The Bosch Fuel Injector Set - 140683 is a comprehensive kit designed for servicing a car's fuel injection system. It includes a variety of products that are essential for maintaining the proper functioning of the fuel injectors. 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 seals and O-rings, which are crucial for preventing leaks and ensuring a tight seal between the injectors and the engine. Additionally, the kit contains a fuel injector cleaning solution, which helps to remove any build-up or debris that may be clogging the injectors. This ensures that the injectors are working at their optimal level, resulting in improved engine performance and fuel efficiency. The Bosch Fuel Injector Set - 140683 is a must-have for any car owner looking to maintain their fuel injection system and keep their vehicle running smoothly.