here's a whole bunch of MB nozzle part numbers for the 617.912, none of which resemble what you orig posted.
If you are reading them from the nozzle they are prob vendor numbers rather than MB.
Try looking them up on Bosch's site.
http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=123130&M=617%2E912&GA=722%2E118405&GM=716%2E005++++++++++++++717%2E400&CT=M&cat=143&SID=07&SGR=105&SGN=03
__________________
Terry Allison
N. Calif. & Boca Chica, Panama
09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)
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