8983931481 Original Excavator High-pressure Oil Pump for Isuzu 6WG1 Engine

The high-pressure fuel pump with part number 8983931481 is the original core fuel supply component of the Isuzu 6WG1 series engine. This oil pump is mainly suitable for large excavators equipped with Isuzu 6WG1 engines, such as Hitachi's ZX470R-3F, ZX480LCK-3, ZX500LC-3, ZX500LC-3F and other models. In addition, it may also be applicable to construction machinery from other brands (such as Komatsu and Shengang) that use the same engine. As an original part, its part number code is in the format of "8-98313481-1" or "8983134811". When purchasing, it is necessary to check the complete number with and without bars to ensure accuracy.
 

This high-pressure fuel pump is the core of the electronically controlled high-pressure common rail fuel system, using advanced technology from DENSO or similar brands, responsible for pressurizing fuel to ultra-high pressure (usually exceeding 1800 bar) and accurately delivering it to each cylinder injector. Its internal core components include high-precision plunger pairs, electromagnetic control valves, and pressure sensors, ensuring high pressure, high precision, and fast response of fuel injection. The pump body is made of high-strength aluminum alloy or cast iron casting, and the key moving parts inside have undergone special heat treatment and precision grinding, with extremely high wear resistance and fatigue strength.

The maintenance core of this high-pressure fuel pump is to ensure that the fuel is exceptionally clean, regularly replace the filter, and undergo professional diagnosis. Fuel system maintenance: It is necessary to use high-quality low sulfur diesel that meets the standards, and strictly replace the diesel coarse and fine filter elements every 500 working hours or according to the maintenance manual requirements. This is the most critical measure to prevent wear and jamming of precision components. Professional diagnosis and maintenance: The high-pressure oil pump belongs to a high-precision assembly, and non professionals are strictly prohibited from disassembling it.