FM528 GF/FM528 LL

    
• Bluetooth connectivity allows pairing mobile phone or other bluetooth device to the cab monitor and sound system.

    

• Pitch and roll indicator displays the machines fore and aft position and side to side position.

    

• Configuration setup for auxiliary is a breeze with assigning functions on the Cat® control handles such as radio mute, call answer, and wiper control.

Not all features are available in all regions. Please check with your local Cat dealer for specific offering availability in your area. Build Number: 07H

    
• The latest operator oriented User Interface (UI) has been designed to maximize uptime by allowing operators to easily reorder work tool lists and quickly create new work tool combinations makes it manageable for a single person to check and adjust for bucket wear. 

    

• VisionLink™ provides actionable data insights for all assets – regardless of fleet size or equipment manufacturer.* Review equipment data from your desktop or mobile device to maximize uptime and optimize assets. Equipment management features provide up-to-date asset tracking of your entire fleet. You can track asset location, operating hours, fuel level, health issues, and overall utilization. Monitor equipment health with fault codes, fluid analysis, and inspection due dates. It’s all about making informed, data-based decisions to help reduce operating costs. 

    

• Cat® Inspect is a mobile application that allows you to easily perform digital preventative maintenance (PM) checks, inspections, and daily walkarounds. Inspections can easily be integrated with other Cat data systems like VisionLink so you can keep a close eye on your fleet.

    

• Remote Troubleshoot is a mobile application that allows your Cat dealer to perform diagnostic testing on your connected machine remotely to help resolve issues quickly and with less downtime.

    

• Remote Flash is a mobile application that allows you to update onboard software without a technician being present, allowing you to initiate software updates when convenient, increasing your overall operating efficiency.

    

• The Cat PL161 attachment locator allows you to track attachments across all worksites, reduce the number of lost attachments, and plan for attachment maintenance and replacement. The work tool recognition** feature automatically adjusts machine settings based on the selected tool.

    

• * Data field availability can vary by equipment manufacturer.

    

• ** Recognition feature available on select excavator models. Consult your Cat dealer for details.

    
• The Cat C4.4 173 hp (129 kW) engine and electrohydraulic system help drive fuel reduction and enable high-performance responses within the system to optimize operations.

    

• This high-torque motor provides high power at low RPMs, minimizes downtime, reduces maintenance costs, and increases job site precision.

    

• The efficient engine and hydraulic system cooling E-Fans with reversing function help remove debris, improve engine efficiency, and accurately control temperatures.

    

• The e-fans provide greater coverage, so the air flows evenly over the radiator and charges the air cooler.

    

• Long-life fuel and hydraulic oil filters with extended service intervals work well with the FM528’s extended service and maintenance intervals.

    

• Shares common parts and services with Cat Next Generation Excavators, reducing downtime with more readily available parts.

    

• Support of a world-class dealer network backed by a range of flexible solutions, technology, tools, and more.

    
• Next Generation Certified Forestry ROPS side-entry cab is engineered for operator safety and features a wide door and a tilt-up armrest.

    

• 32mm (1.25”) polycarbonate front safety window and smaller cab pillars enhance jobsite and work task visibility.

    

• The dual HVAC system keeps operators comfortable in cold and warm weather.

    

• A wide heated and cooled air-suspension seat makes year-round work more pleasant.

    

• All controls are within easy reach to reduce twisting and turning and keep you focused on the work area.

    

• Cab risers — 165 mm (6.5″) fixed or 1219 mm (48”) hydraulic tilt — are available to meet your work needs.

    

• Stow your gear with in-cab storage beneath, behind the seat, and in the consoles.

    

• Use the standard radio’s USB ports and Bluetooth® technology to connect personal devices and make hands-free calls.

    
• Cat® continues to improve user interface functionality for operators of all skill levels. The touchscreen monitor is an easy-to-use operating tool that presents the jobsite dashboard with an intuitive format. 

    

• The Cat PL161 attachment locator is a Bluetooth device designed to let users know where their attachments are across all worksites, reduce the number of lost attachments, and plan for attachment maintenance and replacement. The PL161 integrates easily into VisionLink™ for full fleet management of machines and attachments from one smartphone or tablet dashboard to view location and tracking details.

