Mercedes V8 or V6 spark plugs Bosch platinum
These are for pretty much any Merc pre 2007. I believe it's for the m113 and the m112, generally for the 2 spark plugs per cylinder.
Part number fr8dpp33
Usually looking at $320 for a kit of 16 (for the V8) but I work on alot of mercs so get them a bit cheaper, I'm making $10 a kit,. But usually a constant supply so I can sell them at this price. Obviously price isn't negotiable
V8 kit is $180 (16 plugs), V6 kit $150 (12 plugs)