DESCRIPTION Engine Drive Belt Idler Pulley (Smooth). Located near Water Pump Brand New, Premium Quality! MANUFACTURER LAIPZ APPLICATION Mercedes - Benz 2007C230 2007C280 2008 - 2012C300 2007 - 2011C350 2007 - 2010CL550 2007 - 2009CLK350 2007 - 2009CLK550 2007 - 2011CLS550 2007 - 2010E350 2011E3504Matic 2011E350Base 2007 - 2011E550 2009 - 2015G550 2007 - 2012GL450 2008 - 2012GL550 2010 - 2012GLK350 2007 - 2009ML350 2010 - 2011ML3504Matic 2010 - 2011ML350Base 2008 - 2011ML550 2007 - 2009R350 2010 - 2011R3504Matic 2010 - 2013S400 2007 - 2011S550 2007 - 2009SL550 2011 - 2012SL550 2006 - 2008SLK280 2009 - 2011SLK300 2006 - 2011SLK350.