Give your semitruck the quality 3406e camshaft it needs to run at max efficiency. At ATL Diesel, you'll find a durable CAT 3406e camshaft that is built for superior reliability and performance. We make the purchasing process for your 3406e performance camshaft simple and easy. All you need to do is add your CAT 3406e rocker box assembly to your cart, check out, and get ready to receive your new, high-quality overhead parts. If you have any questions about our CAT 3406e rocker arms or other components, visit our Contact Us page today. We'll be glad to help you find the quality parts you need to optimize your semi's performance and durability.