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3100/3400/3800 Alternator

Posted: Mon May 16, 2011 7:32 pm
by Alpinestar10
Looking for a newer style alternator the for 3x00 engine style the 3800 according to the guy at autozone and a local shop by me is the same anyone have one needing a rebuild or just a good one under 100 please

Re: 3100/3400/3800 slternator

Posted: Mon May 16, 2011 7:40 pm
by Kris GTwhat?
do you live in, near, or around a junkyard?

Re: 3100/3400/3800 slternator

Posted: Mon May 16, 2011 8:28 pm
by Slinky
I got one used for around 3 months from my 95' that i used last summer until i got a high output one,
I just dont have the pulley that goes on it which you could take off an old one ect.
its like brand new its yours for $65 shipped

Image

Re: 3100/3400/3800 slternator

Posted: Mon May 16, 2011 10:33 pm
by Alpinestar10
Kris GTwhat? wrote:do you live in, near, or around a junkyard?

I do but for what they want a rebuild would cost more then a autozone one. and dont want to risk it not working.
Tyler have anymore pics my bracket is the weird one that the alternator bolts onto from the back

Re: 3100/3400/3800 Alternator

Posted: Tue May 17, 2011 7:40 pm
by Slinky
I dont have a pic, but i know my alternator only works on 95+96 rettas
unsure about other cars, but the brackets are easy to swap

Re: 3100/3400/3800 Alternator

Posted: Tue May 17, 2011 9:35 pm
by beretta
that one looks correct for 3x00 engines.. My 3.1 L one is pretty much the exact same thing, but the bracket at the back sits into a piece that looks like whats on that alternator.



i got the 3x00 for free and its brand new. but couldnt make it fit my car, i was lucky and found a brand new one at the JY on the weekend and got it for like 10 bucks. but ill be saving the other one for the Z if i ever need it.


Left is a 3.1 L.. right is 3x00
Image

Re: 3100/3400/3800 Alternator

Posted: Tue May 17, 2011 9:36 pm
by Slinky
yeah the one i have is on the right

Re: 3100/3400/3800 Alternator

Posted: Tue May 17, 2011 9:39 pm
by beretta
i tryed to make the newer one fit my 3.1... if i trimmed the bracket on the car it could work.. it think its 100 amp probably slightly more then the one on my car now.

The one i just got from the JY for the 3.1 i put it on tonight and doesnt charge any different i think my gauge is just a bit wonky, stays just over half on the gauge. the one i just put on has a slightly larger pulley too, maybe will give me back a couple HP lol.

The 3400, engines i think have a larger alternator, might bolt on the same though as the 3100... the venture vans that have both power doors and head unit have a larger one then the ones without the extra stuff.

Re: 3100/3400/3800 Alternator

Posted: Tue May 17, 2011 11:30 pm
by Alpinestar10
well like i said this alternator bracket is off a 3100 grand prix so it bolts onto the brackets from behind so i dont think your will work tyler sorry i like the bracket more thats why im looking for this style alternator