(Fitment) -- PHILTOP Belt Tensioner with Pulley Replacement For Lancer 2003-2006, Outlander 2003-2006, Galant 2004-2012, Eclipse 2006-2012 (OE Reference Number) -- MD373939, Manufactured using the same or improved technology and quality materials as the original equipment manufacturer (OEM) components to ensure a factory match (Labyrinth Seal Protection) -- PHILTOP automatic drive belt tensioner assembly with pulley adopts labyrinth seal to protect internal components, meeting or exceeding the service life requirements of the original manufacturer (Long service life) -- The damping system tested hundreds of times absorbs extreme vibration to improve the life of the tensioner as well as belts and accessories (Strong stability) -- Torsion round spring design used in PHILTOP tensioner provides reliable and stable tension PHILTOP Automatic Drive Belt Tensioner with Pulley Assembly Product Information Reference : OE: MD373939 TIPS: Use the "Amazonconfirmedfit" in the upper left corner of the link to confirm the year/make/model of the vehicle you are purchasing before making your purchase. Fitment: Lancer 2003-2006 2.0L 2.4LOutlander 2003-2006 2.4LGalant 2004-2012 2.4LEclipse 2006-2012 2.4L Why choose PHILTOP Belt Tensioner with Pulley?