Notices
6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

High Output Alternator?

Thread Tools
 
Search this Thread
 
Old Jul 31, 2014 | 10:30 PM
  #1  
Totally Tuna's Avatar
Totally Tuna
Thread Starter
|
Senior User
Joined: Apr 2007
Posts: 144
Likes: 1
High Output Alternator?

If I go with a 185amp Alternator from DC Power will I need to upgrade my wire that connects to output post?
 
Reply
Old Jul 31, 2014 | 10:54 PM
  #2  
Yahiko's Avatar
Yahiko
Fleet Owner
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
Well at that amperage you should.
If you have #4 copper the max length
should not be more than 6' and your
also going to want to put a fuse in
the line because that cable will hold
up long enough to start a nice big fire.

If you want to look at a sizing calculator try this one
Wire Size Calculator | GTSparkplugs

Sean
 
Reply
Old Aug 1, 2014 | 12:26 PM
  #3  
Totally Tuna's Avatar
Totally Tuna
Thread Starter
|
Senior User
Joined: Apr 2007
Posts: 144
Likes: 1
What size cable is on the truck stock? Is that cable big enough for a 185 amp alternator?
 
Reply
Old Aug 1, 2014 | 01:55 PM
  #4  
Toreador_Diesel's Avatar
Toreador_Diesel
FTE Leadership Emeritus
20 Year Member
Liked
Loved
Top Answer: 1
Joined: Sep 2003
Posts: 12,258
Likes: 771
From: Houston, Texas
Club FTE Gold Member
Originally Posted by Totally Tuna
What size cable is on the truck stock? Is that cable big enough for a 185 amp alternator?
If you ask me, no...

It's some dinky wiring that seems to be just enough to keep the truck running within spec.

This is 2/0 wiring that I installed last weekend: Super Start® 04357 - Battery Cable | O'Reilly Auto Parts

It's designed for a 7.3, but can be made to work with a 6.0.

-The wire that goes down to the starter is already 2/0, so you're better off NOT replacing the cable all the way down to the starter. Simply cut the existing cable and new cable, use a butt connector to connect them, then cover with shrink wrap.

-The harness .5 to 1 inch too short to reach the driver side battery. You'll need a small piece of 2/0 wire, 2 butt connectors to splice, and some shrink wrap, but it'll reach.

That's all I really had to do to make it work and it's much better than having to make your own cable.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Dogdare
1999 - 2016 Super Duty
4
Dec 14, 2018 07:27 PM
BLDTruth
1987 - 1996 F150 & Larger F-Series Trucks
28
Mar 19, 2018 08:20 AM
strokin'_tatsch
1994.5 - 1997 7.3L Power Stroke Diesel
32
Jun 12, 2013 12:21 PM
matttaubert
1999 - 2003 7.3L Power Stroke Diesel
6
Mar 2, 2008 09:41 PM
JBronco
1978 - 1996 Big Bronco
20
Oct 14, 2004 09:57 PM




All times are GMT -5. The time now is 01:32 AM.

story-0
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-1
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-2
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-3
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-4
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-5
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-6
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-7
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-8
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-9
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE