Coolant Return Hose, Rein - E63/E64 645Ci

On the E63/E64 645Ci models, this coolant / water hose runs from the Water Pump to Oil Cooler Thermostat. These models came with the N62 V8 engine and were offered in 2004 and 2005. 

This part is listed by BMW as BMW part number 17127519251 and is described as “Return Hose”, and is only used on the E63/E64 6 Series 645Ci model (2004-2005). 

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.