CAT ET Software Laptop Bundle with Panasonic Toughbook FZ-55
Choose the CAT ET laptop package that fits your work. Every package includes a refurbished Panasonic Toughbook FZ-55 MK1 with a one-year CAT ET software license installed on the supplied laptop and ready to use out of the box. CAT ET software is not offered as a standalone item on this listing.
Package options
- Laptop + CAT ET Software — $2,395: Laptop and software only. No diagnostic interface or cables are included.
- Laptop + CAT ET Software + Cat COMM3 — $3,690: Includes the laptop, CAT ET software, Cat COMM3 interface, and basic cables.
Important for CAT off-highway equipment: Cat COMM3 is required. Without a Cat COMM3, you cannot connect this package to CAT off-highway equipment.
Fulfillment: Please allow approximately one week before shipment. This is a preparation estimate, not a guaranteed delivery date.
Arrival damage: If the laptop arrives damaged, contact us within 7 days for assistance.
Included laptop
- Model: Panasonic Toughbook FZ-55 MK1
- Condition: Refurbished
- Display: 14-inch HD (1366 × 768), non-touch
- Processor: Intel Core i5-8365U, up to 4.1 GHz
- Memory: 32 GB RAM
- Storage: 1 TB SSD
- Connectivity: 4G LTE
- Camera: Webcam
- Operating system: Windows 11 Pro
Caterpillar Electronic Technician (CAT ET Software) is diagnostic software used to communicate with, diagnose, and service electronically controlled Caterpillar engines and machines. When connected to an ECM, a technician can diagnose existing and potential problems, configure the product, and obtain data for analysis.

CAT ET features
- Displays parameter status
- Displays active diagnostics
- Clear and view logged diagnostics
- Performs diagnostic tests
- Print reports and diagnostic results
- Perform calibrations
- Displays current totals information, including fuel consumption and operating hours
- Integration to help files
- Creates engine warranty reports
CAT ET can also be used for:
- Diagnostic tests
- Sensor calibrations
- Flash programming (dealer only)
- Trim files (dealer only)
- Parameter programming (as allowed by CAT)
- Copy configuration for ECM replacement
- Change ECM configurations (dealer only)
- Data logging
- Real-time graphs
- Snapshot recorder
- Print reports
Note
ECM reprogramming (such as horsepower changes or ECM flashing), EGR work, and certain particulate-filter code clearing can only be performed by a Caterpillar dealer.