The Rockers and Flute as vital engine components of the engine of the car, form part of the NPC ® product portfolio, a brand that ensures quality and good performance of each of its parts.

There are two types of Rockers, those that pivot on an axis that are made of cast iron and mounted on a rocker shaft, and those on pedestal that are made of cast iron or stamped steel and are mounted on a spherical seat on steel volts.