National 343-013 axle hub cap, a heavy duty cast aluminum truck hub cap. Cast aluminum construction suits truck hub service, and the cap sits in our National Seals category beside the matching National wheel and oil seals. A genuine National part from Pro Gear and Transmission.FeaturesNational 343-013 axle hub capHeavy duty truck hub capCast aluminum constructionGenuine National partTech SpecsType: Axle hub capMaterial: Cast aluminumDuty: Heavy duty truck