Genuine GM Rocker Arm

Simply, the function of the rocker arm is to change the radial movement into linear movement, and this kind of device is properly called a reciprocating lever. The working process of the rocker arm is to take the spinning motion of the overhead camshaft and turn it into the up-and down movement, further leading to open and close the valves. It is common for the rocker arm to be failing owing to lack of lubrication. Hence, if you hear any taping noise form the end of the engine, and it shows insufficient lubrication oil in the rocker arm. Since most of the engine oil is delivered to the top end of the engine to keep the camshaft lubricated, and less for the rocker arm, so you need pay more attention on this device. Lubricate or change the rocker arm in your car before it is too late. We are glad to be your first choice and we offer you all GM genuine OEM rocker arm with a discounted price.