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post #1 of 5 (permalink) Old 09-03-2018, 08:12 PM Thread Starter
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Need Help with Alternator Wiring

While installing a Tork Tech Terminator GT kit in my '97 4.6L with Griffin Super High Capacity radiator, I ran into severe clearance issues between the add-on crank pulley and the fan motor, and between the relocated alternator and the fan shroud. I trimmed 3/4" from the fan shroud to gain clearance from the crank pulley to the motor, but the factory-style alternator was still much too long to clear the fan shroud when mounted on the front of the cross brace. So, I bought a 2001 Mustang Bullitt alternator, which is about 1-1/2" shorter than the MN12 unit, and (although still a tight squeeze) it does fit. The connections on the Bullitt alternator are similar to the ones on the MN12 alternator, except the small single wire connector on the MN12 does not exist on the Bullitt. How can I deal with this? And, are there any other electrical differences I will have to deal with? Still a week or two away from attempting to start the car, so if I need to make wiring changes, now is the time!

MikeB
1997 Thunderbird Sport
5.0L-2V PI S/C
540 RWHP / 492 RWTQ
11.28 @ 123 MPH
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post #2 of 5 (permalink) Old 09-03-2018, 09:21 PM
Humble MN12 Genius
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The wire is internal in the Bullitt(DOHC) alternator, with the stock alitenator it simply loops to the larger 3 pin connector, bridging the stator circuit.

-Matt
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post #3 of 5 (permalink) Old 09-03-2018, 09:29 PM Thread Starter
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So, I don’t have to do anything with that single wire connector?

MikeB
1997 Thunderbird Sport
5.0L-2V PI S/C
540 RWHP / 492 RWTQ
11.28 @ 123 MPH
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post #4 of 5 (permalink) Old 09-03-2018, 09:35 PM
Humble MN12 Genius
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Nope, you can leave it dangling or pull it out of the harness completely

-Matt
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post #5 of 5 (permalink) Old 10-17-2018, 06:14 PM Thread Starter
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Just a follow-up: the Bullitt alternator is working fine!

MikeB
1997 Thunderbird Sport
5.0L-2V PI S/C
540 RWHP / 492 RWTQ
11.28 @ 123 MPH
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