2003 expedition alternator

[mrmanny44]

I had a 03 expo and I wanted to know is the alternator the same on a 4.6 and 5.4 engine. I have a 4.6 in mine

 

[stamp11127]

Any time you wish to check parts interchange, go to Rock Auto and check the part numbers between the two engines.

In this case yes.

RockAuto Parts Catalog

 

[mrmanny44]

So to be sure I'm correct you saying both 110 or 130 amp alternators will fit on the 4.6

 

[stamp11127]

As long as they are listed for both engines they will fit.