Can I swap a 2003 caravan alternator into a 2011 caravan?
Oct 9, 2023 at 5:08 PM
Alternator swap?
2011 DODGE CARAVAN
SICKLOVE
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Photos of both appear to be the same, but the part numbers are different. Even though you didn't list engine sizes, those will be different. The '03 had either a 3.3L or the larger version, 3.8L. The 2011 only had the 3.6L available. That's a different engine stye, but from the photos, it looks like the mounting brackets are the same for both applications.
Chrysler has a history of very good parts interchangeability between years and models, so it wouldn't surprise me if you can use an alternator from an older model. Be aware one place where you can run into trouble is when you install a replacement that has a higher maximum capacity than the one that came from the factory. No alternator will ever develop more current than is exactly what is needed by the electrical system, so it doesn't hurt to have one with a larger capacity, except under one condition. That is when the charging system is being tested with a professional load tester. Those will draw the maximum possible current for just a few seconds, but that can be plenty to blow the fuse or fusible link wire that protects the alternator's output circuit. When various optional current ratings were offered, the fuse link was selected that matched the alternator being installed. If you install a replacement alternator that has a lower maximum capacity, nothing will happen. If you install one with a larger capacity, it can exceed the rating of the fuse device when put under the full-load test.
Replacing fuse link wires is a tedious job that usually never needs to be done in the life of the vehicle. Those act like a slow-blow fuse. They often hold up for the few seconds the full-load output current test takes. A lot of newer models use a regular fuse, but due to the high current rating, they're bolted into the fuse box since regular plug-in terminals can't handle the very high current. Those blow very quickly when current goes too high. Those are much easier to replace, but they still take some time as they're not a simple plug-in fuse.
Chrysler has a history of very good parts interchangeability between years and models, so it wouldn't surprise me if you can use an alternator from an older model. Be aware one place where you can run into trouble is when you install a replacement that has a higher maximum capacity than the one that came from the factory. No alternator will ever develop more current than is exactly what is needed by the electrical system, so it doesn't hurt to have one with a larger capacity, except under one condition. That is when the charging system is being tested with a professional load tester. Those will draw the maximum possible current for just a few seconds, but that can be plenty to blow the fuse or fusible link wire that protects the alternator's output circuit. When various optional current ratings were offered, the fuse link was selected that matched the alternator being installed. If you install a replacement alternator that has a lower maximum capacity, nothing will happen. If you install one with a larger capacity, it can exceed the rating of the fuse device when put under the full-load test.
Replacing fuse link wires is a tedious job that usually never needs to be done in the life of the vehicle. Those act like a slow-blow fuse. They often hold up for the few seconds the full-load output current test takes. A lot of newer models use a regular fuse, but due to the high current rating, they're bolted into the fuse box since regular plug-in terminals can't handle the very high current. Those blow very quickly when current goes too high. Those are much easier to replace, but they still take some time as they're not a simple plug-in fuse.
Oct 9, 2023 at 5:34 PM
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Hi,
No, they are two very different parts. The OEM part number for the one needed is
68272108AD. That is the one needed.
Here is a link that explains in general how to replace one. If you look below, I attached the directions from my manual specific to this vehicle.
I hope this helps.
Take care,
Joe
See pics below.
No, they are two very different parts. The OEM part number for the one needed is
68272108AD. That is the one needed.
Here is a link that explains in general how to replace one. If you look below, I attached the directions from my manual specific to this vehicle.
I hope this helps.
Take care,
Joe
See pics below.
Images (Click to enlarge)
Oct 9, 2023 at 5:36 PM