Put the Cat® FM558 to work and experience superior performance and extraordinary bottom-line results. In its size class, there’s no better machine for moving timber. The FM558 has advanced safety and comfort features to make your shovel logging, loading, roadbuilding, and processing work more productive and enjoyable.
Engine Model Cat C7.1
Net Power - ISO 9249 298 hp
Engine Power - ISO 14396 302 hp
Net Power - ISO 9249 (DIN) 303 hp (metric)
Biodiesel Capability B20¹
Bore 4.13in
Displacement 433.3r/min
Emissions Meets U.S. EPA Tier 4 Final, EU Stage V emission standards.
Engine Model Cat C7.1
Engine Power - ISO 14396 302hp
Engine Power - ISO 14396 (DIN) 306hp (metric)
Net Power - ISO 9249 298hp
Net Power - ISO 9249 (DIN) 303hp (metric)
Note (1) Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 1,800 rpm. Advertised power is tested per the specified standard in effect at time of
Note (2) ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO
Stroke 5.31in
Maximum Drawbar Pull 78638lbf
Maximum Travel Speed 2.8mile/h
Main System - Maximum Flow 142gal/min
Maximum Pressure - Equipment 5076psi
Maximum Pressure - Equipment - Lift Mode 5511psi
Maximum Pressure - Swing 3945psi
Maximum Pressure - Travel 5076psi
Maximum Swing Torque 113584lb/ft
Swing Speed 7.4r/min
General Forestry 91490lb
Log Loader (U/U) 98550lb
Cooling System 10gal (US)
DEF Tank 11gal (US)
Engine Oil 7gal (US)
Final Drive - Each 3gal (US)
Fuel Tank 262gal (US)
Hydraulic System - Including Tank 92gal (US)
Hydraulic Tank 49gal (US)
Swing Drive 4gal (US)
Max Reach at Grapple Mount on Heel at Ground Level - Log Loader Under/Under 472in
Max Reach at Stick Nose at Ground Level - General Forestry Road Builder 418in
Counterweight Clearance 60in
Ground Clearance 30in
Handrail Height 138in
Length: General Forestry - Boom Stretched Out 554in
Length: Log Loader - Boom Stretched Out 619in
Note (1) General Forestry
Shipping Height - Tilted Cab 148in
Tail Swing Radius 139in
Track Gauge 115in
Track Length 203in
Track Length to Center of Rollers 162in
Transport Width 144in
Note (1) The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 2.1 (22" Riser CAB)/2.2 (48"/72" Riser CAB) kg of refrigerant, which has a CO2 equivalent of 3.003
ROPS Forestry cab with polycarbonate windows
4-point harness seat belt
Heated and cooled seat with air-adjustable suspension
Integrated joysticks
Tilt-up left-side console (side-entry cab only)
High-resolution touchscreen monitor
Bluetooth integrated radio (including USB, aux port and microphone)
12V DC outlets
Keyless push-to-start engine control
Automatic bi-level air conditioner
LED dome and floor lights
Windshield wiper and washer
Behind seat storage
Retractable sunshade
VisionLink®
Remote Services capability
Maintenance-free 1000 CCA batteries (x4)
Centralized electrical disconnect switch
LED chassis, boom (GF), stick (LL) and cab lights
Electric fuel priming pump
Three selectable modes: Power, Smart, Eco
Automatic engine speed control
Automatic engine idle shutdown
Up to 4500m (14,764 ft) altitude capability
52° C (126° F) high-ambient cooling capacity
-32° C (-25° F) cold start capability
Hydraulic reverse fan
Two-stage fuel filter system
Double element air filter with integrated pre-cleaner
Boom and stick regeneration circuits
Boom and stick drift reduction valve
Electronic main control valve
Automatic hydraulic oil warmup
Automatic swing parking brake
High performance hydraulic return filter
Automatic two speed travel
Bio hydraulic oil capability
High torque swing drive
Swing cushion valve
Tool control software
Caterpillar One Key security system
Lockable service doors
Lockable external tool/storage box
Lockable fuel caps and hydraulic tank
Service platforms with anti-skid plate and countersunk bolts
RH handrail and handhold
Signaling/warning horn
Ground-level secondary engine shutoff switch
Rearview camera
Travel alarm
Side-entry service platform
Left/right-side fuel fill locations
Grouped location for engine oil and fuel filters
S·O·S sampling ports
High Wide undercarriage
Grease lubricated track with positive pin retention
Catwalks
Tie down points
Counterweight fuel tank
Heavy-duty track rollers
Heavy-duty travel motor guards
Heavy-duty bottom guards
Track guiding guards
High drawbar final drives
Heavy-duty recoil springs
Heavy-duty hydraulic swivel
Heavy-duty hydraulic swivel guard
6.15 m (20'2") Reach boom - General Forestry
6.08 m (22'4") boom - Log Loader
3.2 m (10'6") Reach stick
4.05 m (13'3") over/under stick
4.05 m (13'3") under/under
4.35 m (14'3") power clam
Rear entry
Side entry
559 mm (22") tilting riser
1219 mm (48") tilting riser
1829 mm (72") tilting riser
CB radio mounts
Cat Stick Steer
Auxiliary relay
Premium lighting - General Forestry - 6 additional LED lights
Premium lighting - Log Loader - 10 additional LED lights
Cold start package with block heater and ether assist
Medium pressure circuit
Easy lock cab tilting system (rear-entry cab only)
Cab riser light
Inspection lighting
Right-hand sideview camera
Swing alarm
Integrated vehicle health management system
850 mm (33") triple grouser shoes
700 mm (28") double and single grouser shoes
