Location of the duct.

Path I used to run the duct. Different routing may be needed depending on obstructions and the space available.

This is working for me and extended the life of the current Alternator. 6 of them have fail over the time we have owned the coach. Like 1 every 2 years and some years we have traveled more or less then others.

How much longer ? I will add that information as time passes.