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Old 06-14-2019, 10:39 PM   #1
Trinity5
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Default Alternator Amps.

I need to replace my Alt. OEM Alternator Part #19152474. 1997 SW2 116CU DOHC. Threads say stock is 96 amps but OEM states 105. Does it matter ?? Also I believe I have a square socket. Can anyone confirm these specs. Thank you so much.
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Old 06-15-2019, 12:25 AM   #2
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1998 SC2
Default Re: Alternator Amps.

The ratings change over the years due to technological advances. The 105a has a fan and the 96a does not and these are the 97 vintage ratings.

What you have to figure out is this: is there a fan on the front of the alternator just behind the pulley or not? Top row first 2 alternators, one has a fan and one does not. You want the one that matches your present alternator then everything fits. https://www.dbelectrical.com/alterna...ive/saturn/sw/ This is also the best place to buy one. They also list on eBay.
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Old 06-15-2019, 11:51 AM   #3
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Default Re: Alternator Amps.

OK, I just looked at the alt. It has a small fan behind the pulley. The website for DB Electrical and they have one that they state fits the 1997 Saturn but it is a 105 amp. and it has the fan behind the pulley. Will this one be ok ? Thank you for the help.
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Old 06-15-2019, 12:00 PM   #4
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Default Re: Alternator Amps.

More amps is more better lol

Sounds like you can use the good '91-'96 style alternator, it has better cooling and more stock output than the '98-'02 style.

The exact amperage doesn't matter too much, it can change with the testing RPM though the earlier style by all accounts (96-105a) puts out 5-10 more amps than the later style (85-90a).

Napa used to list the VIN for the changeover (they might still but I hate their web interface), I believe it equated to a December/January timeframe for the '97 model year.
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Old 06-15-2019, 12:06 PM   #5
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Default Re: Alternator Amps.

Thank you. I feel better about buying it now. Hopefully it won't take me all day to install.
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Old 06-15-2019, 12:32 PM   #6
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1998 SC2
Default Re: Alternator Amps.

Watch this video and pay veery careful attention on which way to turn it. The one with the fan is larger than the one without the fan.
https://www.youtube.com/watch?v=iogtiYraHCg

https://www.youtube.com/watch?v=BdhCzA0NcDQ

Do not over tighten the alternator output battery terminal nut.

Disconnect the battery negative before starting the remove-replace project.
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Old 06-16-2019, 11:05 AM   #7
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Default Re: Alternator Amps.

Quote:
Originally Posted by Trinity5 View Post
OK, I just looked at the alt. It has a small fan behind the pulley. The website for DB Electrical and they have one that they state fits the 1997 Saturn but it is a 105 amp. and it has the fan behind the pulley. Will this one be ok ? Thank you for the help.
Either amperage will work just fine. Amperage is the RATE of charging. Higher Amps = Faster charging of battery/more load capacity of electrical systems

It also translates to more heat energy given off, which is why it has a small fan behind the pulley.

As a general rule of thumb: You want the highest amperage available, when replacing an alternator.
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Old 06-16-2019, 11:41 AM   #8
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1998 SC2
Default Re: Alternator Amps.

You do not want to attempt to install an incorrect alternator into a 97 as it is going to cost you about 20.00 to get it operating correctly. There are exactly 2 different alternators, they look different, just match your installed alternator to the correct picture.

If this is still confusing just take a properly focused and composed of the front of your alternator and post it here.

It is a 50/50 chance any parts store will sell you the wrong one for at least 2X the DB Electric price.
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Old 06-22-2019, 05:35 PM   #9
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Default Re: Alternator Amps.

Installed the alternator today and the car is back to running like a champ.
I bought a new one at: DB Electrical, Item Number: 8215 (dbelectrical.com)

It was $55.00, no core charge and free shipping. It also was a spot on exact match for my 1997 S series. My alt has the fan on it and a square plug.


Installation is pretty straight forward and if I did not run into a cross threaded bolt I had to saw off, this would have taken me about an hour, maybe less.
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