Description:

OE Number:11281433571. Fitment: for BMW M3 3.2L 2001-2006, for BMW X5 3.0L 2001-2002, for BMW Z3 2.5L 2.8L 3.0L 3.2L 1999-2002, for BMW Z4 3.2L 2006-2008, for BMW 323i 2.5L 1999-2000, for BMW 323Ci 2.5L 2000, for BMW 323is 2.5L 1999, for BMW 325Ci 2.5L 2001-2003, for BMW 325i 2.5L 2001-2003, for BMW 325xi 2.5L 2001-2003, for BMW 328Ci 2.8L 2000, for BMW 328i 2.8L 1999-2000, for BMW 328is 2.8L 1999, for BMW 330Ci 3.0L 2001-2003, for BMW 330i 3.0L 2001-2003, for BMW 330xi 3.0L 2001-2003, for BMW 525i 2.5L 2001-2002. Material: This belt tensioner is made of metal material, which is wearable, durable and scratch-resistant.. Function: A belt tensioner or/and idler pulley is a system that guides the serpentine belt and the timing belt on a car engine. The function of a pulley and a tensioner is to limit the belt slip. The belt tensioner can be mechanic (spring-loaded) or hydraulic..