alt napa premium or bosch?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=99868
Printed Date: May 14, 2025 at 8:39 PM
Topic: alt napa premium or bosch?
Posted By: jmelton86
Subject: alt napa premium or bosch?
Date Posted: December 10, 2007 at 11:09 PM
I've come to the conclusion that my alt is going out -due to alt whine. I plan on swapping it out to see if that's the problem. It'll be a factory-replacement, as I can charge it to my account (it won't seem like it's coming out of pocket, at least until my check comes in...). 105amp. What do you recommend, Bosch or NapaPremium? The Bosch is about $5 less, but the Premium is in town. The Premium claims the recifier diodes are 50amp instead of the factory 35amp, and the rear bearing is 10mm instead of factory 8mm. The Bosch doesn't say. ------------- 2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001
Replies:
Posted By: Alpine Guy
Date Posted: December 11, 2007 at 10:52 AM
Neither, get a real alternator that can actually support your system.
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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.
Posted By: jmelton86
Date Posted: December 11, 2007 at 6:27 PM
It does the job. I've been running this 12year old alt like this for awhile with no light or voltage issues. ------------- 2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001
Posted By: jmelton86
Date Posted: December 11, 2007 at 6:32 PM
Oh, and to mention. I don't use any accesories when i've got my volume up, so i'll stay away from a $250+ HO alt for now.
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2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001
Posted By: dwarren
Date Posted: December 11, 2007 at 8:33 PM
I would get the one with the longest warranty, considering they are very similiar in specs.
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Posted By: jmelton86
Date Posted: December 11, 2007 at 8:37 PM
Sounds good to me. Thanks.
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2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001
Posted By: jmelton86
Date Posted: December 11, 2007 at 8:41 PM
Oh, and are the higher rated diodes (50amp instead of 35) going to do anything? Maybe increase efficiency? ------------- 2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001
Posted By: dwarren
Date Posted: December 11, 2007 at 8:44 PM
jmelton86 wrote:
Oh, and are the higher rated diodes (50amp instead of 35) going to do anything? Maybe increase efficiency?
That I can't honestly answer, but an educated guess would lead me to believe they are more durable? -------------
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