aFe DFS780 Pro Fuel Pump (Full-time Operation) Dodge Diesel Trucks 03-04.5 L6-5.9L (td)Billet 6061 T6 Aluminum Manifold: Eliminates porosity concerns with cast aluminum. Contoured CNC Machining Of Manifold Passages: Enhances flow through the manifold to reduce pressure drop due to flow restrictions. Universal Carbon Steel Mounting Bracket: Heavy duty bracket easily mounts with supplied hardware. "Marine Grade" Motor: Protected against dust intrusion and powerful water jets. Helical Bronze Spur Gears: Bronze gears more forgiving of