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Will a 4.6 alternator on a 6.8 V-10?

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Old Dec 1, 2025 | 12:24 AM
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Will a 4.6 alternator on a 6.8 V-10?

Will a 4.6 alternator bolt onto a 6.8 V-10 (give or take pulley size requiring a different belt) ?

Thanks!

 
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Old Dec 1, 2025 | 07:56 PM
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Try that again. Be sure to include year model, etc.
 
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Old Dec 3, 2025 | 11:31 PM
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Good point!

Will a 1999 4.6 alternator from any model that has a 4.6 in 1999 bolt onto a 6.8 V-10 (give or take pulley size requiring a different belt) from any model that has a 6.8 in 1999?

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Old Dec 5, 2025 | 06:07 AM
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Yes it will. They had two different alternators, a 95 amp and a 130 amp. If you get the same amperage, it should bolt right up. If you go up or down in amperage, not sure it will fit.
 
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Old Dec 5, 2025 | 06:14 AM
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They should swap even with different amperages.

I have a 130a I plan on swapping in place of a 95a version…everything that matters looks the same. Not that there aren’t basket cases, but pulleys can be swapped.
 
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Old Dec 5, 2025 | 09:13 AM
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Originally Posted by Johnny Paycheck
They should swap even with different amperages.

I have a 130a I plan on swapping in place of a 95a version…everything that matters looks the same. Not that there aren’t basket cases, but pulleys can be swapped.
I didn't know if one was externally larger than the other one. Either one was a option on both engines though, f150 up through f350 at least.
 
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Old Dec 14, 2025 | 12:45 AM
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Great, thanks for the responses!
 
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