The Elring Brake Booster Vacuum Pump Seal - 702358 is a replacement seal for the brake booster vacuum pump in a vehicle. This seal is designed to prevent air leaks and maintain proper vacuum pressure for the brake booster system. It is made from high-quality materials to ensure durability and reliable performance. This seal is specifically designed for the 702358 model of Elring brake booster vacuum pump. It is an essential component for ensuring the proper functioning of the brake system and should be replaced if there are any signs of wear or damage.