The Bosch Fuel Injector Kit - 472338 is a comprehensive kit designed to service the fuel injectors of a car. It includes various products that are essential for maintaining and repairing the fuel injectors of a vehicle. The kit contains a set of fuel injectors, which are responsible for delivering fuel to the engine in a precise and controlled manner. It also includes a fuel injector cleaner, which helps to remove any build-up or debris that may be clogging the injectors, improving their performance. Additionally, the kit contains O-rings and seals, which are necessary for ensuring a tight and secure fit of the injectors in the engine. The kit also includes installation hardware, such as clips and screws, to facilitate the installation process. Overall, the Bosch Fuel Injector Kit - 472338 is a comprehensive set of products that are essential for maintaining and optimizing the performance of a car's fuel injectors.