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  #1  
Old 02-25-2011, 10:20 PM
cfox cfox is offline
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Default stock alternator

I've used the forum search feature but have not found the answer I'm looking for. Just want to know the amp rating of the alternator on a 2009 sport 4x4 with 4.0 and automatic. I think it's 115, or is it 130?
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Old 02-25-2011, 10:33 PM
FireRanger FireRanger is offline
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Default Re: stock alternator

Actually it is probably 90.
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Old 02-25-2011, 10:49 PM
Twisty Twisty is offline
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Default Re: stock alternator

90 or 115 according to this;
http://www.partswebsite.com/fordpart...n=4&type=parts
Does it have a sticker on it? Any numbers?
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Old 02-26-2011, 04:36 AM
STL STL is offline
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Default Re: stock alternator

2.3L 110 amp
4.0L 115 amp

You can buy aftermarket ones rated at 130
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Old 02-26-2011, 07:59 AM
cfox cfox is offline
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Default Re: stock alternator

I can see there are some numbers on the back but to read them I'd have to take it off. I think 4.0's with automatic, power, and air would have the 115. I'm wanting to put a linear on my CB. It draws 35 amps max so I should be good to go with some wiring improvements.
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Old 02-26-2011, 11:13 AM
zx6rrdan zx6rrdan is offline
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Default Re: stock alternator

Quote:
Originally Posted by cfox View Post
I can see there are some numbers on the back but to read them I'd have to take it off. I think 4.0's with automatic, power, and air would have the 115. I'm wanting to put a linear on my CB. It draws 35 amps max so I should be good to go with some wiring improvements.
Yeah it would be a 115
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Old 02-26-2011, 06:21 PM
FireRanger FireRanger is offline
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Default Re: stock alternator

Lucky. I wonder why they're using 115's now instead of 90's.
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  #8  
Old 02-27-2011, 12:55 AM
zx6rrdan zx6rrdan is offline
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Default Re: stock alternator

Quote:
Originally Posted by FireRanger View Post
Lucky. I wonder why they're using 115's now instead of 90's.
Just one of the many improvements they continued to make over time... For example my truck has rear disc brakes
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mods:Tinted windows,Line-X,BAK Rail Caps,rust proofing, stebel natilus air horn,ScanGauge II,hitch reciever cover, Belkin Iphone mount charger, rubbermaid floor mats, hose clamp tailgate, mud flap delete, Cargo light 3rd brake light, explorer lighted visors, mustang dome light, fog light mod, Mountaineer ohc, bosch evolution wipers, GenK51a mirror,Kenwood p680c speakers, Underhood LED's, Ranger winter rims 245/75-16 Blizzak DMV-1's, 180lbs winter bed weight
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