Chevrolet GMC Duramax LML Fuel Injector 2011-2016: OEM 2173440 ( Set of 8 )

Complete Fuel Injector Replacement for Duramax LML Engines

What Is It?

This set of eight OEM 2173440 fuel injectors is engineered for the 6.6L Duramax LML diesel engine found in Chevrolet and GMC HD trucks from 2011 to 2016. These injectors are responsible for delivering precisely metered fuel into each cylinder to maintain consistent combustion and engine operation across all firing points.

Why Choose OEM 2173440 (Set of 8)?

Choosing a complete OEM injector set ensures uniform fuel delivery across all cylinders, reducing the risk of imbalance and future failures. This factory-calibrated set matches the original design for the LML engine, offering precise fitment, reliable function, and long-lasting durability.

Key Benefits

✅ Full-Cylinder Coverage: Includes 8 injectors for a complete system refresh
✅ Duramax LML Compatible: Designed for 2011–2016 Chevrolet Silverado HD and GMC Sierra HD 6.6L diesel engines
✅ Consistent Fuel Distribution: Helps maintain even combustion and engine smoothness
✅ OEM Fit and Calibration: Integrates seamlessly with factory fuel systems and ECU parameters
✅ Long-Term Reliability: Built to handle high-pressure diesel environments and extended use

Applications

This injector set is ideal for trucks that require a complete fuel system refresh—especially high-mileage vehicles or those experiencing multiple injector issues. It’s compatible with Duramax LML engines used in towing, commercial, and heavy-duty applications.

Installation Notes

Professional installation is recommended. Technicians should replace seals, check injector cups for wear, and follow torque specifications. After installation, the fuel system should be primed, and balance rates should be checked with diagnostic tools to ensure optimal working conditions.

Final Thoughts

The OEM 2173440 Fuel Injector Set (8-Pack) is a reliable solution for restoring proper fuel delivery in your Duramax LML engine. With matched injectors and OEM-grade quality, this set helps bring your diesel truck back to smooth, consistent operation—ready for the road, job site, or tow route.