Replacement Coolant Bypass Hose for our 2007.5 2018 Ram 6.7L Cummins coolant bypass kits. This hose is covered with a high temperature protective sleeve. Application Notes Direct replacement hose for Fleece Performance Coolant Bypass kits FPE CLNTBYPS CUMMINS 0712 and FPE CLNTBYPS CUMMINS 1318