The Cummins AR12190 Valve Rocker Arm is a replacement valve rocker arm for Cummins V-903 applications, compatible with BM96830, BM98351, and BM98352 configurations. It is a valve train component that transmits camshaft action to the engine’s valves, enabling the opening and closing of intake and exhaust valves as part of the combustion cycle. The AR12190 designation ties this rocker arm to the V-903 family and the BM96830, BM98351, and BM98352 assemblies, providing a direct-fit option for maintenance or repair on engines built to these specifications.
