Trying to choose the correct alternator for a 2008 Mercedes S550 4matic

What is the difference between a 4matic alternator and a base model alternator for a Mercedes S550 4matic other than the difference in amperage

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CarCarePros made a comment.
1 year 1 month ago

I don't think that there is any difference. It is the same egnine M273. Yeah the amperage may be different but other than that it should fit. If you are very concerned, call the dealer and get the part number for the orginal alternator installed on your car. Then you can compare the specs of that with the one that you are trying to buy.

 

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