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Old 01-20-2013, 11:47 PM   #1
bL.A.zer90045
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Alt upgrade resistor part#????

I'm needing the parts number for a alternator upgrade connector/resistor for upgrading my 85 amp alternator on my 86 k5 to a higher output one that I'm upgrading(using a 92 c10 serpent set-up).I got the number from this site before but misplaced it?!?! PLEASE help,thanks
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Old 01-21-2013, 02:42 AM   #2
Daze57
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Re: Alt upgrade resistor part#????

if it is just the resistor you need According to the experts, the resistor can be any size between 35-Ohm (5W) and 500-Ohm (1/2W). at Radio Shack # 271-1113
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Old 01-21-2013, 03:48 AM   #3
bL.A.zer90045
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Re: Alt upgrade resistor part#????

Yeah it's a pigtail sort of thing that converts your old(85 amp)alt conn on one side to the newer higher output(105 amp I believe) alt and has the newr conn on the other end? I know it was a napa auto part? Not sure if "resistor" is the correct word? Thanks for the follow up though.anyone know what I'm looking for?
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Old 01-21-2013, 01:29 PM   #4
Daze57
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Re: Alt upgrade resistor part#????

BL try this

Adapter plug is available, without a charge light (as in my case) you need an adapter harness with a resistor built in. This is Echlin Part number (Napa) EC82. Apparently AC Delco, Autozone, nor Checker/Schucks/Kragen can cross reference this part. The part numbers normally mentioned Delco P/N 8078 General Motors P/N12102921 appear to no longer be valid, none of the above listed could cross them, they don't show up on AC Delco.com, gmpartsdirect.com, nor can my local GM parts counter find or cross them. Carquest S792 "connector".
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Old 01-21-2013, 05:35 PM   #5
VetteVet
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Re: Alt upgrade resistor part#????

Here is a website that shows how to wire in the resistor and all you need is the plug for the CS alternator. The pre made adapters are around $30 dollars.


..........http://temp.corvetteforum.net/c3/zma...ternator01.htm
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Old 01-21-2013, 08:10 PM   #6
bL.A.zer90045
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Re: Alt upgrade resistor part#????

That what I need!!! You guys are awesome!!! Yeah my local napa has it,picking it up tomorrow.thanks again
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