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?

 

Just replace the alternator.

 

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?

 

take alt apart their will be a number on them then check with a good parts house

 

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!

 

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.

 

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Alternator Pulley: Old part # 04861506AG is superseded by part # 4861506AH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

**Update**
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.