17217600974 Engine Oil Cooler Line Inlet fit for BMW X5 Sport Utility XDrive30i Sport Utility 3.0L 2011 2012 2013. OEM NO. : 17217600974. Stable performance: The petrol oil cooler pipe reduces the temperature of the oil, reduces oxidation and and extends the life of the oil. Water-cooled oil coolers are placed in the cooling water circuit, using the cooling water temperature to control the lubricant temperature. Water-cooled oil coolers typically consist of an aluminum alloy casing, front and rear covers, and copper core tubes, with cooling fins on the outside of the tubes to enhance the cooling effect., Manufacturer: GAYCLG