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Old 12-26-2007, 04:52 AM   #1
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High-Output Alternator 200A ???

hallo,

i think about buying this high-output alternator: click me

can my stock battery handle this alternator until i have enough money for two yellow optimas?

do i need some other parts? or is it a bolt-on installation?

is there nother cheaper H.O. alternator thatĀ“s as good as the one i posted above?

thanks in adavnce.
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Old 12-26-2007, 07:47 AM   #2
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You should be fine installing that alternator with your stock battery until you can get your optima setup going.

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Old 12-26-2007, 01:35 PM   #3
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Quote:
Originally Posted by jeeperman View Post
You should be fine installing that alternator with your stock battery until you can get your optima setup going.
Exactly. Even though the alternator might be capable of providing 200 amps, it only puts that much out when it is "asked" to do so by the battery via the voltage regulator. Under normal useage, a 200 amp alternator puts out exactly the same amps as a standard alternator does. It'd likely only ever put out its full 200 amp potential capacity when you're winching a heavy load and the battery is getting low.
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Old 12-27-2007, 02:13 PM   #4
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one thing to consider. when i put a 160A alternator in mine under normal conditions every thing was fine.

however i do have a small trailer that has a power inverter and dual red tops in it. it was hooked to my jeep (electrically) which has dual yellow tops. i had run the batteries while mkaing some coffee, several pots.

upon starting the jeep everything was fine at idle and up to 2k rpm's. i charged all four batteries for about an hour before i hit the road without the trailer. so i was charging only 2 batteries. as i was cruising down the road above 2k rpm's i blew my stock (2) 50 amp fuses. afterall 2 50 amp fuses in parallel is only 100 amps. luckily i had 2 spare 60's. which worked for a while.

long story short i added a third fused charging cable from the alternator to the fuse box. i now run (3) 50 amp fuses. check you wiring and figure how to add a third charging line and make sure it is of appropriate gage.

good luck.
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Old 12-27-2007, 03:05 PM   #5
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A little over a year ago I replaced my stock 60 amp with this unit
http://cgi.ebay.com/ebaymotors/ws/eB...185753221#LIST

It has worked flawlessly and I do recommend it to anyone looking to upgrade.
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Old 12-28-2007, 06:14 AM   #6
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I got a 136 amp alt from a junk yard from a dodge truck. it is a direct match and was way cheeper. The best part was it only cost me 30 bucks.
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Old 11-29-2010, 06:41 PM   #7
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Does anyone have any good alternator alternatives to the $400.00 mean green 200 amp unit. I have a aftermarket Denso 90amp alternator on my jeep now, but would like to upgrade due to all my accesories.
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Old 11-29-2010, 07:48 PM   #8
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Dodge Durango alternator is a direct plug in, I forget how many amps it has but the above mentioned 136 amp rings a bell. I doubt you really need 200 amps from an alternator.
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Old 11-29-2010, 08:43 PM   #9
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So my Jeep is a 2000, would I go into an autoparts store and ask for a 2000 Dodge Durango alternator?
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Old 11-29-2010, 09:33 PM   #10
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Quote:
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Dodge Durango alternator is a direct plug in, I forget how many amps it has but the above mentioned 136 amp rings a bell. I doubt you really need 200 amps from an alternator.
I liberated this from another forum:

"I just did the research last week and changed mine out to an 01-06 Durango which is a direct fit and 160 amps."


It was put into an 05 Rubi, I don't know if it's a direct replacement for our older Wranglers, though.
160 sounds A LOT better than 90, lol!
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Old 11-30-2010, 01:56 AM   #11
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Any one have any info on how to cross reference to check and see what year Durango alternator will work with my Jeep.
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Old 11-30-2010, 08:36 AM   #12
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Bring your old one in and match them up. check the plugs and clocking and mounts, if all looks ok then your cross referenced. And it sounds as if 01 to 06 would be a good place to start.

