"Auxiliary fuel tank with toolbox built in Auxiliary tank has fittings so it can connect to your factory lines. Diesel install kits Item#s 3490901, 3490902 and 43748, are also available sold separately. U.S.A. It is the user's responsibility to comply with local, state and federal requirements pertaining to safe transportation, loading and discharging of tank contents Compatible With Diesel, DOT Approved Yes, Lock Included Yes, Lock Type Stainless steel key locks, Material Type Aluminum, Overall Dimensions L x W x H in. 55 x 20 x 19, Fits Models 2008 Ford and Dodge trucks, Tank Size gal. 60, Tank Type Auxiliary, Shape Rectangle, Finish Type Diamond plate, Box Dimensions L x W x H in. 48 x 20 x 6 1/4, Tank Dimensions L x W x H in. 55 x 20 x 12 3/4, Includes Manual sight gauge, baffles, return, drain fittings. Baffled tanks for reduced fuel sloshing Large opening for fast fillups Cannot be used to transfer gasoline to another vehicle Not intended to be used for gasoline"