HomeEmission Control > Emission ComponentsStandard Ignition DFI7 Diesel Exhaust Fluid (DEF) Injection Nozzle
Part #: DFI7

Standard Ignition DFI7 Diesel Exhaust Fluid (DEF) Injection Nozzle

22 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Freightliner and Mercedes-Benz, Sprinter 2500, Sprinter 3500, GLK250, ML250, E350, and R350
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Overview of Standard Ignition Diesel Exhaust Fluid Injection Nozzle

The Standard Ignition DFI7 Diesel Exhaust Fluid (DEF) Injection Nozzle is engineered for precise DEF delivery in select Mercedes-Benz diesel models. Designed with specific connector and terminal configurations, this nozzle supports efficient emission control and system reliability.

  • Connector Gender: Female for secure connection
  • Connector Quantity: 1 connector ensuring proper fit
  • Terminal Gender: Male terminals for reliable electrical contact
  • Terminal Quantity: 2 terminals to maintain stable signal transmission

Product Details and Specifications

This DEF injection nozzle, part number DFI7, is compatible with Mercedes-Benz vehicles including E350, GLK250, ML250, R350, Sprinter 2500, and Sprinter 3500 models. The female connector and dual male terminals are designed to integrate seamlessly with the vehicle’s emission control system, ensuring accurate dosing of diesel exhaust fluid. Proper DEF injection is critical for reducing nitrogen oxide emissions and maintaining compliance with environmental regulations.

Compatible Mercedes-Benz Models and Applications

This injection nozzle is specifically compatible with the following Mercedes-Benz diesel vehicles: E350, GLK250, ML250, R350, Sprinter 2500, and Sprinter 3500. It is intended for use in emission control systems requiring precise DEF injection to optimize exhaust treatment and system performance.

  • Ensures accurate DEF delivery to reduce emissions
  • Replaces faulty or worn DEF injection nozzles
  • Helps resolve DEF dosing errors and related engine warning lights
  • Supports proper operation of the SCR (Selective Catalytic Reduction) system
  • Prevents DEF leaks and electrical connection failures

Installation Notes and Tips

When installing the Standard Ignition DFI7 DEF injection nozzle, ensure the female connector is properly aligned with the vehicle harness. Verify that both male terminals are securely connected to avoid signal interruptions. It is recommended to inspect the DEF system for contamination or damage before installation. Follow manufacturer torque specifications and safety procedures during replacement.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM standards for fit and function. The DFI7 DEF injection nozzle undergoes rigorous quality control to ensure durability and performance in emission control applications. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandStandard Ignition
Part NumberDFI7
Connector GenderFemale
Terminal GenderMale

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2015Mercedes-BenzGLK2502.1LL4N/A
2015Mercedes-BenzML2502.1LL4N/A
2015Mercedes-BenzSprinter 25003.0LV6N/A
2015Mercedes-BenzSprinter 35003.0LV6N/A
2014Mercedes-BenzGLK2502.1LL4N/A
2014Mercedes-BenzSprinter 25003.0LV6N/A
2014Mercedes-BenzSprinter 35003.0LV6N/A
2013Mercedes-BenzE3503.0LV6N/A
2013Mercedes-BenzGLK2502.1LL4N/A
2013Mercedes-BenzSprinter 25003.0LV6N/A
2013Mercedes-BenzSprinter 35003.0LV6N/A
2012Mercedes-BenzE3503.0LV6N/A
2012Mercedes-BenzR3503.0LV6N/A
2012Mercedes-BenzSprinter 25003.0LV6N/A
2012Mercedes-BenzSprinter 35003.0LV6N/A
2011Mercedes-BenzE3503.0LV6N/A
2011Mercedes-BenzR3503.0LV6N/A
2011Mercedes-BenzSprinter 25003.0LV6N/A
2011Mercedes-BenzSprinter 35003.0LV6N/A
2010Mercedes-BenzR3503.0LV6N/A
2010Mercedes-BenzSprinter 25003.0LV6N/A
2010Mercedes-BenzSprinter 35003.0LV6N/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:

1644900213800-65007904-510DEF7DEF800V30680002

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