Part Number: 51117116397/51 11 7116397/51117116398/51 11 7116398, Fits the following models: for X5 E53 2003-2006 Facelift, for 2006 X5 3.0i Sport Utility 4-Door 3.0L 2979CC l6 GAS DOHC Aspirated , for 2006 X5 4.4i Sport Utility 4-Door 4.4L 4398CC V8 GAS DOHC Aspirated , for 2006 X5 4.4i Lujo Sport Utility 4-Door 4.4L 4398CC V8 GAS DOHC Aspirated for 2006 X5 4.4i Sport Utility 4-Door 4.4L 4398CC V8 GAS DOHC Aspirated , for 2006 X5 4.4i Top Line Sport Utility 4-Door 4.4L 4398CC V8 GAS DOHC Naturally Aspirated , for 2006 X5 4.8is Sport Utility 4-Door 4.8L 4799CC V8 GAS DOHC Naturally Aspirated , for 2006 X5 4.8is Sport Utility 4-Door 4.8L 4837CC V8 GAS DOHC Naturally Aspirated , for 2005 X5 3.0i Sport Utility 4-Door 3.0L 2979CC l6 GAS DOHC Naturally Aspirated for 2005 X5 4.4i Sport Utility 4-Door 4.4L 4398CC V8 GAS DOHC Naturally Aspirated , for 2005 X5 4.4i Lujo Sport Utility 4-Door 4.4L 4398CC V8 GAS DOHC Naturally Aspirated aspirated , for 2005 X5 4.4i Sport Utility 4-Door 4.4L