The GB Remanufacturing Fuel Injector Kit - 473971 is a comprehensive kit designed for servicing and maintaining the fuel injectors in a car. It includes a variety of products to help improve the performance and efficiency of the fuel injectors. The kit contains a set of fuel injectors, which are responsible for delivering fuel to the engine, as well as O-rings, seals, and gaskets to ensure a proper and leak-free installation. Additionally, the kit includes a fuel injector cleaning solution, which helps remove any build-up or deposits that may be affecting the performance of the injectors. This kit is suitable for a range of car models and is an essential tool for maintaining the fuel system of any vehicle.