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Old 06-05-2006, 10:07 PM
Senior Member
Join Date: Feb 2000
Vehicle: 2008 FORD F250 6.4D
Posts: 106
2005 F150 Alternator Help!!!!!!

I want to replace the 110 amp alternator in my 2005 F150 XLT with a higher amp output alternator. (Too many aftermarket add ons)
I cant seem to find anything for it. After some research I found that the 2005FX4's come w/a 130 amp from the factory. Will this bolt up to mine and work ok? My truck is the 5.4 3v.
The dealership cant seem to figure this out.

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Old 06-05-2006, 10:34 PM
Senior Member
Join Date: Aug 2003
Location: Susquehanna Valley, pa.
Vehicle: 1999 f150 5.4 xlt
Posts: 1,921
here is a great site for alt's


i think this is the alt for your truck. call to make sure though

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Old 06-06-2006, 06:39 AM
Senior Member
Join Date: Feb 2000
Vehicle: 2008 FORD F250 6.4D
Posts: 106

Actually thats a replacement for the 4.6 Mine is the 5.4.

I can get a great deal on the one from the factory through a friend at the dealer if anyone knows if what I proposed will work.
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Old 06-06-2006, 11:29 AM
Senior Member
Join Date: Oct 2004
Vehicle: 2004 Ford 150
Posts: 2,597
Are you sure of your amp size? I was looking at the window sticker for my 2004 STX and even though it came with no factory power options, it had a 130 amp alt stock from the factory.

Power drawing options I have added;
Power Mirrors
Power door locks
Remote Keyless entry
Keypad with it's own module
Alpine Amp
Clarion powered sub woofer
KW-AVX-706 monitor/dvd headunit.
Rear camera
Rear motion detector
Power seats
Power windows
Tailgate power lock
Tonneau power lock

And my battery is still where it should be, my voltage while running is fine even with all these new toys.
What the heck did you put in?

Last edited by ChrisAdams; 06-06-2006 at 11:31 AM.
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Old 06-06-2006, 11:29 AM


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