National 343-024 axle hub cap, a heavy duty cast aluminum truck hub cap. It is cast from aluminum for truck hub service and is listed with our National Seals. This is a genuine National part from Pro Gear and Transmission.FeaturesNational 343-024 axle hub capHeavy duty truck hub capCast aluminum constructionGenuine National partTech SpecsType: Axle hub capMaterial: Cast aluminumDuty: Heavy duty truck