Well I have been repairing or re-manufacturing injectors for years. Certainly nozzles are only the tips of injectors but some people refer to the entire injector as a nozzle. Mostly I have heard that from parts shops as the sales guy doesn't have knowledge. Especially coming from John Deere pencil injectors manufactured by Stanadyne. As the years have gone by I have seen manufactures really trying to make re-manufacturing of injectors difficult and senstive to contaminated diesel. Nozzles get blocked up with dirt and specialised equipment is required to test injectors again once they have been stripped and reassembled.
