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137588Secondary Air Injection Check Valve
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APDTY 137588 Combination Valve


  • Left
  • Match Vehicle To Compatibility Chart To Ensure Exact Fitment
  • Compatible With 2002-2005 Audi A4
  • Left
  • Compatible With 2002-2006 Audi A4 Quattro
  • Left
  • Compatible With 2002-2004 Audi A6
  • Left
  • Compatible With 2002-2004 Audi A6 Quattro
  • Left
  • See Buyers Guide for compatibility
Make Model Qualifiers Year
Audi A4
  • Position: Left
  • 3.0L V6 2976cc
 2002-2005
Audi A4 Quattro
  • Position: Left
  • 3.0L V6 2976cc
 2002-2006
Audi A6
  • Position: Left
  • 3.0L V6 2950cc
 2002-2004
Audi A6
  • Position: Left
  • 3.0L V6 2976cc
 2002-2004
Audi A6 Quattro
  • Position: Left
  • 3.0L V6 2950cc
 2002-2004
Audi A6 Quattro
  • Position: Left
  • 3.0L V6 2976cc
 2002-2004