Produced by leading factory, this product is very and reliable. This pipe is with air mass sensor. It is also called air mass sensor with engine air duct. Type:Car Air Intake Hose Air Duct w/ Mass Sensor Condition: Fitment Type:Direct Replacement Install Placement on Vehicle:Engine Part Number:A6420908237 Interchange Part Number:642 090 82 37/6420908237 NO.: A6420946397 A6420943497 A6420907337 A6420907437 A6420903497 A6420906097 A6420906397 A6420907397 A6420907497 Fitment: For - E-Class W211: 2007-2009 E320 2011-2013 E350 Bluetec For - -Class X164: 2007-2009 GL320 2010-2012 GL350 For - ML-Class W164: 2007-2009 ML320 2010-2011 ML350 Bluetec 4M For - R-Class W251: 2007-2009 R320 2010-2012 R350 Bluetec 4M Colour:Black Material:Plastic Package Contents: 1 * Car Engine Air Duct with Air Mass Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.