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The 387-9434 hydraulic injector is a critical fuel system component
for Caterpillar C9 diesel engines. Designed for high-precision fuel
injection, it is widely used in construction machinery such as the
330D and 336D excavators and the D6R and D7R bulldozers.
This injector precisely controls fuel injection quantity and timing
for efficient combustion, improving engine power output and fuel
economy while reducing emissions. Manufactured using high-strength
metal and advanced processing techniques, it is wear-resistant,
heat-resistant, and stable in high-pressure environments, ensuring
long-term, reliable operation.