8981759510 Original Isuzu 6BG1 fuel injection pump for Hitachi ZX210LC-5G excavator.

Part number 8-98175951-0 is an in-line plunger high-pressure fuel pump dedicated to Isuzu 6BG1 (including 6BG1T/TC) engines, compatible with Hitachi ZX210LC-5G/ZX200-5G/ZX210-5G excavators, corresponding to original alternative part numbers 101605-0390 and 115603-3950. With a maximum fuel supply pressure of up to 95MPa and a single-cylinder independent fuel supply design, its rated fuel supply is precisely matched to the 4.3L displacement 6-cylinder power of the 6BG1 engine, ensuring efficient power output of the rated power 110kW/2100rpm and maximum torque 502N·m/1800rpm, and serving as a core component for stable power and controllable fuel consumption of the entire machine.

The pump body is integrally cast from high-strength cast iron, the plunger pair is made of wear-resistant alloy treated with vacuum quenching, and the delivery valve seat is made of high-hardness stainless steel, featuring excellent high-pressure resistance and wear resistance. It has a built-in precision governor and fuel feed pump, combined with a two-stage fuel filtration structure, which effectively prevents impurities from entering the pump body and is suitable for operating environments from -30°C to 50°C. With a trouble-free service life of more than 8,000 hours under normal maintenance, it can maintain stable fuel supply pressure without failures such as leakage and jamming under harsh working conditions such as heavy load, frequent starts and stops, and dust, ensuring full combustion of the engine and reducing harmful gas emissions.

It strictly matches the cylinder block installation interface and fuel system parameters of the 6BG1 engine, using original special gaskets and fixing bolts. The installation torque is operated according to the standard of 28-32N·m. After installation, fuel supply timing calibration and air release operation are required. With the help of special tools, the assembly replacement can be completed in 4-5 hours, which greatly shortens the downtime. Its stable fuel supply can increase the engine's combustion efficiency by more than 10%, reduce fuel consumption by 7%-9%, and at the same time reduce the engine's mechanical load, extend the service life of core components such as cylinder liners and pistons, lower the overall comprehensive maintenance cost of the whole machine, and improve the operational economy and reliability of the equipment.