The 3981507 fuel injector is designed specifically for the Caterpillar C7.1 diesel engine and is widely used in excavators such as the 320D2, E320D2, and 336D. This injector precisely controls fuel injection quantity and timing, improving engine combustion efficiency, reducing emissions, and increasing power output and fuel economy. Made of high-strength materials and precision machining, it ensures long-term stable operation and is an essential component in the engine's fuel system.
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