Im looking to replace my alternator but wan't sure if I should just pick up a replacement at Autozone or one in the classifieds? Are there any better alternators?

 

I went through Hite Parts Exchange. No core/good price.
Several years ago, I bought directly from their outlet. Now, I see that they deal through Ebay.

 

I just got a NEW, not rebuilt A C delco alt. from rock auto for 139$ plus shipping. By far the best deal for a new f body alternator that I could find.

 

WHAT?? ...........not A word about the truck alt upgrade??? fer shame fer shame.......

 

Yep, truck alternator

 

Are the truck alternators a direct swap? No fitment issues and do they have more amps?

 

WHICH truck alternator (actual part # please), and are they available in Delco/Delphi through Rock Auto as well???

 

The part number is going to change depending on brand. Just go to any local parts place or rockauto for acdelco and lookup the alt for an 01-04 denali or escalade with the 145amp option and you'll find it. I'm running a rebuilt from autozone now and it's great direct bolt in

 

truck alternator here as well. I don't remember the part but there is a thread on here about it. I think the title was alternator fix or something of the sort

 

https://ls1tech.com/forums/generatio...-failures.html

stikees are your friend

 

this is the best upgrade i ever did (almost, cam is best), even at idle my stereo does not dim the lights any more.

 

Here's another...145 amp/Brand New/ 100% Positive Feedback/Free Shipping/$109.80
http://www.ebay.com/itm/Alternator-LS1-CHEVROLET-Camaro-Trans-AM-145-HIGH-AMP-1998-1999-2000-2001-02-5-7-/130892934574?pt=Motors_Car_Truck_Parts_Accessories&fits=Year%3A1998%7CModel%3AFirebird&hash=item1e79d3adae&vxp=mtr

 

Try and find a local alt shop that can repair the one you have.

The shop I use repairs are normally about 70% less than a new parts store piece.

Tim

 

The general part number that is used is "AD244" with the 4 wire connector.

I got one for my engine rebuild because my old alternator wasn't up to par. Have tried rebuilt and high power alternators and they all pretty much sucked. Hopefull the truck alternator will do better.

 

Found the ACDelco PN if anyone is looking for this "upgrade" #321-2128, as stated above it's listed for a 03-04 escalade and has an rpo code of KG3. With the 4 pin connector. Cheapest I've seen so far is $250 from summit.

 

old thread dig !

I believe that P/N is for a reman alt......

 

Sorry to revive an ancient thread, I found on the AutoZone site the following and wanted to confirm (used the quoted P/N and RPO for the 145-AMP version).

https://www.autozone.com/batteries-s...21881_552733_0

This online calculator (apexcustoms.com/car-audio-calculators) is outputting 62.5 Amp required on 14.4v DC draw (peak?) just for amps, not head unit and usual car consumption needs (ECU, AC, Lights, etc.) which is over the stock 102 Amps and 12v DC alternator.
Looking at this the "Truck" alternator is adding 43 Amps above the stock (for a total of 145 Amps), not sure this would be able to absorb the 62 Amps?
The current, 7/13/2020 Autozone price is $414, the high outputs I found Texas Speed and Performance has a 240 Amp alternator (#159-8206240) and priced at $350 specifically for LS1 applications and the 2002 Trans Am is listed as a vehicle it will fit (they also have 270 Amp and 370 Amp models). This is a 100 Amp increase for $150 less!
I found PurePower makes a 250 Amp alternator (250AMP PurePower Hairpin High Output Alternator Chevrolet GMC Trucks 1996-2016), currently on sale for $300 at Phoenix Alternators.

The one thing I don't like on the PurePower is it seems to not "kick-on" until >1,000 rpm, the Texas Speed "kicks-on" at 850 rpm. Would this mean at idle all the power is draining the battery with PurePower? Both have the 4 pin rectangular plug.
The Texas Speed alternators are listed as for racing only and not street, not sure if this will be a problem???

 

Best is gunna be a bad boy Mechman