    

• Start the engine with a push button or use a Bluetooth key fob or the unique Operator ID function.

    

• Navigate quickly on the optional high-resolution 203 mm (8 in) or 254 mm (10 in) touchscreen monitor.

    

• Make moving the excavator much easier with the optional Cat® Stick Steer. Push a button and use one hand to travel and turn instead of both hands or feet on levers or pedals.

    

• Not sure how a function works or how to maintain the machine? Always have the operator’s manual at your fingertips in the touchscreen monitor.

    

• Optional auxiliary relay powers on and turns off CB radios and other attachments without you taking your hands off the joysticks.

    
• A handy addition to any fleet, the FM528 is the first Cat Forest machine to offer a fixed or live heel and blade option for versatile application.

    

• This multi-configuration machine includes a processor, roadbuilder, log loader, and provides optional knuckle boom controls. It can go to work in the woods or the millyard to boost productivity and profitability.

    

• The optional narrow, high, long undercarriage allows easy transport and in-woods travel between worksites and improves productivity.

    

• General Forestry

    
1. The General Forestry model is ideal for road work, grappling, processing, and delimbing.

    

2. With a reach boom and quick coupler, you can equip the FM568 with a processor, bucket, thumb, mulcher, and other attachments to get work done quickly and efficiently.

    

3. A frontless option allows you to customize the machine to fit your applications.

    
• Log Loader

    
1. The log loader configuration is ideal for truck loading, Butt-n-Top loading, power clam applications, and millyard work.

    

2. An under-mounted heel cylinder provides maximum force for shovel logging with a Cat grapple. A variable displacement pump delivers high-flow rotating capability for heel and log grapples and Power Clam and Butt-n-Top grapples.

    

3. An overmounted heel cylinder provides maximum clearance to load trucks and increases lift height for millyard applications.

    

4. The optional fixed heel log loader with integrated drop nose stick effectively extends your reach from a stationary point, allowing the operator to lift logs without needing to move the machine.

    
• Rugged, reliable, simple-to-service Cat forestry grapples range in size from 1322 mm (52″) to 1524 mm (60″).

    

• Triple grouser shoes are available to provide high maneuverability while minimizing disturbance in soft, wet underfoot conditions.

    
• Boost productivity with proactive service reminders. The Integrated Vehicle Health Management system alerts the operator with step-by-step service guidance and the parts needed so you don’t experience unnecessary downtime.

    

• Using Cat® genuine oil and filters and doing typical  S∙O∙S^SM monitoring will extend the current service interval, giving you greater uptime to do more work.

    

• S·O·S ports simplify maintenance and allow for quick, easy extraction of fluid samples for analysis.

    

• The diesel particulate filter requires no maintenance.

    

• Fuel and engine oil filters are synchronized to be changed at 1,000 hours.

    

• The latest hydraulic oil filter provides high-quality filtration performance, anti-drain valves to keep oil clean when the filter is replaced, and the extended replacement interval offers efficiency and convenience.

    
• The cab meets applicable industry standards for ROPS/FOPS/OPG and protects the operator inside the cab.

    

• Access most routine maintenance points at ground level.

    

• The right-hand service platform design provides easy, safe, and quick access to the upper service platform; the service platform steps use an anti-skid punch plate to prevent slipping. Handrails are provided for easy access.

    

• 32mm (1.25”) polycarbonate safety front window and smaller cab pillars enhance jobsite and work task visibility.

    

• Standard rearview camera enhances jobsite visibility; right-hand-sideview camera is optional.

    

• The monitor’s slope and grade indicator tell you the machine’s position to help optimize its performance.

    

• A signaling/warning horn and travel alarm enhance jobsite safety.

    

• Add optional inspection lighting to illuminate the engine, pump, battery, and cooling compartments, making service work more accessible.

