See the solution in real use and note how it behaves under normal conditions. In this video, we showcase the 4BT 3.9L diesel engine assembly specifically designed for excavators. You'll get a detailed walkthrough of its reinforced mechanical construction, power calibration options (100HP, 125HP, 150HP), and exclusive excavator features like side-mounted cooling and built-in hydraulic PTO. We demonstrate fitment compatibility with popular excavator models from Sany, Komatsu, Hitachi, and Caterpillar, and explain key differences between excavator, loader, and truck engine versions.