Accessories for TITAN Travel Trekker9900002 One - Way Breather Kit for Chrysler RAM ApplicationsSome 2013 and newer Chrysler RAM products feature a vent line breather which is usually located in the fender well just under the vehicle's fill spout assembly. On some of these vehicles, especially the EcoDiesel, this breather is susceptible to leakage which can be exacerbated by filling from an auxiliary system. If this is a problem for your vehicle, it can be addressed by this kit.