8975390870 Original 6WG1 Engine Parts No. 5 Fuel Injection Pipe

Part number 8975390870 (also written as 8-9753390877-0) is the original high-pressure fuel injection pipe (high-pressure fuel pipe) provided by Isuzu for the 6WG1 series diesel engine. This component is a key part of the engine's high-pressure common rail fuel system, responsible for delivering high-pressure fuel from the common rail to the injectors. Its universal model is this part number, mainly suitable for construction machinery equipment equipped with Isuzu 6WG1 engine, such as Hitachi ZX870-5G, ZX450-3, ZX470H-3, ZX500LC-3 and other models of excavators. As a precision component of the original factory, its length, specifications of the two end joints, inner diameter, and pressure resistance level are fully matched with the fuel pipeline layout and high-pressure working requirements of the engine

This product is a steel high-pressure fuel pipe. Its core structure consists of seamless steel pipes inside, wrapped with oil resistant and heat-resistant woven layers or sheaths outside, and equipped with precision machined metal joints (usually flanges or threaded connections) at both ends with original sealing gaskets. As an original component, its burst pressure is much higher than the working pressure, able to withstand fuel pressures of up to 2000 bar or more in common rail systems, and has good anti vibration fatigue performance. Its function is to ensure stable pressure and no leakage of high-pressure fuel during the delivery process from the common rail to the injectors.

Inspection and replacement: Every 500 working hours or during daily inspections, visually inspect this oil pipe for surface oil stains, wear, deformation, or loose joints. Once any signs of leakage, bulging of the pipe body, or damage to the joints are found, they must be replaced immediately. This high-pressure oil pipe is a safety critical component and is not recommended for reuse. Attention: Before disassembling the old fuel pipe, be sure to release the fuel system pressure first; When installing new pipes, ensure that their direction is smooth and avoid interference or friction with adjacent components; When storing, it is necessary to protect the joint threads and sealing surfaces to avoid collision. This oil pipe is the core component that ensures normal combustion and safe operation of the engine. When replacing it, it is necessary to use the correct high-pressure fuel injection pipe (8975390870)