Engine Rocker Arms Rocker arms are an essential part of an internal combustion engine's valve train system. They act as levers that transfer the camshaft’s rotary motion into the linear motion required to open and close the engine's intake and exhaust valves. Engine Rocker Arms Manufacturer in Rajkot Gujarat India Engine Rocker Arms Manufacturer in Delhi Engine Rocker Arms Manufacturer in Hubli Engine Rocker Arms Manufacturer in Mumbai Engine Rocker Arms Manufacturer in Karnataka