.
  • More than just the engine power under the hood.
  • Hydraulic horsepower for the 568 increased from the previous series' output due to pump and other system improvements, meaning you move more material in less time.
  • A high-pressure system tackles the toughest of work in short order. A new one-piece, cast-block, back-to-back main control valve features resized and reshaped oil passages for improved efficiency and serviceability; stackable auxiliary valve attachments mount on top of the main valve, allowing auxiliary hydraulic lines and valve configurations to be simplified for greater reliability.
  • Return filter is a capsule design with a cartridge inside. Unlike many competitors, the Cat cartridge features a handle to help remove and change without oil spillage or contamination. A sensor attached to the filter warns the operator if it is plugging or exceeds a certain pressure level.
  • The swing priority circuit uses a new electric valve that's operated by the machine's improved Electronic Control Module (ECM) for more finely tuned control for more productive material loading.
  • A new electric boom regeneration valve minimizes pump flow when the boom lowers, improving fuel economy. It is optimized for any dial speed setting being used by the operator, which aids controllability and enhances component durability.
  • A Stick Regeneration Circuit regenerates the flow of oil from the rod end of the stick cylinder to the head end of the stick cylinder during low-load, stick-in operation, saving energy and expense.

  • New seat options include air suspension, heated standard, and heated and air-cooled option. Each seat includes a reclining back, upper and lower seat slide adjustments, and height and tilt angle adjustments to meet operator preferences.
  • Right and left joystick consoles can be adjusted to meet the operator's preference, enhancing comfort and productivity.
  • One-touch idle reduces engine speed saving fuel; touch control button again or move the joystick and the machine returns to normal operating level.
  • Optional heavy-lift mode increases machine system pressure to improve lift. Heavy lift mode also reduces engine speed and pump flow in order to improve controllability.
  • A new LCD (Liquid Crystal Display) monitor is 40% larger and offers higher resolution for better visibility.
  • Updated climate control system provides comfortable working conditions.

  • The upper frame includes new reinforced mountings to support the Roll-Over Protective Structure (ROPS) cab.
  • Longer undercarriage system provides added stability in the most demanding applications.
  • Heavy-duty track rollers, and carrier rollers, press-fit pin master joints, and enhanced track shoe bolts improve durability and reduce the risk of machine downtime.
  • New full-length guiding guard maintains track alignment and improves performance and undercarriage life.
  • A redesigned motor housing prevents mud packing and debris buildup around seals.

  • General Forestry and Log Loader booms and sticks are available. Each is built with internal baffle plates for added durability, quality and reliability. Large box-section structures with thick, multi-plate fabrications, castings, and forgings are used in high-stress areas to improve durability.
  • Two General Forestry, two Log Loader boom and stick, and three heel options available to match a variety of forestry applications. There is also a DB-Family Bucket Linkage available for the General Forestry configurations.
  • An extensive range of tools can be fit including grapples, buckets and thumbs. Each is designed to optimize the versatility and performance of your machine.
  • A complete line of shovel and loading grapples are available, including 52", 55" and 60" sizes to meet a range of applications.
  • Quick couplers allow one person to change work tools in seconds for maximum performance and flexibility on a job site. One machine can move rapidly from task to task, and a fleet of similarly equipped machines can share a common work tool inventory.

  • The 568 features unique electric boom and stick regeneration valves. The valves use gravity during typical “boom down” or “stick in” operations to regenerate flow of oil from the head end of the cylinder to the rod end of the cylinder instead of sending it all the way back to the hydraulic tank. This distinct Cat solution increases efficiency and reduces cycle times and pressure loss for higher productivity and lower fuel costs.
  • A high pressure hydraulic system as standard. It is a one-piece, cast-block, back-to-back control valve, improving efficiency and serviceability. Auxiliary valves are stackable and mounted on top of the main valve, simplifying and leading to greater reliability. Fuel consumption is reduced by re-sizing and shaping of the oil passages inside the new valve.
  • Cat Product Link* technology is a deeply integrated machine monitoring system designed to help customers improve their overall fleet management. Events and diagnostic codes as well as hours, fuel consumption, idle time, machine location, and other data are transmitted to a secure, web-based application called VisionLink™, which uses powerful tools to communicate to users and dealers. *Product Link licensing is not available in all areas. Please consult your Cat dealer for availability.

  • The 568 accommodates servicing most maintenance items from the safety and comfort of ground level.
  • Wider, taller service doors feature sturdier hinges and latches, and a new slotted-hole vent design preventing debris entry. A new one-piece hood provides easier access to the engine and cooling compartments along with a new hood screen design to prevent debris entry.
  • The radiator, pump and air cleaner compartments provide easy access to major components. When an air cleaner plugs, a warning is displayed on the in-cab monitor.
  • The electric priming pump is mounted on the primary filter base and is more reliable and easier to service than traditional hand-priming pumps.
  • The engine oil check gauge is situated in front of the engine compartment and is easy to remove.
  • The engine oil filter is located in the pump compartment for easy access.

Standard Equipment

  • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • 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
  • 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
  • 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
  • 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)
  • 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
  • Antifreeze
  • Includes 50% concentration with protection of -34° C (-30° F)
  • 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

  • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Front Linkage
  • Grapples
  • Heels
  • Thumb control
  • Boom Lines
  • Stick Lines
  • Straight travel pedal
  • Auxiliary drive
  • International - ISO films
  • Antifreeze
  • Kit, AEM cab installation
  • Kit, Butt-N-Top installation
  • Domestic
  • Miscellaneous
  • Order Change Charges