The fuel injector o-rings ensure that a proper seal is created between the fuel rail and the injector, or the fuel rail and the intake manifold. There is one o-ring on the upper section of the injector, and one on the lower section. Recommended to be replaced any time the injectors are removed to ensure they stay leak free.
This is a complete set including the upper and lower o-rings for all of your fuel injectors.
This Part Fits the Following Vehicles