"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 Overall Dimensions L x W x H in. 57 x 21 x 19, DOT Approved Yes, Compatible With Diesel, Lock Type Stainless steel key locks, Fits Models 2008 Ford and Dodge trucks, Lock Included Yes, Finish Type Diamond plate, Tank Size gal. 60, 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, Material Type Aluminum, Shape Rectangle, Tank Type Auxiliary, 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"