Model Compatibility: Fits F39 and F48 models as a direct replacement for the engine water coolant tube. Part Number: Matches the part number 11538645546 specified for the engine water coolant tube application. Function: Restores function of the engine water coolant tube in compatible vehicles. Application: Designed specifically for use as an engine water coolant tube in the stated model range. Installation: Installs in the same location and orientation as the engine water coolant tube on F39 and F48 models., Manufacturer: gkXpGeGa