Is one familiar with "Standard Motor Products Inc" products and or the Crankcase position sensor? If so what was the performance of the CPS?

For my 98 ML320.

Correction on the part name. I'm sure all knows what I'm speaking of.
How are "Wells" parts?

I doubt that they would "tool-up" to make a part like that. I would think that they would have a purchase agreement with Bosch OR Hella (AB Electric).

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Thanks DOC,

That's reassuring.