I have a noisy bearing in my 2004 Crossfire alternator.

Is there an easy way to ID the alternator manufacturer (Bosch vs. Valeo) without removing it so I can order one and replace it whe I have the parts in hand?

 

This might help and then maybe not. Call a chrysler dealer and give him the VIN No. of the car and he may be able to tell you. JMO

 

Might be better to go visit the service department. These type of questions tie up phones and people and sometimes they are 'busy'. If you give em 'face time' you can better gauge if they want to help or not. It takes a while to see what alternator is in what car. Having the VIN and asking them 'how much is the replacement OEM alternator' or is there a 'repair kit available for a DIY' for your alternator will give you part numbers or kit numbers that would help you fix it. During giving/taking information you can ask who made it. Thats what I do and I rarely buy from them and always get the info I need.

Good luck on finding any bearing info though, I've never heard of anyone replace a bearing in an alternator. Sourcing it may be a huge problem. Removing/replacing it may be harder. Good luck!

 

I have come to the conclusion that the mounting of the two may be different somehow. I am not sure how though, I will research this further.
Edit
It may be the wiring is different somehow.

 

Thanks guys.

I was trying to ID the manufacturer so I could order the correct alternator (not just a bearing) and have it ready in hand.

Rock Auto has the Remy# 94119 listed for Bosch replacement on the Crossfire but doesn't say anything about the Valeo in that particular listing. I thought that they were not interchangeable because all the re-man items list them by maker, as if you need to find out which one you have and replace it with the same brand.

BUT I just looked up 2004 SLK320 they list the Remy 94119 for Bosch & Valeo both!

What is all comes down to is: can I order a Remy 94119 and have it fit no matter which one is on my car right now?

 

according to Remy ( Product Detail - 94119 BOII New Alternator | Remy )
it will fit.

Applications
Chrysler
Crossfire
2008 3.2 Liter V6 - 3200 CC, 195 CID
2007 3.2 Liter V6 - 3200 CC, 195 CID
2006 3.2 Liter V6 - 3199 CC
2006 3.2 Liter V6 - 3200 CC, 195 CID
2005 3.2 Liter V6 - 3199 CC
2005 3.2 Liter V6 - 3200 CC, 195 CID
2004 3.2 Liter V6 - 3200 CC, 195 CID

 

The wiring connection is different, see this post.
https://www.crossfireforum.org/forum...tml#post686851

 

I agree with 180, there are a number of posts relating to two different alternators. The application charts are just too filled with errors when it comes to these expensive parts. Keep looking in the posts, some have pictures and a detailed description. I remember them but have no clue where they are. As a footnote, I misunderstood your OP, I thought you were trying to replace the bearing only, my bad! Also, I understand it is a capital PITA to get to and replace that alternator.

 

I finally changed the alternator.

The brand new (ex-Delco) Remy alternator P/N 94119 ($200 from Rock Auto) fit almost perfectly, the only hitch was very minor. The plastic cap on the battery wire attaching nut not does not fit. The big weird shaped end on the battery wire fit the new item just fine even though the back of it (regulator housing) looks a little different. It is made in China but everything visible seems OEM quality. The Remy box brags that they supply these things to the car manufacturesrs themselves, so maybe it is at least American car OEM quality. Time will tell if it was a better choice than re-built.

I also changed the belt, tensioner and idler. After much thought I bought Dayco parts listed at Rock Auto. The Idler is made in Germany (bearing had the same markings as the M-B marked item I took off) and the Korean made tensioner seems well made and has a metal pulley. The belt was made in America!

 

My SRT's alternator has literally just died today! Grrrr, copper coils inside aren't turning when the car is running so I'm guessing a bearing has gone inside or sommat, stupid thing! I've noted now the part numbers you guys have supplied but does anyone know the mb oem part number? Coz thankfully my girlfriends brother works for mb . Cars who needs em! :P

 

If those coils are turning you are in serious trouble as your car will be doing a barrel roll. They do not move.
There are two slightly different alternators used on these cars, so the correct part has to be selected. The difference seems to lie in the plug that attaches to the back somehow.
The parts are Valeo and Bosch, according to this post the wiring can be altered to suit your car.
How do you know it's an alternator problem?

 

Oh right well that's embarrassing, just shows my knowledge of car engineering is rubbish. But the part number of the oem alternator would b a great help. Ok thanks was just typing as you edited. Cheers I'll have a browse.

 

The list price for Mercedes alternators is, sit down before you read any farther ....... $950 for the SLK320 and $1,500 for the SLK32. These prices are from a MB price list on this forum.

Any discount you get may be not enough to make it more worthwhile to get a Valeo or Bosch part from someplace else.

 

Omg! I just don't understand how they can justify charging that much for a part which costs 1/4 of the price they are charging. I think I'm going to go with the Bosch, I'll probably get a reman one too which will save me plenty. I've been trying to find some in the uk to cut out shipping costs but didn't have any luck. Thanks for the pricing though, it will make me feel really good paying just a fraction what mb are charging.

 

You still HAVE TO make sure of the correct part number! The two models are different and the wrong one will cost you time/effort/money!

 

Never answered the "why do you think you need an alternator" question. Could be battery etc.

 

From my research this is what the alternators look like.

Valeo
Chrysler part#5135465AA (part shown is for the SRT6, with the 8 rib pulley)
According to the parts list SRT6's only came with the Valeo alternator. (This is probably wrong[?])

Bosch
Chrysler part # 5097756AA
NA's came with Valeo or Bosch alternators according to the parts list.

My SRT6 has the Valeo.

The Bosch picture does not show too much and is probably upside down to the one in the car. But the casting shapes of the bodies are quite different. The Bosch site mentions the Chrysler part 5097756AA.

The Valeo has slots in the rear plastic cover going length wise.
The Valeo pics are from all different angles, but upside down to the way it is in the car I think.

The attachment of the wires to each alternator is slightly different so it may be simpler to get the correct replacement to match the cars hard wiring.

 

Maybe his is dirty - some of us can't stand a filthy engine !

Maybe that's why so many Crossfires have less than 10,000 miles on them.





Ok, sillyness aside, unless there is something physically wrong with the alternator, there is no need to replace it if it passes the following test:

1) Measure the battery voltage - should be 12 to 12.8 volts.
2) Start the car - measure the battery voltage again - should have risen to over 13 volts.
3) Have someone rev the engine to 2000 to 2500 rpm and hold it there - measure the battery voltage - should be close to or just over 14 volts, even with lights, heater fan and other stuff running.

If you see these rises, the alternator is charging just fine. If not, it still may not be the alternator, check all connections at the alternator, starter, battery and don't forget the battery ground cable where it is bolted to the chassis just ahead of the battery itself.

 

Well to be completely honest with you I'm not 100% positive it is the altinator, the main reason I thought it was that was because the car was starting fine at first when I saw the battery charging system indicator light then a few starts later it started to sound more laboured and my headlights became dim, at this point I decided to stop driving it as I didn't want to get stranded in the outside lane of a motorway. But when I get a chance and the equipment I'll try what pizza guy suggested and get back to you fab lot. Thanks for all ya help. Oh I almost forgot!! My engine bay is salty atm because of all the rock salt they've been putting down to free the roads of ice but trust me when I say it will be spotless once I'm done with it