Engine identification

This is a 3.0L Flex-Flex fuel V6 engine in my 2002 Ranger XLT. Searching the internet, I've found there is a Duratec engine and a Vulcan engine that was available in 2002 (2001?). However, the pix don't jive with what I have.
On the left (passenger) side valve cover, it has 3.0L V6 on it.
Actually, trying to find the oil pressure sending unit. I have an oil pressure gauge.