INA is the original equipment (O.E.) supplier of this idler pulley used on a wide variety of BMW 3.0L gas applications. The Litens replacement part (supplied by INA) meets all form, fit, and performance characteristics of the original equipment part (with the exception of not having the car manufacturer's logo or part number applied to the part). This part is manufactured to the same exacting specifications as the O.E. part using a heavy duty polymer construction for long trouble-free performance. This is a complete pulley ASSEMBLY including the pulley and an attached O.E. quality Torx mounting bolt. Common O.E. part number: 11287556251