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#10
05-30-2001, 07:14 PM
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I'll reference a different Bosch plug; however, the naming scheme is similar.
M103 motors use H9DC or H9DCO The plugs with the "O" on the end have a slightly wider side electrode. It's been my experience that H9DCO plugs last a little longer than H9DC plugs.
__________________
Mike Murrell 1991 300-SEL - Model 126 M103 - SOHC "Fräulein" 
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