Forest Machines 558

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Key Specs

Engine Model
Cat C7.1
Cat C7.1
Net Flywheel Power
239 HP
178 kW
Gross Power
239 HP
178 kW



Performance and availability describe the Cat® 558 Forest Machine. Purpose built, 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 specific forestry tasks.


Up To 35% Higher swing torque

Increased swing torque allows operator to shovel log or load / unload trucks more efficiently, increasing overall machine production.

Up To 12% More cooling capacity

Extended component life through new cooling package that has coarser fin spacing for improved debris flow through and serviceability.

Up To 12% Less fuel consumption

Power and hydraulics optimized for peak productivity and delivering maximum fuel efficiency.

Product Specifications for 558

Engine Model Cat C7.1 Cat C7.1
Net Flywheel Power 239 HP 178 kW
Gross Power 239 HP 178 kW
Displacement 428 in³ 7.01 l
Engine Speed - Operation 1750 r/min 1750 r/min
Engine Speed - Travel 1800 r/min 1800 r/min
Gross Power at 2,200 rpm 239 HP 178 kW
Number of Cylinders 6 6
Estimated Operating Weight without Attachment: General Forestry (Reach) 85239 lb 38664 kg
Cooling System 7.9 gal (US) 30 l
Swing Drive 2.9 gal (US) 11 l
Hydraulic Tank 46.2 gal (US) 175 l
Final Drive - Each 2.9 gal (US) 11 l
Hydraulic System - Total 81.9 gal (US) 310 l
Fuel Tank - CWT 261.4 gal (US) 989.3 l
Engine Crankcase 6.3 gal (US) 24 l
DEF Tank 12.2 gal (US) 46 l
Auxiliary Pump - Reach with Rotate: Pump Drive Gear Ratio 1.28:1 1.28:1
Auxiliary Pump - Reach with Rotate: Maximum Flow 37.2 gal/min 141 l/min
Main Pumps - Maximum Flow - Both Pumps 126.8 gal/min 480 l/min
Maximum System Pressure - Heavy Lift Mode 5511 psi 38000 kPa
Maximum System Pressure - Travel 5076 psi 35000 kPa
Main Pumps - Maximum Flow - Per Pump 63.4 gal/min 240 l/min
Auxiliary Pump - Reach with Rotate: Maximum Pressure 1499 psi 10335 kPa
Maximum System Pressure - Swing 4641 psi 32000 kPa
Maximum System Pressure - Implements 5076 psi 35000 kPa
Maximum Speed - Turtle 1.5 mile/h 2.4 km/h
Maximum Swing Speed (GF) 7.5 r/min 7.5 r/min
Swing Torque (GF) 74494 ft·lbf 101 kN·m
Maximum Speed - Rabbit 2.3 mile/h 3.7 km/h
Maximum Drawbar Pull 72164 lbf 321 kN
Undercarriage Pitch 8.5 in 215.9 mm
Track Length 199.7 in 5072 mm
Track Gauge 115 in 2921 mm
Ground Clearance 29.5 in 749 mm
Ground Clearance 29.5 in 749 mm
Width - With 700 mm (28 in) Shoes 142.6 in 3621 mm
Overall Length (Reach) 499.2 in 12680 mm
Track Length 199.7 in 5072 mm
Track Gauge 115 in 2921 mm
Tail Swing Radius 143.8 in 3653 mm
Boom Height 146.5 in 3720 mm
Height of Tilted Side Entry Cab 137.7 in 3498 mm
Overall Height 164.5 in 4178 mm
Distance Between Idler and Sprocket Centerline 158.2 in 4019 mm

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