HomeEmission Control > Emission ComponentsStandard Ignition DFI2 Diesel Exhaust Fluid (DEF) Injection Nozzle
Part #: DFI2

Standard Ignition DFI2 Diesel Exhaust Fluid (DEF) Injection Nozzle

52 vehicles fit this part
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Fitment: Chevrolet and GMC, Express 2500, Express 3500, Silverado 2500 HD, Silverado 3500 HD, Savana 2500, Savana 3500, Sierra 2500 HD, and Sierra 3500 HD
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Overview of Standard Ignition DFI2 DEF Injection Nozzle

The Standard Ignition DFI2 Diesel Exhaust Fluid (DEF) Injection Nozzle is designed for precise emission control in select Chevrolet and GMC diesel engines. Engineered to meet the specifications for Lgh and lml engine ID codes, this gray-finished nozzle ensures proper DEF delivery for optimal exhaust treatment.

  • Compatible with Chevrolet and GMC diesel models including Express 2500/3500, Savana 2500/3500, Sierra 2500 HD/3500 HD, and Silverado 2500 HD/3500 HD
  • Engine ID Code compatibility: Lgh and lml
  • Engine VIN Code compatibility: L and 8
  • Durable gray finish for corrosion resistance
  • Part number DFI2 for easy identification and replacement

Product Details and Specifications

The DFI2 DEF Injection Nozzle from Standard Ignition is specifically designed to fit diesel engines with Lgh and lml engine ID codes, commonly found in heavy-duty Chevrolet and GMC trucks and vans. This component plays a critical role in the selective catalytic reduction (SCR) system by injecting the correct amount of Diesel Exhaust Fluid into the exhaust stream. The gray finish provides added protection against harsh operating conditions, ensuring consistent performance over time. The nozzle is compatible with engine VIN codes L and 8, making it suitable for a range of applications within the specified vehicle models.

Applications and Problem Resolution

This DEF injection nozzle is used in emission control systems to reduce nitrogen oxide (NOx) emissions in diesel engines. It addresses several common issues:

  • Inconsistent DEF injection leading to increased emissions
  • Clogged or malfunctioning nozzles causing SCR system faults
  • Reduced fuel efficiency due to improper DEF dosing
  • Check engine light triggered by emission control errors
  • Failed emissions tests related to DEF system performance

Installation Notes and Tips

Installation of the Standard Ignition DFI2 nozzle should be performed by a qualified technician familiar with diesel emission systems. Ensure the engine is cool and the DEF system is depressurized before removal. Clean the nozzle mounting area to prevent contamination. Verify compatibility with engine ID and VIN codes prior to installation. After installation, perform a system check to confirm proper DEF flow and SCR operation.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards for fit and function. The DFI2 DEF Injection Nozzle undergoes rigorous quality control to ensure reliability in emission control applications. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary by region and application.

BrandStandard Ignition
Part NumberDFI2
Color/FinishGray
Engine ID CodeLGH & LML
Engine Vin CodeL & 8

This part fits 52 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2016ChevroletExpress 25006.6LV8N/A
2016ChevroletExpress 35006.6LV8N/A
2016ChevroletSilverado 2500 HD6.6LV8N/A
2016ChevroletSilverado 3500 HD6.6LV8N/A
2016GMCSavana 25006.6LV8N/A
2016GMCSavana 35006.6LV8N/A
2016GMCSierra 2500 HD6.6LV8N/A
2016GMCSierra 3500 HD6.6LV8N/A
2015ChevroletExpress 25006.6LV8N/A
2015ChevroletExpress 35006.6LV8N/A
2015ChevroletSilverado 2500 HD6.6LV8N/A
2015ChevroletSilverado 3500 HD6.6LV8N/A
2015GMCSavana 25006.6LV8N/A
2015GMCSavana 35006.6LV8N/A
2015GMCSierra 2500 HD6.6LV8N/A
2015GMCSierra 3500 HD6.6LV8N/A
2014ChevroletExpress 25006.6LV8N/A
2014ChevroletExpress 35006.6LV8N/A
2014ChevroletSilverado 2500 HD6.6LV8N/A
2014ChevroletSilverado 3500 HD6.6LV8N/A
2014GMCSavana 25006.6LV8N/A
2014GMCSavana 35006.6LV8N/A
2014GMCSierra 2500 HD6.6LV8N/A
2014GMCSierra 3500 HD6.6LV8N/A
2013ChevroletExpress 25006.6LV8N/A
2013ChevroletExpress 35006.6LV8N/A
2013ChevroletSilverado 2500 HD6.6LV8N/A
2013ChevroletSilverado 3500 HD6.6LV8N/A
2013GMCSavana 25006.6LV8N/A
2013GMCSavana 35006.6LV8N/A
2013GMCSierra 2500 HD6.6LV8N/A
2013GMCSierra 3500 HD6.6LV8N/A
2012ChevroletExpress 25006.6LV8N/A
2012ChevroletExpress 35006.6LV8N/A
2012ChevroletSilverado 2500 HD6.6LV8N/A
2012ChevroletSilverado 3500 HD6.6LV8N/A
2012GMCSavana 25006.6LV8N/A
2012GMCSavana 35006.6LV8N/A
2012GMCSierra 2500 HD6.6LV8N/A
2012GMCSierra 3500 HD6.6LV8N/A
2011ChevroletExpress 25006.6LV8N/A
2011ChevroletExpress 35006.6LV8N/A
2011ChevroletSilverado 2500 HD6.6LV8N/A
2011ChevroletSilverado 3500 HD6.6LV8N/A
2011GMCSavana 25006.6LV8N/A
2011GMCSavana 35006.6LV8N/A
2011GMCSierra 2500 HD6.6LV8N/A
2011GMCSierra 3500 HD6.6LV8N/A
2010ChevroletExpress 25006.6LV8N/A
2010ChevroletExpress 35006.6LV8N/A
2010GMCSavana 25006.6LV8N/A
2010GMCSavana 35006.6LV8N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

126359282-11000260110161800-65002904-435DEF2EM1203IJ

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.