Tackle your jobs with a complete Cat® solution. Cat attachments are not just accessories – they are essential tools that define what your machine can do. When you pair a Cat excavator with Cat attachments, you unlock a fully integrated system built for performance, durability, and efficiency. Whether you are clearing land, breaking concrete, or compacting soil, the right attachment transforms your excavator into a powerful, multi-purpose tool ready for any challenge. Depending on your project or application, you could benefit from excavator attachments such as:

    
• Buckets: Handle everything from digging and grading to cleanup and debris removal with your excavator. Caterpillar® offers general duty, heavy duty, extreme duty, and severe duty buckets, as well as specialized designs for ditch cleaning, rock, and finishing work. Reinforced edges and wear-resistant materials ensure long-lasting performance in tough conditions.

    

• Pin Grabber: Offer fast, secure attachment changes and are compatible with a wide range of tools. Ideal for operators who need flexibility on the job site, they allow switching between buckets, hammers, and grapples. Features a redundant locking system to keep your attachments in place and protect them from damage.

    

• CW Quick Couplers: Rugged, wedge-style quick couplers built to increase the utilization of your excavator. Designed to fit your machine and application needs, Caterpillar® offers a series of CW couplers in mechanical and hydraulic versions. Ideal for contractors who prioritize a strong, simple locking system for frequent attachment changes.

    

• S-Type Couplers: A pin grabber-style dedicated coupler, S-Type Couplers feature a narrow, lightweight design for improved performance. They offer precision, flexibility, and are ideal for fleets needing consistent attachment interchangeability.

    

• Hydraulic Connecting S-Type (HCS) Couplers: HCS Couplers offer automatic hydraulic connection with the compact, low-profile design of the S-Type. With advanced functionality such as full hydraulic and electronic connection, hydromechanical attachments are connected and ready to operate in seconds.

    

• Performance Hammers: Built for high-demand applications, performance hammers deliver maximum impact energy and fast cycle times for breaking concrete, rock, and asphalt. Ideal for heavy-duty demolition, quarrying, and production environments where speed and power are critical.

    

• GC S Hammers: Simplified, silenced models designed for noise-sensitive environments. They maintain solid performance while reducing sound levels, making them ideal for urban job sites, residential areas, and regulated zones. Ideal for site prep, light demolition, foundry and quarry applications.

    

• Mulchers: Ideal for forestry and agriculture applications. Mulchers clear land and manage vegetation by shredding brush, trees, and undergrowth into fine mulch. Their high-speed rotors deliver fast, consistent results, with interchangeable teeth to suit different materials and desired final mulch size.

    

• Orange Peel Grapples: Built for scrap and bulk material handling, Orange Peel Grapples excel with irregular, heavy loads like metal, rock, and waste. Their hydraulic tines provide superior grip and penetration. High-capacity and continuous rotation are perfect for scrap yards and transfer stations. Caterpillar® offers these grapples with a choice of different shell designs and tine options suited to various applications.

Cat® attachments are engineered to maximize your excavator’s productivity, helping you get more work done with greater efficiency and confidence. Choosing the right attachment is not just about compatibility, it is about unlocking your machine’s full potential while avoiding equipment damage or safety risks. Connect with your Cat Dealer to find the optimal attachments for your specific machine and application needs.
​​​​​​
Not all attachments are available in all regions. Contact your Cat Dealer for details.
 

    
• The Cat® C4.4 engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.

    

• Cat 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)*** or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.

    

• Auto Engine Speed Control reduces unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.

    

• Extended maintenance intervals reduce downtime and decrease the amount of fluid and filters that are replaced over the machine’s life.

    

• Cat® VisionLink displays the CO2 emissions for monitored assets, calculated by fuel type for the Runtime Fuel Burned each day in a selected date range.

    

• Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.

*While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. 
**Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. 
***Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of  blends higher than 20% biodiesel, consult your Cat dealer).

