Alternator amperage

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Colinyuk

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I was in the middle of ordering the usual replacement parts, (door lock actuators, window motors, ect ect) and I was going to replace the serpentine belt but dont know if I have a 105 amp or 130 amp alternator? Is there an easy way to tell?, and any advice on the subject would be appreciated.
Thanks
 

NoPh33rRaCiNg

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I was in the middle of ordering the usual replacement parts, (door lock actuators, window motors, ect ect) and I was going to replace the serpentine belt but dont know if I have a 105 amp or 130 amp alternator? Is there an easy way to tell?, and any advice on the subject would be appreciated.
Thanks

what year is your truck? most likely the 130 amp
 

blueflamed03

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Compliments to MikeTheApeMan

Check your glove box for these codes. I'm only listing the GM RPO's for alternators 100 amp or higher here.
8A7, KG8 - 130 amp
8A3, KW2 - 124 amp
8A5, 8C0, K98, KG9 - 140 amp
8C6, KG3 - 145 amp
8C7, KG4, KG5 - 150 amp
8W5, 8X5, K61, K62, K65 - 105 amp
8Z3, 8Z4, K60 - 100 amp
K09 - 120 amp
K63 - 110 amp
KG7 - 125 amp
KW1 - 160 amp
KW3 - 135 amp
KW7 - 170 amp
KW9 - 190 amp
KYU - 200 amp (
 

Dismay

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Sorry to dig up an old post, but had a quick question:
I know I have the KG8 code, but how can I find which ID number I have? Are all the 130 amp alt's interchangeable?
When searching the web I find a few part options including:

(130 amp), ID 10480390
(130 amp), ID 15750871
(130 amp), ID 15755900

Thanks!!
 
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Colinyuk

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those should all work, I ended up replacing mine with a 220 amp one out of a hd truck
 

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