If you have a remanufactured fuel injector for your Toyota 4Runner, it means that the injector has been restored to a like-new condition by a third party manufacturer. This typically involves disassembling the injector, cleaning and inspecting the components, and replacing any worn or damaged parts. The injector is then reassembled and tested to ensure that it is functioning properly.
It is important to use high-quality fuel injectors in your vehicle to ensure optimal performance and fuel efficiency.