well, my opinion is, you get what you pay for.

you pay cheap for import no name stuff, you have a very good chance it will
not fit without modifications.
you pay for a name brand, and it is a drop it in and be done with it.
for this reason, i buy name brand, and leave the cheap stuff for others.

Thought I'd save a few bucks a couple years ago by replacing a rad
myself.....ordered the OEM part and stuck it in with no problem.  But it
failed at 14 months (with a 12 month warranty).

So I let my corner mechanic replace it ---- don't know where this one
was made and don't care ---- his parts vendor backs it with a 36 month
full replacement warranty.

Which is exactly the opposite f what *I* do. Autogroan can keep their
"lifetime" warranty, which really only means that I'll spend the rest of
my lifetime swapping out their crappy parts.

I get things like starters and alternators rebuilt locally. It costs
about the same as a part-store rebuild, and it only comes with a 30-day
warranty, plus its about a 1-day turnaround so you have to do without
the part for a day. But you know what? I've *never* had to replace one
of those parts again.

For stuff that isn't locally rebuildable, then I shoot for the highest
quality part I can find, warranty be damned. IN general, I find that the
crappiest parts tend to have the most impressive warranties. They're
gambling on people losing the paperwork and/or just getting tired of
swapping parts.