This is a working walbro 340 fuel pump with no issues that came from a otherwise stock we4 car.  The tank was super clean when I removed it  
Not sure how old it is, but if I had any doubts at all, I'da just pitched it.
It had the hot-wire kit installed, but I've already sold that.
the pick-up sock is nice and clean, and I'll include the insulator pictured.
$45 shipped to the lower 48.