NOTE

1. Standard and optional equipment may vary. Consult your Cat dealer for details.

CAB

1. ROPS Forestry cab with polycarbonate windows
2. 4-point harness seat belt
3. Heated and cooled seat with air-adjustable suspension
4. Integrated joysticks
5. Tilt-up left-side console
6. Bluetooth® integrated radio (including USB, aux port and microphone)
7. 12V DC outlets
8. Keyless push-to-start engine control
9. Automatic bi-level air conditioner
10. LED dome and floor lights
11. Windshield wiper and washer
12. Behind seat storage

CAT TECHNOLOGIES

1. VisionLink™
2. Remote Flash
3. Remote Troubleshoot

ELECTRICAL SYSTEM

1. Maintenance-free 1000 CCA batteries (x4)
2. Centralized electrical disconnect switch
3. 200-amp alternator
4. 24-volt electric starting
5. Pre-start monitoring system
6. Horn and travel alarm
7. Tool control software
8. Secondary engine shut off switch

ENGINE

1. Electric fuel priming pump
2. Three selectable modes: Power, Smart, Eco
3. Automatic engine speed control
4. Automatic engine idle shutdown
5. Up to 4600m (15,092 ft) altitude capability
6. 48° C (118° F) high-ambient cooling capacity
7. -32° C (-25° F) cold start capability
8. Hydraulic reverse fan
9. Two-stage fuel filter system
10. Double element air filter with integrated pre-cleaner

HYDRAULIC SYSTEM

1. Boom and stick regeneration circuits
2. Boom and stick drift reduction valve
3. Electronic main control valve
4. Automatic hydraulic oil warm up
5. Automatic swing parking brake
6. High performance hydraulic return filter
7. Automatic two speed travel
8. Bio hydraulic oil capability
9. Swing cushion valve
10. Tool control software
11. Tandem type electronic main pump
12. Fully pressurized hydraulic system

SAFETY AND SECURITY

1. Caterpillar One Key security system
2. Lockable service doors
3. Lockable fuel cap and hydraulic tank
4. Right-hand rail and hand hold
5. Signaling/warning horn
6. Ground-level secondary engine shutoff switch
7. Reaview camera
8. Hydraulic lock out lever

SERVICE AND MAINTENANCE

1. Side-entry service platform
2. Grouped location for engine oil and fuel filters
3. Ground level dipstick for engine oil
4. Scheduled Oil Sampling (S·O·S℠) ports

UNDERCARRIAGE AND STRUCTURES

1. Tie down points
2. Heavy-duty travel motor guards
3. Heavy-duty bottom guards
4. Full length track guiding guards
5. Heavy-duty recoil springs
6. Heavy-duty hydraulic swivel guard
7. Straddle mounted carrier rollers

NOTE

1. Standard and optional equipment may vary. Consult your Cat dealer for details.

BOOMS AND STICKS

1. 5.7 m (18’7″) Reach boom
2. 5.9 m (19’6″) Straight boom
3. 2.9 m (9’6″) Thumb-ready stick
4. 3.7 m (12’2″) Drop Nose stick
5. 3.5 m (11’6″) Under/Under stick
6. 3.8 m (12’6″) Over/Under stick
7. 5.8 m (19’2″) MH stick

CAB

1. Side entry with 165 mm (6.5″) fixed riser
2. Side entry 1219 mm (48″) tilting riser
3. High-resolution touchscreen monitor 203 mm (8″)
4. High-resolution touchscreen monitor 254 mm (10″)
5. CB radio mounts
6. Rear sunshade

ELECTRICAL SYSTEM

1. Premium lighting – General Forestry – 6 additional LED lights
2. Premium lighting – Log Loader – 10 additional LED lights

ENGINE

1. Cold start package with block heaters and ether assist

HYDRAULIC SYSTEM

1. Medium pressure circuit

SAFETY AND SECURITY

1. Storage tray in pump room
2. Right-hand sideview camera

UNDERCARRIAGE AND STRUCTURES

1. Severe Duty – Long undercarriage
2. High – Long undercarriage (with 7.5″ pitch)
3. Catwalks
4. 600 mm (24 in) Double grouser shoes, for High-LC (D5 type link)
5. 700 mm (28 in) Triple and Double grouser shoes, for High-LC (D5 type link)
6. 700 mm (28 in) Triple and Double grouser shoes, for SD-LC (326 track link)
7. 760 mm (30 in) Triple grouser shoes, for High-LC (D5 type link)
8. 2980 mm (9’9″) blade
9. 3170 mm (10’5″) blade