Number of ribs: 4; Length [mm]: 830; Article number of the recommended special tool: 1 987 947 000; Supplementary Info: Elastic; TecDoc Engine Number: 27472; Construction Year from: 03/2005, 09/2005, 09/2004; Construction Year to: 09/2007, 08/2007, 03/2007; Driven Units: Power steering pump; Engine Code: 20 4D 4; BMW: 3 Touring (E91),3 Limousine (E90),1 Schrägheck (E87); 11287791786, 7791786, 4EPK830, 4PK830; Serpentine belt,Auxiliary belt,Poly V-belt,Ribbed belt,Multi V-belt,Poly belt