The Hitachi Fuel Injector Kit - 135910 is a comprehensive kit designed for servicing and maintaining the fuel injectors in a car. It includes a variety of products that are essential for keeping the fuel injectors clean and functioning properly. The kit contains a fuel injector cleaner, fuel injector o-rings, fuel injector seals, and fuel injector gaskets. These components work together to remove built-up deposits and contaminants from the fuel injectors, ensuring efficient fuel delivery and optimal engine performance. The kit is suitable for use on a wide range of car models and is an essential tool for any car owner looking to keep their fuel system in top condition.