5154115060 Original Engine Parts Fuel Pipe Asm

Part number 5154115060 is an original genuine Isuzu accessory, specifically designed for the high-pressure fuel system of engines. As shown in the figure, its unique curved shape and different connection structures at both ends are specially designed for compact layout in the engine compartment. This part is mainly suitable for Isuzu 6HK1 series diesel engines and is a key pipeline connecting the high-pressure common rail pipe and the fuel injector. Common construction machinery equipped with this engine include excavators of models such as Hitachi Construction Machinery ZX330, ZX360H-3G, EX330, etc.
 

This product is a high-pressure common rail fuel pipe, which is precision cold drawn from high-strength alloy steel and has a specific curved shape to accurately adapt to the engine space layout. One end is a threaded interface with a sealed conical surface, used for connecting common rail pipes; The other end is a precision spherical sealed end, which is connected and sealed to the fuel injector with a dedicated compression nut. Its core function is to stably and leak free deliver fuel from the common rail to the injectors under system pressures of up to 180MPa. The original parts ensure that their inner diameter, wall thickness, length, and burst pressure fully meet the engine design requirements. The interior is mirror polished to reduce flow resistance, and the exterior is usually treated with rust prevention to withstand fuel corrosion, high temperatures, and engine vibration.
 

Daily inspection should be conducted every 500 working hours, visually inspecting the pipe body for bulges, indentations, cracks, rust, and oil stains at the joints. Once any defects are discovered or the preventive replacement cycle is reached (usually 2 years or 4000 working hours), they must be replaced immediately, and it is recommended to replace the same set of oil pipes at the same time. The dismantled old pipe is strictly prohibited from being reused. It is necessary to use this original genuine part to ensure the safety of the engine fuel supply system.