As car spare parts are the components that are responsible for the correct and proper functioning of an automobile, it is of great importance to their life. From improving performance to being responsible for safety, these parts have a variety of functions. Car replacement parts, e.g., technological features are the introduction of innovative materials such as high-strength steel or high-strength aluminum alloys to enhance durability. These are made by the specs to perform to fit, in fact replacing old or harmed parts on predefined make and model of auto. Applications range from engine parts such as the pistons and camshaft, to electrical components including alternators and batteries, to safety systems like brakes and air bags. These parts need to work in harmony for a vehicle to perform up to its best and, when it comes time to sell, bring back the highest amount of money possible.