The Fuel Supply System (I) for FAW trucks is a critical component ensuring smooth and efficient engine operation. It consists of various key parts, including the 1104030-775 Fuel inlet pipe assembly that connects the fuel transfer pump to the secondary filter, as well as the (104030-M800000) and (1104030-M80-0000W) Fuel inlet pipe assemblies that link the filter to the injection pump. Additionally, the 1104040-775 Fuel inlet pipe assembly facilitates the flow from the secondary filter to the high-pressure fuel pump, while the (1104040-M80-0000) assembly connects the fuel transfer pump to the filter. The system also includes the 1104050-775 Oil return pipe assembly and the (1104050-M80-0000) Lubricating oil pipe assembly for efficient oil circulation. Furthermore, the 1104070-775 and (1104070-M80-0000) lubricating oil pipe assemblies play a crucial role in maintaining proper lubrication for the engine components. The system is secured by the (1104036-73D) Hollow bolt for the fuel transfer pump inlet and outlet, along with the (1104084-81D) Link bolt M16X1.5 for additional support. With these high-quality components in place, the Fuel Supply System (I) of FAW trucks ensures reliable fuel delivery, oil circulation, and engine performance, enhancing the overall efficiency and longevity of the vehicle. Trust in the quality and functionality of these parts to keep your FAW truck running smoothly and efficiently on the road.