Alternator swap

1989 GMC TRUCK
11,111 MILES • 7.4L • V8
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MRAMPS1
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I have a 1989 454 in my boat with a 1 wire alternator. l purchased a 220 amp alternator from DB Electrical Item Number: ADR0172-220. it has a 4 pin connector on the side. I have looked up wiring diagrams couldn't find any with 4 pin connectors. Just a brown wire leading to the charge indicator. will this work on my motor?
Apr 26, 2020 at 9:01 PM
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ASEMASTER6371
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Good morning.

No, it will not work at all.

What happened to the original alternator? I would have that one overhauled by a re builder and re install. The 1 wire alternators work great and the output should be able to handle all the current you need.

Roy
Apr 27, 2020 at 4:04 AM