This is my first post and i hope to be able to contribute some knowledge in the future. In going about the diy cooling overhaul I came across a new fan clutch by sachs ordered from autohausAZ. It seams to have battery like corrosion? on it. Does anyone know if this is fine or should I return this? BTW I have replaced the expansion tank water pump, thermo, aux fan switch. Radiator and hoses done previously.

thanks
Adam

This was the reply from the vendor, I'll just brush it off and install
Hello Adam,


I have seen this before, but I went and inspected 3 in our warehouse. This is normal procedure in the manufacturing process. Please let me know if you have additional questions or concerns

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