Mystery Part? Fuel pum relay??

[4x4attitude]

Long story short: my late grandpa was a mechanic and had moved some stuff to the house he was buying. I was rummaging around and found something for a ford vehicle. I did some digging on the net and I THINK its a fuel pump relay.

My question is can anyone tell me what this is, for sure? Its black on the top half and green on the bottom half. It has 4 male parts of a plug. The part number stamped on it is E3TB-9345 A1A//9FA.
Also... if anyone knows, can this be used in a 92 F150 4.9 liter, straight 6?
Thanks guys and gals.

 

[BrooklynBay]

It's a fuel pump relay. http://www.google.com/url?sa=t&rct=...n0FOVJY6OwbKg5n6Q&sig2=PCvldgY_RKuQMuU5LLf63w

 

[4x4attitude]

I found that forum link shortly after I posted my question. Thank you regardless for responding
Would you happen to know if it would work on a 92 f150 straight six?

 

[2000StreetRod]

Standard Motor Products RY116

According to Rock Auto's data base the relay you have is equivalent to Standard Motor Products RY46 used on a 1987 F250 with the 4.9L inline L6 engine and the one for a 1992 F150 is Standard Motor Products RY116. They do not appear to be interchangeable.