04 Impala alternator upgrade?

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Bob
Posts: 1006
Joined: Wed Sep 05, 2001 4:00 pm

04 Impala alternator upgrade?

Post by Bob »

I just picked up a 2004 Impala LS with the 3.8l V6. Before I start installing lights and radios, I'm going up upgrade some of the stock wiring. I'm also considering upgrading the stock alternator. Will a 125amp alternator from a 9C1 of the same model year bolt right up? Else, does anyone have any reputable sources for a higher-output alternator for that vehicle?

Any other hints or suggestions for the vehicle?
SlimBob
Posts: 911
Joined: Thu Dec 18, 2003 11:38 am

Re: 04 Impala alternator upgrade?

Post by SlimBob »

IIRC the stock alternator is 140 or 160A for all Wimpalas.
smk8er
Posts: 52
Joined: Sat May 08, 2004 6:26 pm
What radios do you own?: cdm1550ls, maratrac, Pro9150,

Re: 04 Impala alternator upgrade?

Post by smk8er »

This is a great forum, website dedicated to impalas. http://www.naioa.com/v2/
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007
Posts: 1546
Joined: Sat Nov 23, 2002 5:22 am
What radios do you own?: W7 FPP lowband MaraTrac w/AES

Re: 04 Impala alternator upgrade?

Post by 007 »

Bob wrote:I just picked up a 2004 Impala LS with the 3.8l V6. Before I start installing lights and radios, I'm going up upgrade some of the stock wiring. I'm also considering upgrading the stock alternator. Will a 125amp alternator from a 9C1 of the same model year bolt right up? Else, does anyone have any reputable sources for a higher-output alternator for that vehicle?

Any other hints or suggestions for the vehicle?
In case you didn't get an answer...yes, you can. The 125 Bosch alternator is a direct fit part on the 3800.
Do not make Sig angry...he'll just keep ringing the bell.
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chipjumper
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Joined: Thu Nov 21, 2002 10:14 pm
What radios do you own?: XTS5000 for work

Re: 04 Impala alternator upgrade?

Post by chipjumper »

When my 9C1's alternator blew out last summer I bought a used OEM from eBay for $22 shipped. It was the lower amperage one (105amps I think?) but I haven't had any problems EVEN with my 110w Syntor X9000 with siren. I run front strobes and everything else is LED. There is a noticable dim when I key up with the radio though but its 110watts lol.
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