I forgot to mention in my original post that the filter didn’t come in a typical Napa box, but instead came shrink wrapped.
I emailed the provider and asked about the COO and also about the packaging. I received an email back almost immediately, here is their statement:
“Yes, although I would say around %90 of Napa's filters are made in the US ever since Mann + Hummel bought out there filter division a year ago some of the filters now (mostly air filters) but some oil filters are imported. They also still make those 1042's in the US but it just depends on which batch I get when I order them. The reason there was no Napa box with your order is because it is more cost efficient on my end when shipping some products to Amazon. The imported filters are made with the same specs as the ones in the US. Side note: you're the first person to ask about that and im surprised it has not happened more often.”
Still curious to me that nobody else has seen this COO.