Volvo (1999-2009) Drive Belt Tensioner + pulley OEM ships fast tension spring roller Drive Belt Tensioner Includes pulley. Volvo part# 31251250, check fit below. Recently made by INA (OEM), not been lying around. Please see FITMENT CHART below, under PRODUCT DESCRIPTION. Email us your VIN for any questions. NOTE: XC90 does NOT fit 8 cylinder