For your 2003 911 Carrera, shop and save on these wholesale genuine parts. ThisAlternator assembly diagram and OEM parts list is for a 6 cylinder 3.6 liter engine (-).
The alternator is a small electrcial generator, which is powered by the engine in order to provide all the electronic systems in your Porsche the power they need when the engine is running. If the alternator fails, the responsisbilty of running these systems relies on the battery, which it is not designed to do, and can cause the battery to fail, leaving your stranded.
No known discontinued parts in this assembly. If you believe a part is discontinued, feel free to notify/contact us