I would attempt to stretch the NAPA one. Get a couple of screws larger than "it now is" and take your sender / sensor with you if need be to get the right size on. Maybe "let's say" chuck one in a drill, file/ round off the end to allow forcing into the connector
So far as sender/ sensor, we may have called them senders back then, as did the books, but in fact a sender IS a sensor, just different/ modern term. It "senses" temp and provides an output change