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3116 Fuel Injector 0R-3742 – High-Performance Mechanical Unit Injector

Engineered for precision and durability, the 0R-3742 Fuel Injector​ is a premium mechanical unit injector (MUI) designed specifically for 3116 and 3126 series diesel engines. This OEM-quality replacement component is meticulously calibrated to restore factory-specified fuel delivery and atomization, ensuring optimal combustion efficiency, reliable power output, and reduced emissions in medium-duty truck and industrial applications.

Product Overview & Direct Interchange

The 0R-3742 is a direct-fit mechanical unit injector that meets or exceeds original specifications. It is designed for seamless integration into the engine's fuel system without requiring electronic recalibration, providing a reliable solution for performance degradation or injector failure.

Cross-Reference & Interchangeability

This injector is part of interchangeable parts family, offering broad compatibility for various 3116 and 3126 engine configurations. The table below lists key interchangeable OEM numbers, ensuring accurate sourcing for fleet maintenance and repair.

Technical Specifications & Design

Built for the high-pressure demands of mechanical diesel systems, this injector features a robust unit injector design. It operates effectively within the high-temperature and high-vibration environment of industrial and on-highway applications, ensuring consistent fuel delivery.

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