Dual alternators
Thread Starter
|
4wd Low
Joined: Dec 2024
Posts: 11
Likes: 3
From: Colorado Springs
Dual alternators
My apologies if this has been asked before but does anyone have the dual alternator bracket. Don't necessarily need to purchase it but if anyone has the means to could someone 3d scan one so I can have one made? But if you have one for sale I would buy it.
Thread Starter
|
4wd Low
Joined: Dec 2024
Posts: 11
Likes: 3
From: Colorado Springs
I have been looking at the premier power welder for having access to a welder anytime I need it and it would be perfect but I don't want to deal with replacing the factory alternator with the special one it comes with. I'd prefer to leave the truck alone and have the alternator for the welder by itself. It would be tied into a separate battery that would power other accessories and i think it would be better to just leave it isolated from the trucks charging system.
Cargo Master
Joined: Apr 2012
Posts: 2,006
Likes: 521
From: Bottom Of Pikes Peak
If/ when you get this figured out and hooked up; I'd like to check it out sometime. I live in the Springs too. I could see this being a great asset for someone that could take advantage of it. My buddy could use this setup but I doubt he would ever spend the coin for the setup
From past threads about factory dual alts, I thought the trucks had something special with the wiring/ and one of the computers. I don't remember the details and might just be making things up in my head, IDK.
From past threads about factory dual alts, I thought the trucks had something special with the wiring/ and one of the computers. I don't remember the details and might just be making things up in my head, IDK.
Thread Starter
|
4wd Low
Joined: Dec 2024
Posts: 11
Likes: 3
From: Colorado Springs
Yeah the ecu controls the second alternator and for trucks that didn't come factory with the dual setup need to be reflashed to make sure it does what it needs to. Easier to just run high amp single. But for example the premier power welder the dual bracket would be a god send. The end goal is to get the truck setup to handle pretty much everything, kinda want to be Colorado's version of Matts off road. Just without spending the money he did on the wrecker.
Cargo Master
Joined: Apr 2012
Posts: 2,006
Likes: 521
From: Bottom Of Pikes Peak
That would be awesome. I know we have off road recovery but I think they are typically a jeep crew. I think they are on youtube as well. I hope this works out well for you, there definitely shouldn't be a shortage of work for you
Fleet Mechanic
Joined: Aug 2014
Posts: 1,821
Likes: 238
From: piedmont mo
I’m currently running dual alternators on my 02 f350 it didn’t come with them factory but I had voltage at the plug on the second alternator. Had everything from a parts truck and have been running them for several years now. I’m just using another top alternator you do have to make sure to swap the upper pulley to a larger 6.0 size pulley or the belt is to short and will slip. I don’t remember the size off hand on pulley but everything works flawlessly.
Trending Topics
Tuned
Joined: Apr 2004
Posts: 426
Likes: 72
From: Aroostook County, Maine
I believe it is possible to keep the second alt separate and independent of the primary charging system by not connecting the factory pigtail to the 2nd alt. You will still have to provide the excitation/trigger voltage(s) to the 2nd alternator of course. As long as the trigger source(s) isn't coming thru the PCM circuit that controls the primary*, the charging system wouldn't know it was there (the engine would though). And you would need to wire the output to the aux battery independent of existing wiring.
*With that said, you might be able to parallel the primary alt PCM signal wire to the second alt (but not the factory signal for the 2nd alt). In this case the PCM would be triggering the 2nd one simultaneously, without the built in logic that would control a 2nd alt. However I would be concerned that doing so might invoke a voltage drop that would eff up the primary alt?
