2004-2007 Subaru Impreza 2.5L H4. 2004-2005 Subaru Impreza 2.0L H4. Serpentine Belt is designed to be oil-resistant and temperature-stable from -22F to 176F (-30C to 80C). Position: Accessory Drive. Bullet Point 5: Includes OE Quality idler and tensioner bearings for the accessory drive system.