The Cat® FM548 is simply the best choice in its size class for doing roadbuilding, processing, and log-loading work. With 275 HP and significant hydraulic flow and swing torque increases, the superior performance and exceptional operator comfort and safety of the FM548 will help you produce day in and day out.
Engine Model Cat C7.1
Net Power - ISO 9249 271 hp
Engine Power - ISO 14396:2002 275 hp
Net Power - ISO 9249 (DIN) 275 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 (DIN) 279hp (metric)
Engine Power - ISO 14396:2002 275hp
Net Power - ISO 9249 271hp
Net Power - ISO 9249 (DIN) 275hp (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 66319lbf
Maximum Travel Speed 3mile/h
Main System - Maximum Flow 132.6gal/min
Maximum Pressure - Equipment 5076psi
Maximum Pressure - Equipment - Lift Mode 5511psi
Maximum Pressure - Swing 4061psi
Maximum Pressure - Travel 5076psi
Maximum Swing Torque 100308lb/ft
Swing Speed 8.1r/min
General Forestry 83300lb
Log Loader (U/U) 89290lb
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)
Counterweight Clearance 59in
Ground Clearance 31in
Handrail Height 138in
Length: General Forestry - Boom Stretched Out 469in
Length: Log Loader - Boom Stretched Out 595in
Note (1) General Forestry
Shipping Height - Tilted Cab 138in
Tail Swing Radius 139in
Track Gauge 110in
Track Length 199in
Track Length to Center of Rollers 158in
Transport Width 139in
Max Reach at Grapple Mount on Heel at Ground Level - Log Loader Under/Under 450in
Max Reach at Stick Nose at Ground Level - General Forestry Road Builder 395in
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 as 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
115-amp alternator
24-volt electric starting
Horn and travel alarm
Pre-start monitoring system
Tool control software
Secondary engine shutoff switch
Cold start package with block heaters
Electric fuel priming pump
Three selectable modes: Power, Smart, Eco
Automatic engine speed control
Automatic engine idle shutdown
Up to 4600 m (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 disconnect switch
Lockable fuel cap and hydraulic tank
Service platforms with anti-skid plate and countersunk bolts
Right-hand rail and hand hold
Signaling/warning horn
Ground-level secondary engine shutoff switch
Rearview camera
Travel alarm
Side-entry to service platforms
Grouped location for engine oil and fuel filters
Scheduled Oil Sampling (S·O·S) ports
Integrated vehicle health management system
High Wide undercarriage
8.5" pitch Cat grease lubricated track chain with pressed fit pin
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
5.9 m (19'6") Reach boom - General Forestry
6.55 m (21'6") boom - Log Loader
2.95 m (9'6") Reach stick
3.71 m (12'2") Goose Neck stick
3.76 m (12'4") Under/Under stick
4.05 m (13'3") Over/Under stick
4.05 m (13'3") Power Clam stick
CB2 family bucket linkage
Side entry with 559 mm (22") tilting riser
Rear entry with 1219 mm (48") tilting riser
Rear entry with 1829 mm (72") tilting riser
Premium General Forestry lighting package
Premium Log Loader lighting package
Cold start package with block heaters and ether assist
Medium pressure circuit
Right-hand-sideview cameras
Inspection lighting
900 mm (36") triple grouser Tri Link shoes
850 mm (33") triple grouser shoes
700 mm (28") double or single grouser shoes
