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55 50 Ron

09-10-2019 18:57:24

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I'm not an expert at identifying particular alternators. This is obviously a Delco Remy but which model? It's on a 4020 diesel. Thanks.

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Glen D Anderson

09-11-2019 05:39:12

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 Re: Alternator in reply to 55 50 Ron, 09-10-2019 18:57:24  
To add to Bob's comments, here is a link to a website that provides a fair bit of good info. on the Delco 10 & 12 SI alternators: http://www.madelectrical.com/electricaltech/delcoremy.shtml

FWIW, we are running the 94 amp, 12SI on all of our tractors. Napa P/N 213 - 4356. Highest amp. rating in the 10/12 SI frame, reasonably priced, & most importantly, lifetime warranty.

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09-10-2019 20:54:06

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 Re: Alternator in reply to 55 50 Ron, 09-10-2019 18:57:24  
It's a Delco 10SI.

If you are looking for a generic replacement, GOOGLE "7127 alternator". The suffix numbers that will come up indicate the "clock" position of the terminals.

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09-10-2019 19:13:31

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 Re: Alternator in reply to 55 50 Ron, 09-10-2019 18:57:24  
When I was a teenager working in an auto parts store, seems like I recall those GM alternators having numbers stamped on the side, usually in that wider smooth area, that identified the alternator and it's output ability.

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