Any input as to what "Rock Auto" alternator to choose as a replacement? There are a few to choose from and I have no idea. Here is the link:

https://www.rockauto.com/en/catalog/...generator,2412





Thanks for any suggestions. DAG

 

Different features required different alternators.
Your best bet is to take your old one and get the exact replacement.
Some others may fit, but if the alts are the same except for a cheap one vs a good one a good rule to keep in mind is , "You usually get what you pay for."

 

Thanks-
Any idea whether it matters if it's 110 amp or 135 amp, as in will it make a difference one way or the other? The only difference I see in the descriptions is "with navigation" or "without navigation" and mine does not have navigation.

 

The manufacturer usually installs an alt capable of maintaining sufficient sate of charge under most operating conditions. Of course the higher output alt costs more to install, but if it is not deemed necessary, there is a cost savings. Multiply that by the number of vehicles and the savings add up. You probably could install the higher output alt and it would help if you installed any addl equip that consumes addl power. Don't forget the addl output requires addl load on the engine if the load exceeds what the original alt was designed to put out and now it could use more fuel. All these factors come into the picture. The electrical system is designed to maintain a certain state of charge with the original build and the wiring is designed to handle full output for a reasonable amount of time. The wiring system is not designed to charge dead batteries or excessive loads for a long period of time and the higher output could put some stress on the wiring if high demand was to last for a long time.

 

That's a good piece of information you just have shared! It is always good to install compatible rating parts.