To my knowledge, Monarks have not been available for a few years. But most of us know there was a contract-based production run by Wolfswerke-sachsen that were recently sold (and branded) by Mercedes5ource. I just learned they are all sold out of those #120 nozzles for the 617.

Well, apparently Mercedes5ource is now selling their stock of new Wolfswerke-sachsen #128 nozzles -- which were originally made for 60x engines -- as being compatible with 61x engines as well. It's on their website, along with a video showing some bench testing.

Thoughts on this? True that the injectors fit in the older 617 holders, and the pop pressure seems similar, around 1900 PSI. But I'm a little hesitant. Would you try them in your 617?

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-1985 300TD - 324k mi on chassis. MB "Tauschaggregat" 617 motor + 4-speed conversion
Alaska Roadtrip 2009
-2002 E320 Wagon - 197k mi
-1998 E320 Wagon - 310k mi - retired