Rocker Arm

DNJ Rocker Arm

DNJ® Engine Rocker Arms are key components in the engine’s valvetrain system, responsible for transferring motion from the camshaft to the intake and exhaust valves. This motion controls the opening and closing of the valves, managing airflow and combustion cycles.

DNJ® Engine Rocker Arms are available in a range of designs, including stamped, cast, and roller types. Each part is precision-manufactured to ensure a direct-fit replacement for specific engine applications. Depending on the engine configuration, sets may include rocker arms with built-in rollers, shafts, or mounting hardware for complete installation.

DNJ® Engine Rocker Arms are manufactured from high-strength materials such as stamped steel or aluminum alloy. Stamped steel is commonly used for its structural integrity in standard engines, while aluminum alloy rocker arms are favored for their lightweight properties and superior heat dissipation. Where applicable, roller tips and trunnions are hardened and precision-ground to minimize friction and wear, extending the lifespan of both the rocker and the valvetrain.

DNJ® Engine Rocker Arms are manufactured to meet or exceed OEM quality standards.

DNJ® also offers a full line of related valvetrain components, including camshafts, lifters, rocker arm shafts, timing sets, and more. With precision engineering and top-tier materials, DNJ® Engine Rocker Arms deliver exceptional performance and long-lasting durability.