558 Forest Machine

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.


Engine Model Cat C7.1
Net Flywheel Power 239HP
Gross Power 239HP
Displacement 428in³
Engine Speed - Operation 1750r/min
Engine Speed - Travel 1800r/min
Gross Power at 2,200 rpm 239HP
Number of Cylinders 6

Service Refill Capacities

Cooling System 7.9gal (US)
Swing Drive 2.9gal (US)
Hydraulic Tank 46.2gal (US)
Final Drive - Each 2.9gal (US)
Hydraulic System - Total 81.9gal (US)
Fuel Tank - CWT 261.4gal (US)
Engine Crankcase 6.3gal (US)
DEF Tank 12.2gal (US)


Estimated Operating Weight without Attachment: General Forestry (Reach) 85239lb

Hydraulic System

Auxiliary Pump - Reach with Rotate: Pump Drive Gear Ratio 1.28:1
Auxiliary Pump - Reach with Rotate: Maximum Flow 37.2gal/min
Main Pumps - Maximum Flow - Both Pumps 126.8gal/min
Maximum System Pressure - Heavy Lift Mode 5511psi
Maximum System Pressure - Travel 5076psi
Main Pumps - Maximum Flow - Per Pump 63.4gal/min
Auxiliary Pump - Reach with Rotate: Maximum Pressure 1499psi
Maximum System Pressure - Swing 4641psi
Maximum System Pressure - Implements 5076psi

Operating Specifications

Maximum Speed - Turtle 1.5mile/h
Maximum Swing Speed (GF) 7.5r/min
Swing Torque (GF) 74494ft·lbf
Maximum Speed - Rabbit 2.3mile/h
Maximum Drawbar Pull 72164lbf


Undercarriage Pitch 8.5in
Track Length 199.7in
Track Gauge 115in
Ground Clearance 29.5in

Dimensions - General Forestry - Boom Stretched Out

Ground Clearance 29.5in
Width - With 700 mm (28 in) Shoes 142.6in
Overall Length (Reach) 499.2in
Track Length 199.7in
Track Gauge 115in
Tail Swing Radius 143.8in
Boom Height 146.5in
Height of Tilted Side Entry Cab 137.7in
Overall Height 164.5in
Distance Between Idler and Sprocket Centerline 158.2in

Standard Equipment

Optional Equipment