Aluminum Alloy Diesel Fuel Caps DEF Oil Tank CoversFit for Dodge RAM Truck 1500 2500 3500 13-18 Product Description:*1.It is made of aluminum alloy and anodized blue with the "DEF" laser logo. The perfect size O-ring ensures a tight fit.*2.This fits RAM diesel, fuel cap stops dirt, water and other debris out of your fuel tank saving you costly engine repairs. (May not fit 2019 models)*3.The DEF cap features a Smooth and Easy TO GRIP handle that will SLIDE and LOCK into place with a smooth-as-butter feel!*4.New raised grip design makes it easier to remove and put back on compared to other cap designs*5.Compatible with Dodge Ram EVAP emiion system. We installed a small ventilation hole for the system to allow normal breathing.Specifications:Material: Aluminum AlloyColor:Green,BlueDiesel Fuel Cap Size: 4.7x3.6x2.2cm(1.89x1.42x0.87inch)(Top Diameter x Bottom Diameter x Height)Oil Cap Size: 5.1x3.86cm(2.0x1.45inch)Compatible With: Fit for Dodge RAM 1500 2500 3500 13-18Note:(1) All pictures are profeionally colored, but due to the different ambient light and different display device settings, there may be some deviations between the pictures you see and the items themselves. Please understand.(2) The data is measured manually, and there may be some deviation, but it does not affect the use.