Alternator swap info

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CdnDenali

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Looking to upgrade/swap my 130amp alternator for a higher output unit. Cant seem to find any info. Not wanting to go aftermarket. From what I have gathered so far is, the biggest I can go is 160amp and they are found on the 2001-2006 HD's and belt replacement (bit longer belt), strait plug and play?? Any comments or advise is welcome
 

massivespl

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Contact excessive amperage for your alternator needs. I have four 350s alts from them.they can make you whatever size you want.

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massivespl

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Lol just read your post about not wanting to go after market. Carry on

Edit: life time warranty on excessive amperage FYI
 
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CdnDenali

CdnDenali

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Really no input?? Thought this was the place for GMC/Chevy info...
 

Tonyrodz

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I swapped in a 160 amp into my 03 Tahoe a few months ago. Originally had the 130 amp. Straight plug and play. Used the same belt. No modifications needed.
 
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CdnDenali

CdnDenali

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Are those 160amp only found on Special Service Vehicles? Thought I read somewhere, an alternator out of a HD 2500 was plug and play but with a different belt size.
 

mals

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Are those 160amp only found on Special Service Vehicles? Thought I read somewhere, an alternator out of a HD 2500 was plug and play but with a different belt size.
My '05 Denali with a 6.0L came from the factory with a 160amp. As far as I know I have the same LQ4 engine that was installed in the HD 2500s.
 

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