90 amp or 136 amp alternator? - Dakota Durango Forum
4.7L/4.7L HO/4.7L Gen II Engines Questions regarding the 4.7L V8 engine

 
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post #1 of 7 Old 02-29-2012, 01:03 AM Thread Starter
Bane
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90 amp or 136 amp alternator?

How do I know if I need the 90 amp or 136 amp alternator for my 4.7L V8 2000 Dodge Dakota...Thanks
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post #2 of 7 Old 02-29-2012, 01:29 AM
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136, 90 is way too small. You can check the alternator in your truck, it should say on it, but I'm pretty sure they never offered a 90 amp alternator.

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post #3 of 7 Old 02-29-2012, 01:58 AM Thread Starter
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I went to the auto parts store and they when they pulled up my motor it show two different alternators a 90 amp and a 136...the numbers on my alternator didn't come up in their computer...90 seems a low
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post #4 of 7 Old 02-29-2012, 08:55 AM
petrock
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If its not written on the alternator somewhere, contact your local dealer's parts department. They should be able to look up what came stock on your ride based on your VIN number. Good luck...

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post #5 of 7 Old 02-29-2012, 11:40 PM
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Garage
They should interchange, just get the 136 and as long as it physically mounts, you are good to go.

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post #6 of 7 Old 03-01-2012, 02:04 AM
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The FSM only shows the 136 amp for the 4.7, p/n 56041324AC

Nothing lists a 90 amp, even the 2.5 lists a 117 amp.
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post #7 of 7 Old 03-02-2012, 08:28 PM
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i've got a brand new in the box 136 amp replacement for sale right now if you are interested and haven't gotten one already. $95 shipped or make another offer. just need it gone at this point, let me know.

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