HomeEmission Control > Vacuum SystemStandard Ignition DV166 Diverter Valve - Left or Right
Part #: DV166

Standard Ignition DV166 Diverter Valve - Left or Right

Right
⚙️ 18 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi, A4 Quattro, A4, A6, and A6 Quattro
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Overview of Standard Ignition Diverter Valve DV166

The Standard Ignition DV166 diverter valve is designed for emission control systems in select Audi vehicles. Engineered with a 1/2 inch hose size and a single port, this diverter valve supports proper vacuum system function in Audi A4, A4 Quattro, A6, and A6 Quattro models.

  • Compatible with Audi A4, A4 Quattro, A6, and A6 Quattro
  • Hose size: 1/2 inch for precise vacuum connection
  • Single port design for streamlined installation
  • Part number DV166 for accurate identification
  • Category: Emission Control > Vacuum System

Technical Details and Specifications

The Standard Ignition DV166 diverter valve features a 1/2 inch hose size, which ensures a secure and proper fit within the vacuum system of compatible Audi models. Its single port configuration simplifies integration into the emission control system, maintaining optimal vacuum flow and pressure regulation. This part is specifically designed to meet the requirements of Audi A4, A4 Quattro, A6, and A6 Quattro vehicles, ensuring compatibility and reliable performance.

Function and Application

This diverter valve plays a critical role in the emission control vacuum system by regulating vacuum pressure and diverting airflow as needed. It helps maintain engine efficiency and emission standards by controlling vacuum flow within the system.

  • Prevents vacuum leaks that can cause engine performance issues
  • Helps reduce emissions by maintaining proper vacuum pressure
  • Supports smooth operation of emission control components
  • Addresses issues such as rough idling or check engine light related to vacuum system faults
  • Ensures consistent vacuum flow for emission compliance

Installation Notes and Tips

When installing the Standard Ignition DV166 diverter valve, ensure the 1/2 inch hose is properly seated on the single port to prevent vacuum leaks. Verify compatibility with your Audi A4, A4 Quattro, A6, or A6 Quattro model before installation. It is recommended to inspect surrounding vacuum lines and connectors for wear or damage during replacement to maintain system integrity.

Quality Assurance and Warranty

Standard Ignition parts, including the DV166 diverter valve, are manufactured to meet OEM specifications for fit and function. This part undergoes quality control testing to ensure durability and reliable performance within the emission control vacuum system. Warranty coverage details are provided by Standard Ignition and typically cover defects in material and workmanship under normal use.

BrandStandard Ignition
Part NumberDV166
Hose Size - Inches1/2

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006AudiA4 Quattro3.0LV6Right
2005AudiA43.0LV6Right
2005AudiA4 Quattro3.0LV6Right
2004AudiA43.0LV6Right
2004AudiA4 Quattro3.0LV6Right
2004AudiA6Right
2004AudiA6Left
2004AudiA6 Quattro3.0LV6Right
2003AudiA43.0LV6Right
2003AudiA4 Quattro3.0LV6Right
2003AudiA6Right
2003AudiA6Left
2003AudiA6 Quattro3.0LV6Right
2002AudiA43.0LV6Right
2002AudiA4 Quattro3.0LV6Right
2002AudiA6Left
2002AudiA6Right
2002AudiA6 Quattro3.0LV6Right

* 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:

06C131102A2-394814V129572256045073-351477652111911-971DV162EC6045

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