Mazda CX9 Belt tensioner, part number *BT4E-6B209-CC* Fits CX9 2007-2015 with 3.7 and 3.5 engines. It is the same as for Ford Explorer 3.5 because they have the same engine - Original FoMoCo agency part. _CX9 2007-2015 Belt Tensioner, Original Agency Part, BT4E, Guaranteed Working - Jeddah_