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Alternator swap

Tiny
MRAMPS1
  • MEMBER
  • 1989 GMC TRUCK
  • 7.4L
  • V8
  • 11,111 MILES
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?
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Sunday, April 26th, 2020 AT 9:01 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
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
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Monday, April 27th, 2020 AT 4:04 AM

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