Alternator 2003 HD replacement
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Junior User
Joined: Aug 2009
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Alternator 2003 HD replacement
Is there a more reliable bolt in than this O'Riley's or other corner store stuff?
The alternator (single alternator) was only 3 years old, which is 25K miles for me. My alternator apparently had the regulator fail. It would only do 12.3 at idle and 12.8 at 1500 RPM with no real load.
They warranted it for me. Voltage is now normal, but I want to swap a more reliable alternator in.
I don't want or need a huge alternator. I need something with a history of being more reliable in normal service.
The alternator (single alternator) was only 3 years old, which is 25K miles for me. My alternator apparently had the regulator fail. It would only do 12.3 at idle and 12.8 at 1500 RPM with no real load.
They warranted it for me. Voltage is now normal, but I want to swap a more reliable alternator in.
I don't want or need a huge alternator. I need something with a history of being more reliable in normal service.
Postmaster
Joined: Jul 2015
Posts: 4,392
Likes: 22
From: very South Texas
depends on HOW they are rebuilt...
everything used but tested... except brushes.
everything replaced except for stator and windings.
everything NEW including Case.
Priced accordingly. ASK before buying.
LOOK for one with LIFETIME Warranty.
.
everything used but tested... except brushes.
everything replaced except for stator and windings.
everything NEW including Case.
Priced accordingly. ASK before buying.
LOOK for one with LIFETIME Warranty.
.
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Junior User
Joined: Aug 2009
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I thought about that but don't know who does their rebuilding and how reliable they are. I guess I'll try one if this Ultima goes out.
Clearly the warranty is meaningless for quality. The O'Reilly Ultima alternator with a lifetime warranty can't be reliable if I've had two lifetime warranty alternators fail within 30k miles.
Clearly the warranty is meaningless for quality. The O'Reilly Ultima alternator with a lifetime warranty can't be reliable if I've had two lifetime warranty alternators fail within 30k miles.
Postmaster
Joined: Jul 2015
Posts: 4,392
Likes: 22
From: very South Texas
maybe you just have bad luck with O'Reilly.. I have NOT used them..
mainly because none are around me.
Napa, or Advanced Auto Parts.. I do not have good luck with AutoZone.
but for now.. you have what you have.. till you change.
the alternator in my 2012 is original.. with 152,000 miles.
mainly because none are around me.
Napa, or Advanced Auto Parts.. I do not have good luck with AutoZone.
but for now.. you have what you have.. till you change.
the alternator in my 2012 is original.. with 152,000 miles.
Token Redneck
Joined: Jun 2007
Posts: 9,339
Likes: 350
From: Breckenridge, TX
https://www.ford-trucks.com/forums/1...l#post17249673
Reliability is a by-product of choosing the right component. Swapping 110A alts back into a 6.0 is like putting a 5A fuse into a 10A slot and wondering why it keeps blowing.
Postmaster
Joined: Jul 2015
Posts: 4,392
Likes: 22
From: very South Texas
I had not considered that,,
What if the first replacement was smaller in amps then factory... and second one was same size as first replacement...
and IF Diesel.. and 2 batteries... 160 or better.
What if the first replacement was smaller in amps then factory... and second one was same size as first replacement...
and IF Diesel.. and 2 batteries... 160 or better.
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