2005-2008 Chrysler 300 2.7L, 3.5L, 5.7L & 6.1L Instructions Sheet

Before removing the factory alternator you must complete the wire check as noted.
Wire Check: The original alternator is externally regulated by the computer. The original plug has two wires, one will have 12.6 volts with the key turned on and the other is the regulation wire. You will have to determine what the wires are conncted to do. This process is as follows: With the vehicle in park and the parking break on, start the vehicle. Using a volt meter, test each of the alternator plug wires. The wire that has the highest voltage is the main power for the voltage regulation. Mark or remember which wire is which for item #5 below.
1. Disconnect the negative battery cable and then disconnect the positive battery cable.
2. Disconnect the wiring, remove the belt, and then remove the stock alternator from it's mounting brackets.
3. Mount the new alternator to the existing mounting block on the engine with the new bracket assembly, that is attached to the alternator. The bracket needs to be removed from the alternator and be completely disassembled, noting where the bolts go. See the New Alternator view below.
4. See the exploded views below. Step #1: Install the bottom part of the bracket to the origional stock mounting location for the two bolts. Using the longer M10 flat head screw, insert it about half way into the threaded hole(this will help you get the bracket alligned properly). Install the shorter M10 flat head screw and tighten it with a 6mm allen wrench.

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