OM 647 2.7L I5 engine 2004-2006
OM 642 3.0L V6 engine 2007-2009
aka MAF Sensor, Air Mass Sensor, Air Mass Meter, etc.
Not for 2010 and later BlueTec engines.
Sprinter 2004-2006 2.7L diesel
Sprinter II 2007-2009 3.0L diesel
This is a an original Bosch part, and is the exact same part as sold at a franchise dealer.
It is NOT the cheap Chinese
knock-off that you see on eBay, which often doesn't work or fails after a few weeks.