*With that said, you might be able to parallel the primary alt PCM signal wire to the second alt (but not the factory signal for the 2nd alt). In this case the PCM would be triggering the 2nd one simultaneously, without the built in logic that would control a 2nd alt. However I would be concerned that doing so might invoke a voltage drop that would eff up the primary alt?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Lead Driver
Joined: Aug 2022
Posts: 5,050
Likes: 1,409
From: Oologah, OK
I have been looking at the premier power welder for having access to a welder anytime I need it and it would be perfect but I don't want to deal with replacing the factory alternator with the special one it comes with. I'd prefer to leave the truck alone and have the alternator for the welder by itself. It would be tied into a separate battery that would power other accessories and i think it would be better to just leave it isolated from the trucks charging system.
Just adding a 2nd alternator will NOT work on their welder.
they are using the AC Windings to generate A/C volts
read this:
https://premierpowerwelder.com/faqs-tips-facts/
Thread Starter
|
4wd Low
Joined: Dec 2024
Posts: 11
Likes: 3
From: Colorado Springs
That's why I'm not just adding a second alternator. I would be using their alternator on the bracket. I want to keep the factory one that charges the truck. That's why it would be it's own system basically, completely isolated from the truck. The dual alternator bracket is just to hold their alternator and have it driven by the engine. It wouldn't be connected to the trucks charging system.
Lead Driver
Joined: Aug 2022
Posts: 5,050
Likes: 1,409
From: Oologah, OK
That's why I'm not just adding a second alternator. I would be using their alternator on the bracket. I want to keep the factory one that charges the truck. That's why it would be it's own system basically, completely isolated from the truck. The dual alternator bracket is just to hold their alternator and have it driven by the engine. It wouldn't be connected to the trucks charging system.
I was going to suggest to leave the OEM as is.
just add the Premiere alternator separate from the truck,
you need a bracket, I can't help you there, sorry.
Thread Starter
|
4wd Low
Joined: Dec 2024
Posts: 11
Likes: 3
From: Colorado Springs
Hopefully I didn't sound like an ***. The plan is to keep everything "modular" if you will. That way if I ever need to i can take it all off and have a stock truck or if the truck dies i can put on another one.
Lead Driver
Joined: Aug 2022
Posts: 5,050
Likes: 1,409
From: Oologah, OK
Never thought you were, I took it for what "I thought you wanted"
then realized, I miss-understood what you needed.
Wish I had an extra bracket, you could have it for shipping cost.
Is there a Fabrication shop near you, that can help you out?
I see folks using Cardboard to make their " CAD Drawings "
Can you use a piece of cardboard to make a layout of what you want,
then go to a metal shop and have them use a Plasma cutter to make you one.
then realized, I miss-understood what you needed.
Wish I had an extra bracket, you could have it for shipping cost.
Is there a Fabrication shop near you, that can help you out?
I see folks using Cardboard to make their " CAD Drawings "
Can you use a piece of cardboard to make a layout of what you want,
then go to a metal shop and have them use a Plasma cutter to make you one.
Thread Starter
|
4wd Low
Joined: Dec 2024
Posts: 11
Likes: 3
From: Colorado Springs
I thought about that because I have a plasma cutter and welder. But trying to get everything lined up would honestly be a pain. Thats why i just wanted to get the bracket. But if it comes to it ill probably have to suck it up and make one.
If I could get my hands on one I would definitely get all dimensions I can and if possible a 3d cad file of it made and I'd post it everywhere for everyone to get ahold of.
If I could get my hands on one I would definitely get all dimensions I can and if possible a 3d cad file of it made and I'd post it everywhere for everyone to get ahold of.
Lead Driver
Joined: Aug 2022
Posts: 5,050
Likes: 1,409
From: Oologah, OK
these folks have brackets, wonder if a phone call would get you a Ford bracket?
https://southwestspeed.com/collectio...-mounting-kits
call these folks
https://www.americanpowerinc.com/pro...m/kmf-8-26492v
and here https://www.dcpowerinc.com/collectio...nator-brackets
https://southwestspeed.com/collectio...-mounting-kits
call these folks
https://www.americanpowerinc.com/pro...m/kmf-8-26492v
and here https://www.dcpowerinc.com/collectio...nator-brackets
