Keep your train horn system performing at its best with quality replacement train horn parts. This selection includes small, medium, and large black cast aluminum trumpets, manifolds, rear covers, stainless steel inner covers, silicone gaskets, and replacement O-rings. Each component is sold individually, making it easy to replace worn or damaged parts without purchasing an entire assembly. Built from materials such as aluminum, stainless steel, and silicone, these aftermarket train horn components are engineered for long-lasting service and are backed by a warranty against defects in workmanship and materials.