1153004364 Isuzu 6WG1 original fuel injector for Hitachi ZX870 excavator.

Part number 1-15300436-4 is an electronically controlled common rail fuel injector dedicated to Isuzu 6WG1 engines, compatible with Hitachi ZX450-3/ZX870-3 excavators, corresponding to Bosch original codes 095000-4364/095000-6304. With a single-hole high-pressure injection design, it operates at a maximum pressure of 180MPa, and its rated injection volume is precisely matched to the 6WG1 engine, ensuring efficient power output of the 15.68L displacement 6-cylinder engine, and serving as a key component for low fuel consumption and low emissions of the entire machine.

It adopts a high-strength alloy needle valve and wear-resistant valve seat, vacuum-quenched for high-pressure resistance and wear resistance. The shell is made of forged alloy steel, and the sealing structure uses a multi-layer composite sealing ring, suitable for working conditions from -30°C to 50°C, with a trouble-free service life of more than 10,000 hours. It features fast injection response and uniform atomization, reducing fuel consumption by 8%-10% and NOx emissions, adapting to heavy-load scenarios such as mines and infrastructure, and operating without failures like dripping and jamming for a long time.

It strictly matches the cylinder head interface and fuel common rail system of the 6WG1 engine, using original special gaskets and fixing bolts. The installation torque is operated according to the standard of 25-30N·m, enabling quick replacement without additional modification. Precise injection can increase combustion efficiency by more than 12%, reduce engine vibration and noise, minimize wear of components such as pistons and cylinder liners, extend the engine overhaul cycle, lower the overall machine maintenance cost, and improve the operational stability and economy of the equipment.