Hayden 5053 Accessory Drive Belt Idler Pulley. Hayden 5053. Accessory Drive Belt Idler Pulley. Style: Idler / Tensioner Pulley. Pulley Type: Back Idler. Fits what vehicles: 1994-1999 BMW 318i, 1994-1999 BMW 318is, 1995-1999 BMW 318ti, 1995 BMW M3, 1997-1998 BMW M3.
