The Cat® FM558 excels in shovel logging with stability, comfort, and strong hydraulics. Cat forestry tools, VisionLink™ monitoring, and dealer support keep operations profitable.
| Engine Model | Cat C7.1 |
| Net Power – ISO 9249 | 298 hp |
| Engine Power – ISO 14396 | 302 hp |
| 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) |
| Engine Power – ISO 14396 (DIN) | 306 hp (metric) |
| Bore | 4.13 in |
| Stroke | 5.31 in |
| Displacement | 433.3 in³ |
| Biodiesel Capability | B20¹ |
| Emissions | Meets U.S. EPA Tier 4 Final, EU Stage V emission standards. |
| 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 2,200 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) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** 100% |
| Maximum Drawbar Pull | 78638 lbf |
| Maximum Travel Speed | 2.8 mile/h |
| Main System – Maximum Flow | 141 gpm |
| Maximum Pressure – Equipment | 5076 psi |
| Maximum Pressure – Equipment – Lift Mode | 5511 psi |
| Maximum Pressure – Travel | 5076 psi |
| Maximum Pressure – Swing | 3945 psi |
| Swing Speed | 7.4 r/min |
| Maximum Swing Torque | 113584 lbf·ft |
| General Forestry | 91490 lb |
| Note (1) | 22″ SEC Riser, High Wide undercarriage, 5.04mt CTWT, Reach Boom, R3.2 m (10’2″) Reach stick, 700mm (28″) double grouser shoes, 1.76 m³ (2.30 yd³) HD bucket. |
| Log Loader (U/U) | 98550 lb |
| Note (2) | 72″ REC Riser, High Wide undercarriage, Log Loader boom, 4.05 m (13’3″) Under/Under stick with live heel, 700mm (28″) double grouser shoes, no grapple. |
| Fuel Tank | 262 gal (US) |
| Cooling System | 10 gal (US) |
| Engine Oil | 7 gal (US) |
| Swing Drive | 4 gal (US) |
| Final Drive – Each | 3 gal (US) |
| Hydraulic System – Including Tank | 92 gal (US) |
| Hydraulic Tank | 49 gal (US) |
| DEF Tank | 11 gal (US) |
| Max Reach at Grapple Mount on Heel at Ground Level – Log Loader Under/Under | 39.3 ft |
| Max Reach at Stick Nose at Ground Level – General Forestry Road Builder | 35.3 ft |
| Note (1) | General Forestry |
| Length: General Forestry – Boom Stretched Out | 46.2 ft |
| Length: Log Loader – Boom Stretched Out | 51.6 ft |
| Track Gauge | 9.6 ft |
| Shipping Height – Tilted Cab | 11.9 ft |
| Track Length | 16.9 ft |
| Track Length to Center of Rollers | 13.5 ft |
| Tail Swing Radius | 11.6 ft |
| Transport Width | 12 ft |
| Counterweight Clearance | 4.9 ft |
| Handrail Height | 11.6 ft |
| Ground Clearance | 2.5 ft |
| 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 |
| Standard and optional equipment may vary. Consult your Cat dealer for details. |
| 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 Flash |
| Remote Troubleshoot |
| Cat Payload |
| Maintenance-free 1000 CCA batteries (x4) |
| Centralized electrical disconnect switch |
| LED chassis and left-side boom light (1,800 lumen) |
| Horn and travel alarm |
| Electric fuel priming pump |
| Three selectable modes: Power, Smart, Eco |
| Automatic engine speed control |
| Automatic engine idle shutdown |
| Up to 4600m (15,092 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 |
| Lockable disconnect switch |
| Service platforms with anti-skid plate and countersunk bolts |
| RH handrail and handhold |
| Signaling/warning horn |
| Ground-level secondary engine shutoff switch |
| Rearview camera |
| Operator Protective Guards |
| Side-entry service platform |
| Integrated vehicle health management system |
| Grouped location for engine oil and fuel filters |
| Scheduled Oil Sampling (S·O·S℠) ports |
| High Wide undercarriage |
| 216 mm (8.5") pitch Cat grease lubricated track chain with PPR3 positive pin retention |
| Catwalks |
| Tie down points |
| Counterweight fuel tank |
| Heavy-duty track rollers and frames |
| 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 |
| Standard and optional equipment may vary. Consult your Cat dealer for details. |
| 6.15 m (20'2") Reach boom |
| 6.8 m (22'4") Log Loader boom |
| 3.2 m (10'6") Reach stick |
| 4.05 m (13'3") Over/Under stick |
| 4.05 m (13'3") Under/Under stick |
| 4.35 m (14'3") Power Clam stick |
| Side entry with 559 mm (22") tilting riser |
| Rear entry with 1219 mm (48") tilting riser |
| Rear entry with 1829 mm (72") tilting riser |
| Cat Stick Steer |
| Auxiliary relay |
| Premium lighting – General Forestry |
| Premium lighting – Log Loader |
| Cold start package with block heater |
| Medium pressure circuit |
| Inspection lighting |
| Right-hand sideview camera |
| 5.0 mt (11,023 lb) counterweight fuel tank (optional for General Forestry only) |
| 700 mm (28") double and single grouser shoes |
