★ Compatibility Vehicles - Diese caps fit 2013 2014 2015 2016 2017 2018 Dodge Ram 1500 2500 3500 diesel trucks with a cap less fuel system, Cummins and Eco-diesel vehicles with 3.0L V6 engines.. ★ Airtight & Precision Fit - Our diesel fuel caps are well sealed and can keep out dust, water, rain, snow and others to protect your fuel system,saving you costly engine repairs. ★ Safe & Durable - Diese fuel caps are crafted with anodized billet aluminum which won't be impacted even after long-term exposure. ★ Easy to Install - Simply remove your old cap and reattach your new fuel cap in its place. Just take seconds to install your new Ram Fuel Caps. ★ Guarantee - We provide 12 months worry-free warranty and lifetime friendly service. If you have any problems please feel free to contact with us. illet Aluminum Fuel Cap Combo Pack,Diesel Fuel Cap for Dodge - Magnetic Green Diesel Fuel Cap and Non-magnetic Blue DEF Cap for 2013-2018 Dodge Ram Diesel Trucks 1500 2500 3500