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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

95 amp to 130 amp alternator

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Old Jun 16, 2021 | 08:38 PM
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95 amp to 130 amp alternator

I need a new alternator in my 1995 F-150 5.0L. It currently has the stock 95 amp alternator (I am assuming). Wanted to do a little upgrade on it and I found a 130 amp alternator made for a 1995 F-250 7.3L. It looks like the same exact alternator. They are both 3g alternators. Can I upgrade to the 130 amp alternator? Also, if I can use the 130 amp, do I have to upgrade the wiring from the alternator to the battery?
 
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Old Jun 16, 2021 | 11:23 PM
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My first 130 I upgraded to I grabbed out of a 95 E-250/5.8 cargo van in a JY. Bolted in, plugged up the 95 amp original factory wire & went about my business.

Several years on when the bearings started getting noisy, I ordered a new Motorcraft unit for the same application.

No personal experience with the diesel applications, but if it's side mount, you should be able to plug & play.

One of these days I do plan on upgrading the harness.
 
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Old Jun 17, 2021 | 12:02 PM
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On my '96 F150 with 5.8L, I swapped the stock alternator with the 130 amp from a '96 E350. Same as Scndsin: bolted in, done. I do have a winch, that was my motivation.
 
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Old Jun 18, 2021 | 02:55 PM
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I did the same as Scsdin. I did upgrade the wiring though. It's only 6 or 8 gauge wire from the factory?? I put 2 AWG and a 175 amp megafuse between the alt and battery. Easy to do.
Done it to all 3 of my trucks.
 
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Old Jun 18, 2021 | 06:32 PM
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Originally Posted by timbersteel
I did the same as Scsdin. I did upgrade the wiring though. It's only 6 or 8 gauge wire from the factory?? I put 2 AWG and a 175 amp megafuse between the alt and battery. Easy to do.
Done it to all 3 of my trucks.
​​​​​​Can you post a picture of the setup?
 
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Old Jun 18, 2021 | 07:16 PM
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Will do here shortly. Have to wait for my little ones to go to bed.
 
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Old Jun 18, 2021 | 09:32 PM
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Here are a few pics. It's dark, but I tried to get some good pics of the wire, megafuse, and battery.









I hope this helps. It really easy to change everything and there is no bottleneck from the factory 8 gauge wire with fusible link.
 
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