The GB Remanufacturing Fuel Injector Kit - 135871 is a comprehensive kit designed for servicing fuel injectors in a car. It includes a set of high-quality fuel injectors that have been remanufactured to meet industry standards and provide reliable performance. The kit also contains all necessary seals, o-rings, and gaskets for proper installation and sealing of the fuel injectors. In addition, it includes a fuel injector cleaner to remove any built-up deposits and improve fuel efficiency. This kit is an essential tool for maintaining the fuel system of a car and ensuring optimal engine performance.