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.

• High-Precision Injection: Precisely controls fuel quantity and injection timing to improve engine combustion efficiency.
• Reliable and Durable: Utilizes high-strength materials and a wear-resistant design to withstand high-temperature and high-pressure operating environments.
• Stable Performance: Maintains consistent output even under prolonged, high-load operation.
• Easy Installation: Standard interface design allows for easy replacement without additional modification.