Lly alternator

Big Chris

2 Duramaxes> 1 Duramax
Mar 30, 2010
361
1
18
46
Rives Junction MI
Well after 10 years and 228,xxx miles, I think my alternator's days are numbered. My question is: I have the single alternator. Which one do I need? The 105 amp or 145 amp. I have the window sticker and there was no mention of alternator's on it. For some reason I thought it had a 145 on it and the 105's were used in dual alternator optioned trucks. If they are interchangeable I'll get a 145 because it would keep up with the snow plow better. Thanks
 

rg3whitelbz

New member
Jan 19, 2013
166
0
0
Maryland
I copied and pasted the following from a bookmarked site when mine went out...
Look in your glove box for RPO codes.
K68 105AMP
8X5 Duel 105AMP
KG7 125AMP
KG8 130AMP
KG3 145AMP
KW1 160AMP