AMCC Crankcase Vent Hose Left and Right (2Pcs) Compatible with BMW 550i 650i 750i X5 X6 B7 F01 F02 F07 F10 F12 F13 E70 E71 N63 Replaces:11157646086 + 11157646087 [Fitment]: LH&RH Crankcase Vent Breather Hose for 550i 650i 750i Alpina B7 B7L X5 X6 N63 4.4L [Reference Number]:[Right] 11157646086, 11-15-7-646-086, 11-15-7-575-642, 11-15-8-645-237, ABV0193, EMH249, V202329 [Left]11157646087, 11-15-7-646-087, 11-15-7-575-643, 11-15-8-645-239, ABV0194, EMH250, V202330 [Description]: For cylinders 5-8 and cylinders 1-4 connects to the valve cover. Aftermarket Products. 100% brand new. Durable and reliable in quality [Attention]: Please carefully compare the pictures and OE numbers to match your original parts before purchasing the product. You can send me the VIN to confirm the fitment AMCC products are guaranteed for one year after sale，100% inspection and testing prior to shipment