DNJ® Engine Valve Covers—also known as rocker covers, cam covers, or cylinder head covers—enclose the top end of the engine, safeguarding the valvetrain and helping to retain engine oil. These covers also serve as mounting points for PCV valves, breather grommets, and ignition components in some applications. Each DNJ® Engine Valve Cover is manufactured to meet or exceed OEM quality standards for an exact fit and includes application-specific gaskets or grommets when required, offering a complete solution for proper engine sealing and performance.
DNJ® Engine Valve Covers are manufactured from high-quality materials such as reinforced composite plastic, which offers excellent resistance to warping, thermal expansion, and chemical degradation while minimizing overall engine weight without compromising durability. Each valve cover includes a DNJ® Engine Valve Cover Gasket made from premium materials such as molded rubber and silicone rubber, chosen for their flexibility, durability, excellent oil resistance, temperature stability, and long-term sealing performance. All materials are rigorously tested to withstand thermal cycling, engine vibration, and oil saturation, and every component is manufactured to meet or exceed OEM quality standards.
DNJ® also offers related components for the cylinder head and valvetrain system, including valve cover gasket sets, camshaft seals, rocker arms, and more. With precision engineering and top-tier materials, DNJ® Engine Valve Covers deliver exceptional performance and long-lasting durability.
