Chevrolet GMC Duramax LML Fuel Injector 2011-2016: OEM 2173440

Keep Your Duramax Running Clean and Consistent

What Is It?

The Chevrolet GMC Duramax LML Fuel Injector (OEM 2173440) is a precision-engineered fuel delivery component for 6.6L Duramax LML diesel engines manufactured from 2011 to 2016. This OEM injector is responsible for introducing the exact amount of fuel into each cylinder to maintain steady combustion and clean engine operation.

Why Choose OEM 2173440?

The OEM 2173440 is manufactured to match the original equipment standards set by GM and Bosch. It offers the proper fit, spray pattern, and flow characteristics needed for your Duramax LML to operate smoothly without triggering error codes or working condition irregularities caused by poor-quality replacements.

Key Benefits

✅ Designed for Duramax LML: Built specifically for 2011–2016 Chevrolet and GMC 6.6L diesel engines
✅ Precision Fuel Delivery: Supports accurate injection timing and flow consistency
✅ OEM-Calibrated: Matches factory engine control systems with no tuning required
✅ Durable Components: Withstands high fuel pressure and heat under heavy use
✅ Easy Fitment: Direct plug-in to existing fuel rail and electronic connectors

Applications

This injector is used in Chevrolet Silverado HD and GMC Sierra HD trucks powered by the 6.6L Duramax LML engine between 2011 and 2016. It's ideal for light commercial use, towing, and everyday driving where smooth engine working conditions and fuel consistency are critical.

Installation Notes

Professional installation is recommended. Before replacing the injector, inspect the fuel lines, seals, and electrical connectors. Always use new sealing washers and follow torque specs to prevent leaks. After installation, a scan tool may be needed to reset fuel trim values and confirm system readiness.

Final Thoughts

The OEM 2173440 Fuel Injector is a reliable replacement option for maintaining smooth operation in your Duramax LML engine. With factory-grade precision and compatibility, it helps ensure efficient combustion, reduced emissions, and consistent driving confidence.