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Old 11-30-2010, 04:13 PM   #13
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I went into Advanced auto parts and matched up a alternator for my 2000 Jeep. The 2001 Durango 136amp and 160amp were identical except for an extra bracket on the top of the alternator. I have not checked to see if it fits yet, but it should. If so, it only cost me $120.00. Way better that $490, $550 and $898.00 for high output counterparts.

Thanks for all your help!
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Old 11-30-2010, 04:28 PM   #14
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I've read somewhere about that alternator, I'm pretty sure you just need to grind that extra tab off and it's a bolt on fit. When I'm home i'll check my bookmarks and let you know for sure
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Old 11-30-2010, 08:53 PM   #15
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A couple threads, couldn't find the page I was thinking of in the past...

JUNKYARD UPGRADES - Jeep Rubicon Forum

Durango Alternator Swap with pictures! - JeepForum.com

Durango alternator install - JeepForum.com

Mean Green alternators and starters? - JeepForum.com

I'm pretty interested in this and I have an 02
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Old 11-30-2010, 10:29 PM   #16
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The alternator fit with no problems, I did not have to cut the extra bracket.

Here are some pics.
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Old 12-01-2010, 12:12 AM   #17
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Is there a way to identify a 160 amp alt vs the stock 136 amp unit?
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Old 12-01-2010, 01:12 AM   #18
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Thats what I need!
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Old 12-01-2010, 01:52 AM   #19
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Call in the part number to the manufacture, they will most likely be able to tell you.
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Old 12-01-2010, 02:06 AM   #20
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Well I was just thinking for us scavengers out there. If we can identify one in a bone yard or ebay.
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Old 12-01-2010, 04:42 AM   #21
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I had a 1 ton dodge alternator in my '98 Tj, it was a tight fit but it did fit in and worked great until the bearing went south. Have you considered taking the alternator you have to a Alternator/starter rebuild shop to have them rebuild it to your specs? They will be able to bump up the output to just about what you need and it might be a bit cheaper.
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Old 12-01-2010, 10:53 AM   #22
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Hey snoworks, is that the 136 or 160 amp you installed?
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Old 12-01-2010, 11:06 AM   #23
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Quote:
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I had a 1 ton dodge alternator in my '98 Tj, it was a tight fit but it did fit in and worked great until the bearing went south. Have you considered taking the alternator you have to a Alternator/starter rebuild shop to have them rebuild it to your specs? They will be able to bump up the output to just about what you need and it might be a bit cheaper.
Which dodge model specifically? I was thinking the 01-06 durango alt wouldn't work on my 97 but I guess i'll have to check.
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Old 12-01-2010, 11:10 AM   #24
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Biggest thing you have to remember is that 80 percent of the alternators out there are not full output at idle, or even off idle a little bit. They don't reach full until crusing speed down the highway. The baddest alternator you can buy is one from Wrangler Power Products...but they are pricey
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Old 12-01-2010, 01:59 PM   #25
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Quote:
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Hey snoworks, is that the 136 or 160 amp you installed?
Its the 160 amp!
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Old 12-01-2010, 02:10 PM   #26
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Sweet, good to know, it'll most likely fit my 02 then. I'd be interested to see if an alternator shop could beef up the stock one for less.
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Old 12-01-2010, 03:23 PM   #27
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Snoworks, could you post the PN for that alternator you got? I have several 160amp version in junkyards near me for $30! What a steal, I just want to make sure it's the right one
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Old 12-02-2010, 02:02 AM   #28
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Mike,

Its an after market altenator, so I don't think the numbers would do you any good looking at OEM equipment.
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Old 12-02-2010, 06:12 AM   #29
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Damn :-( I'll just try to eyeball it with a picture hahaha
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Old 09-07-2011, 04:37 PM   #30
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For anyone in my situation with an 02 and was curious about this, please see post #25 on this thread at JF

Durango 160A Alt Swap for 2002 TJ - Page 2 - JeepForum.com

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