16/09/2026
🔧 CAT ET4 – Professional Caterpillar Diagnostic Tool
Working with Caterpillar excavators, loaders, bulldozers, trucks, generators or other heavy equipment? The CAT ET4 is designed to help technicians connect with CAT electronic control systems for professional diagnostics and maintenance.
With CAT ET software, you can read and clear fault codes, monitor real-time parameters, check ECM information, perform diagnostic tests and calibrations, and access various maintenance functions.
✅ CAT heavy equipment diagnostics
✅ Read & clear fault codes
✅ Real-time data monitoring
✅ ECM information & configuration
✅ Diagnostic tests & calibrations
✅ Suitable for construction, mining, agricultural and other CAT equipment
✅ USB communication with PC
✅ Factory direct supply from China
Whether you are a diesel mechanic, repair shop, equipment owner or distributor, ET4 can be a practical addition to your CAT diagnostic equipment.
💰 Competitive factory price
🌎 Worldwide shipping by DHL / FedEx / UPS
📦 Stable factory supply
📲 WhatsApp: +86 186 9258 2468
Send us your CAT machine model or part number and we can help you confirm compatibility before ordering.