What are the symptoms of bad valve stem seals?Valve stem seals are an essential component of an engine's valve system, responsible for sealing the valve stem against the valve guide to prevent oil from entering the combustion chamber and causing issues such as oil consumption, carbon buildup, and decreased engine performance.For product details, please contact NNK factory
What is a CV joint boot kit?The part that simultaneously enables the axle to flex while transmitting the driving force is called a drive axle joint, and is also known as a constant velocity (or CV) joint. The CV Boot is a ribbed, rubber flexible boot that keeps water and dirt out of the joint and the special grease inside the joint.For product details, please contact NNK factory