just picked up a new fuel pump for my electric system since old one took a dump. Went and got a '00 Suoper Duty pump. Question is which end is inlet which is outle? No arrow on pump. My old pump was a Walbro and it had markings for in/out. I am going to assume the end with the power terminals is inlet since that's the way the old pump was just need to majke sure.

 

End with terminals is on the outlet side of the pump.

 

thanks after looking at the old pump it is the same flow as the SD pump I got don't know what i was thinking