For Use on Hino Medium Duty Box Trucks and Refrigerated (REFER) Trailer Diesel Fuel Tanks Please measure the diameter of your current fuel cap or fuel tank fill tube prior to ordering One 2 1/4” diameter, die-cast aluminum diesel fuel cap. Female fitting, non-vented, 11.5 TPI NPSH, for diesel application only Material: Aluminum and Stainless Steel. Includes rubber gasket seal, safety chain, and bail. Approximate dimensions = Across threads cap 2 1/4”, Across threads filler neck 2 5/16” For use on thermally vented fuel tanks Utilizes a Viton O-ring for superior resistance against shrinking and cracking. Stainless steel retaining chain and bail for corrosion protection For use on Hino models: Hino L Series: L6 & L7; Hino XL Series: XL7 & XL8 Application: For Use on Hino Medium Duty Box Trucks and Refrigerated (REFER) Trailer Diesel Fuel Tanks Product Features: Please measure the diameter of your current fuel cap or fuel tank fill tube prior to ordering One 2 1/4” diameter, die-cast aluminum diesel fuel cap. Female fitting, non-vented, 11.5 TPI NPSH, for diesel application only Material: Aluminum and Stainless Steel Includes rubber gasket seal, safety chain, and bail. Approximate dimensions = Across threads cap 2 1/4”, Across threads filler neck 2 5/16” For use on thermally vented fuel tanks Utilizes a Viton O-ring for superior resistance against shrinking and cracking Stainless steel retaining chain and bail for corrosion protection For use on Hino models: Hino L Series: L6 & L7; Hino XL Series: XL7 & XL8