If an injector is sold as Lucas or Bosch, does that mean just the nozzles are Lucas or Bosch or is the entire injector made by the manufacturer?

I have seen both for sale as remanufactured- either Lucas or Bosch.

It seems strange that MB would have had two separate manufactures for such a short run on an engine.

I need to do something about my nozzles soon as I have a lumpy hot idle developing. Given that Monarch and Bosio are apparently (still) unavailable at this present time, I'm going to have to go for the dealers crappy 'made in India' version of nozzles, which I'm sure will last 25-50k miles before they crap out.

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1995 E300 Diesel