Need Alternator Recommendation

1945 - 196*, Willys CJ series, questions, discussions, regarding anything related to the post war jeep.®
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Re: Need Alternator Recommendation

Post by mdainsd » Thu Feb 13, 2020 1:41 pm

roughneck20 wrote:
Wed Feb 12, 2020 9:59 pm
im no expert on alternators and barely know anything about them but i am planning on going with this ... 1438.l2649
Keep looking! That mount is a monstrosity, trust me, I know.
52 M38 2X, '52 M37, '44 WC51, '42 WC 56/57, '50 CJ-V35(U), '42 GPW, '44 M3A1 Scout Car, 2010 M-Gator

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Re: Need Alternator Recommendation

Post by roughneck20 » Thu Feb 13, 2020 2:47 pm

ill keep that bracket in mind and would the 8n alternator at 63 amps be enough for my cj-38 with my accessories and led light bulbs and my ham radio and a 5000 lb winch from harbor freight which was the main reason of the load boss 105 amp alternator and yes i know its alot of money
1950 CJ3A being converted to an M38 (CJ38)

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Re: Need Alternator Recommendation

Post by dpcd67 » Thu Feb 13, 2020 4:23 pm

I do remember hearing about amps, volts, and watts from tenth grade science, but all of it is a blur now. There is a formula; amps times volts equals something or another.
All I want to run is, head and tail lights. Sounds like you need more of something. I know it's not volts. Please, no one tell the story about the river flowing; I never got that.
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Re: Need Alternator Recommendation

Post by parker007 » Thu Feb 13, 2020 5:03 pm

you could start whole post on how much amp alternator you need, just consider if using winch battery size very important then the bigger the alternator the less you have to wait to charge. in my opinion 63 amps if enough as lang as you not want to use winch for long pull or in hurry

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Re: Need Alternator Recommendation

Post by Bruce W » Thu Feb 13, 2020 8:39 pm

The first GM Delco alternators introduced in 1962, on a car or pickup with headlights, taillights, a heater and a radio, had a capacity of 37 amps. More than enough for the vehicle, and more than enough for a jeep without a winch. If you bought a new car with air conditioning, power windows, etc, you got a 43 amp alternator. Over the years, they've gone up from there. I don't know whether you can even get one that small anymore. BW
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