Dual Alternator Setup - TheDieselGarage.com
Thread Details Posted by M.R.C. F-250, this thread has received 5 replies and been viewed 2243 times.

LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 09-21-2005, 03:15 PM Thread Starter
Welcome to the Darkside
Join Date: Sep 2005
Posts: 27
Points: 1,579
Thanks: 0
Thanked 0 Times in 0 Posts
Dual Alternator Setup

Does anyone know what parts are required for the dual alternator setup? I did not get it with my truck and was thinking about installing it.

M.R.C. F-250
M.R.C. F-250 is offline  
Sponsored Links
post #2 of 6 (permalink) Old 09-21-2005, 05:20 PM
Junior Member
Join Date: Aug 2005
Posts: 16
Points: 1,124
Thanks: 0
Thanked 0 Times in 0 Posts
Seems to me that I have read a few posts saying this "upgrade" was NOT an easy one to do after the truck was built. I can't recall the problems encountered, but there were some issues. For some reason, I want to say the routing or bending of a particular tube was/is needed. I'm sure it can be done, but to what extent. I think people who have considered going to the dual altenator, were convinced to check out just purchasing a higher output altenator - not necessarily Fords' heavy duty one, but an aftermarket one. Not much help I know, but I'm sure this will get someone to respond with some greater knowledge... :

2006 F350 w/6.0 CC, LB
CrimsnTide is offline  
post #3 of 6 (permalink) Old 09-21-2005, 08:22 PM
Senior Member
Join Date: Jul 2005
Posts: 2,691
Points: 26,542
Thanks: 3
Thanked 2 Times in 2 Posts
It's more than bolting on another alt,belt,etc.The PCM is also programmed to control the 2nd alt.
Unless you can find a way for the computer to talk to the added alt. I dont know how you could add an alternator.
Perhaps SCT tuners could help?
I debated removing my second alt.until I found out about the computer issue.
nummit is offline  
post #4 of 6 (permalink) Old 09-21-2005, 10:19 PM
Senior Member
Join Date: Sep 2005
Posts: 102
Points: 10
Thanks: 0
Thanked 0 Times in 0 Posts

I agree with the others. Adding one after the fact is very difficult and very spendy. The easiest route would be to put a higher capacity alternator on instead of your factory alternator.

Whenever people are ordering a new truck, I always tell them to order the dual alternators if they even have an itch that they may need it in the future. The $300 at time of order is small compared to after the fact.

Good luck with your quest,

2004 F250 Lariat, Diesel 6.0L, 5spd auto,4x4 FX4, True Blue/Med Parchment, Camper Package, Cab lights, Dual Alternators, AIC, Power Sliding Rear window, 12.5k receiver hitch.

Add-ons: Headache Rack, Brush Guard, B&W Hidden Hitch & Daytime Running Lights, PIAA 520 series driving lights, boost/tranny gauges, Dahl 100 fuel filter/water separator, Prodigy brake controller, air horns, high visibility LED signals (below doors).

In-the-works: Onboard air, Aux. fuel/Toolbox combo, Thermocouple installation.

Ordered on: 03/29/04.
Arrived on: 04/28/04.
SIGNED: 05/01/04 Whoop!
Recall 04B24: Installed 02/15/05.
imported_poppasmurf is offline  
post #5 of 6 (permalink) Old 09-21-2005, 10:57 PM Thread Starter
Welcome to the Darkside
Join Date: Sep 2005
Posts: 27
Points: 1,579
Thanks: 0
Thanked 0 Times in 0 Posts
Thanks for the input guys. I will definitely look into the high output one. Any brand in particular I should look into?

M.R.C. F-250 a.k.a. DjLinks
"In Thrust We Trust"
Black 2005 F-250 Crew Cab XLT Sport FX4
Airaid Intake w/Plexi Mod, Zoodad Mod, MBRP 4" Turbo Back, Auto Meter Sport Comp Pyrometer, SCT Tunes by DJ's Diesel Performance & The Frog
OEM Radio 6 Disc MP3, 08 Super Duty Door Tweeter Pods, Infinity Kappa Mids & Highs, JL Audio 300/4, JL Audio 12W3, JL Audio 500/1
Smoked Tail Lights, Third Brake Light & Tail Gate Clearance Lights, FX4 Decals Removed, Steveracer Mod, OEM 20" Wheels, Reverse Flood Lights, Cowl Induction Hood
M.R.C. F-250 is offline  
post #6 of 6 (permalink) Old 09-22-2005, 04:01 AM
Diesel Custom Tuner
Join Date: Aug 2005
Posts: 2,600
Points: 25,618
Thanks: 0
Thanked 3 Times in 3 Posts
Don't even try it. You are better off getting yours upgraded. You can go to about 200 amp in the stock 3g case. Going any larger will require external regulation where you will have to mount a separate voltage regulator. To go dual alt it like swapping an auto for a manual trans and vice versa. Just trade the truck.
PSDPlayer is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the TheDieselGarage.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
No flaming allowed...... woodsracer 5.9L Cummins (2003-2007.5) 11 06-11-2006 05:46 PM
HELP ! 94 12 V W/ Issues VIDEO FOOTAGE ! DieselMinded 5.9L Cummins (Pre 1994) 21 09-18-2005 11:05 PM
International 504? Deezle1 Utility & Farm Tractors 34 06-25-2005 02:09 AM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome