Ford (Motorcraft) "Heavy Duty" alternator-visual ID
Is there a way to tell a heavy duty alternator from a standard with a visual inspection? I went to buy one today (non Motorcraft) and the guy assured me it was the heavy duty model. I asked him how he knew this and he stated that "it had a longer warranty." Sounded like BS to me.
Thanks
Tom
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Tom
Austin, Texas
1995 SMB E250
Re: Ford (Motorcraft) "Heavy Duty" alternator-visual ID
Mine said 200 amp on the box. Don't go by "heavy duty". A heavy duty Ford alternator might be the difference between a 130 amp standard as compared to a "heavy duty" Ford 140 amp. Those are examples only.
[edit]
Mine is an MCI, purchased through Superiordc.com 209 668-2200. Don't have a clue how it stacks up against other alternators as far as quality.
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2006 Ford 6.0PSD EB-50/E-PH SMB 4X4 Rock Crawler Trailer
Re: Ford (Motorcraft) "Heavy Duty" alternator-visual ID
If it is a Ford alternator, they will all look the same. The PN is really the only way to tell them apart.
Mike
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Alaska to Key West, Labrador and more
Prostate cancer survivor. See Thread Prostate cancer and Sportsmobiles
2015 VW GTI 2020 Fiat 124 Spider
2012 E250 Hitop camper
Re: Ford (Motorcraft) "Heavy Duty" alternator-visual ID
The 6.0L diesel uses a small-case 6G alternator stock. Most high-output alternators will be a large-case 6G, which uses the same mount points, but the body is physically larger. The greater size allows for more windings, and less heat-generation for a given output.
Right is stock, left is a 200amp replacement:
Note that the pulley is a touch smaller as well since I wanted to have more output at idle.
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Alaska to Key West, Labrador and more
Prostate cancer survivor. See Thread Prostate cancer and Sportsmobiles
2015 VW GTI 2020 Fiat 124 Spider
2012 E250 Hitop camper
Re: Ford (Motorcraft) "Heavy Duty" alternator-visual ID
Thanks everyone. I ended up telling the mechanic to put in a "heavy duty motorcraft." I didn't specify "high output."
My bad.
It's rated at 114 amps. I don't use the house battery all that much. Really just replacing as routine maintenance as the original is 15 years old. Also may install solar down the road.
I appreciate the help.
Tom
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Tom
Austin, Texas
1995 SMB E250