Alternator sizing
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Laughing Gas
Joined: Jan 2019
Posts: 868
Likes: 84
From: Florida
Alternator sizing
Hello,
My 2002 F-250 5.4L 2V has an alternator that is about 12 years old. I was wondering (can't find any marking on it) what size is common and what amperage is best. I honestly don't know the range. I was thinking about putting on a winch and a few accessories. Does anyone have an idea what a bigger alternator (amps) would entail?
My 2002 F-250 5.4L 2V has an alternator that is about 12 years old. I was wondering (can't find any marking on it) what size is common and what amperage is best. I honestly don't know the range. I was thinking about putting on a winch and a few accessories. Does anyone have an idea what a bigger alternator (amps) would entail?
Cargo Master
Joined: Jul 2009
Posts: 2,538
Likes: 53
From: Des Moines
The stock alternator is 110 amp if it’s a “bare bones” truck. If it has a factory upgrades such as a tow, camper or snowplow package, it may be 115 or 130.
If you’re adding a winch, you may want to search for aftermarket replacements that provide more than 130 amps.
If you’re adding a winch, you may want to search for aftermarket replacements that provide more than 130 amps.
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