This is an OE quality alternator bolt kit. Rein automotive products provide you with the proper fit, form and function for European vehicles. With fitments for some of the world's finest automobiles, including Audi, BMW, Mercedes Benz, Mini, Porsche, Saab, Volkswagen. Every part is manufactured with top quality materials to ensure it has the same tolerances as the part that came on the car to provide ease of installation and long lasting durability.