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Old 11-02-2007, 02:45 PM
Join Date: Nov 2007
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Default Alternator Bearings Replacement

Hi. I need to change the alternator bearings onmy 2004 Pacifica but it has been very dificult to get thespecific part number or bearing dimensions. Can anyone help me?
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Old 11-03-2007, 10:33 PM
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Default RE: Alternator Bearings Replacement

Just replace the alternator.
Master tech in automatic and manual transmission.
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Old 11-05-2007, 07:19 AM
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Default RE: Alternator Bearings Replacement

Thanks for the tip Master Tech. But, if you can fix the problem with $30 - $45 instead of $200-$250, will you consider changing the bearings firstor not?
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Old 11-05-2007, 07:32 AM
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Default RE: Alternator Bearings Replacement

take alt apart their will be a number on them then check with a good parts house
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Old 02-12-2012, 02:52 PM
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Did you get the bearig numbers for the alternator? I need to replace mine as well and would like to get the bearings before tearing into it. BTW I agree with orginal post, I was quoted $260 for the alternator, why spend this when the bad parts are $10-20? "just replace the alternator" is a great solution if you're spending someone elses money!
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Old 02-13-2012, 07:38 AM
Join Date: Feb 2010
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I think it would be difficult to replace the bearings only, but you may want to consider replacing decoupler pulley on the alternator. The mopar part will run you around $60 but RockAuto has goodyear brand decoupler pulley for $42.

I will post mopar part numbers later when I get to my other PC.
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Old 02-13-2012, 08:41 PM
Join Date: Feb 2010
Posts: 91

Ok, following are the parts number for alternator & alternator decoupler pulley for 2006 3.5L Pacifica. These part numbers may apply to other model years with 3.5L engine.

Alternator Pulley: Old part # 04861506AG is superseded by part # 4861506AH

Alternator: 4868760AH (160 Amp) or 4868760AF (145 Amp)

Ok so my alternator was making grinding noises (2006 Pac 3.5L). I considered replacing the alternator but then decided to 'fix' it, just for experience. I bought a decoupler pulley ($50 - Gates brand), removed the alternator from the vehicle. When I removed the pulley cover, there was lots of rust inside and pulley was obviously damaged. I tool the alternator to a local alternator shop and asked them to put new pulley on & replace the bearings. It cost be $35 and grinding noise is gone, for now. I'll be happy if this fix will last 50,000 miles.

Last edited by Raindrop; 03-17-2012 at 04:09 AM. Reason: Just finished the alternator job.
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