Improve under hood appearance and cooling system reliability in your 2013-2014 Dodge 6.7L Cummins with the Mishimoto MMHOSE-RAM-13 Silicone Coolant Hose Kit. This performance kit replaces the factory upper and lower Cummins radiator hoses with 100% silicone components. Mishimoto Cummins radiator hoses are constructed from high-grade 4-ply silicone with heat-resistant embedded fibers for superior heat and pressure tolerance. Mishimoto's improved design eliminates the failure-prone stock y-connector, converting it to a 1-piece silicone hose. Silicone hoses are far more durable, reliable, and less prone to degradation than the factory rubber Cummins coolant hoses. Similar to the factory lower hose, the Mishimoto lower Dodge Ram radiator hose utilizes an internal spring to prevent hose collapse.