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New Alternator Suggestions- 2002 F350 7.3- What Do You Think?

12K views 18 replies 10 participants last post by  doubleslottedflaps  
The factory wiring can handle the 135/140a Bosch alternator without problems. Ford's sizing has worked for up to 180a alternators as long as the continuous current flow is not at the max for long periods. And the only way to do that would be a winch or very, very high amp sound system.

I've often recommended that NEW Bosch unit for the 7.3L and 6.0L. On occasion, they can have an early issue, but it's not a high percentage. In the online world, two failures out of a thousand are a crisis. They definitely have a great warranty when you buy through the right sources. Like all products, the manufacturer can get hard-nosed when something is bought through a non-authorized retailer.