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

Upfitter switch wiring kit.

Thread Tools
 
Search this Thread
 
Old May 25, 2021 | 02:36 PM
  #1  
Sixoh06's Avatar
Sixoh06
Thread Starter
|
New User
Joined: May 2021
Posts: 1
Likes: 1
Upfitter switch wiring kit.

I have recently bought the upfitter switch for my 2006 king ranch that did not have it from factory. I was under the impression that all the truks were wired for it but was wrong, however i did find the part number from ford for the relay box and wiring (6C3Z-14A303-A). The problem is that it is no longer availible from anywhere. Does anyone know where i can get one or at least the connector ends that connect to the upfitter switch and fuse pannel?
 
Reply
Old May 25, 2021 | 06:41 PM
  #2  
Visurveyor's Avatar
Visurveyor
Fleet Mechanic
5 Year Member
Shutterbug
Liked
Community Favorite
Joined: Jul 2018
Posts: 1,629
Likes: 103
From: Jacksonville Florida
Club FTE Gold Member
Try this no.
(9C3Z-14A303-A)
 
Reply
Old May 25, 2021 | 07:06 PM
  #3  
Simon Espinola's Avatar
Simon Espinola
Mountain Pass
Joined: Jan 2021
Posts: 185
Likes: 4
From: Somewhere in the universe
Originally Posted by Sixoh06
I have recently bought the upfitter switch for my 2006 king ranch that did not have it from factory. I was under the impression that all the truks were wired for it but was wrong, however i did find the part number from ford for the relay box and wiring (6C3Z-14A303-A). The problem is that it is no longer availible from anywhere. Does anyone know where i can get one or at least the connector ends that connect to the upfitter switch and fuse pannel?
Welcome to FTE
I was going to say the same thing Visureveyor said, pretty much sure but i think it is for the 08-10, but it might work without or with minor hacking
 
Reply
Old May 26, 2021 | 01:22 PM
  #4  
Motohead911's Avatar
Motohead911
Laughing Gas
5 Year Member
Photogenic
Liked
Loved
Joined: Aug 2018
Posts: 934
Likes: 248
From: CA
Here is a pic of the upfitter switches for a 05-07



And here is the relay pack from a 2009 dash.




The last one is the 09 relay pack plugged into the 05 switches.

Hope this helps.
 
Reply
Old May 26, 2021 | 10:13 PM
  #5  
Yahiko's Avatar
Yahiko
Fleet Owner
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
Keep in mind that the harness and relay is one part number and the switch is the other.
You need to order both parts.

If you don't find what your looking for you might try Ebay also.
 
Reply
Old Jul 25, 2021 | 08:16 PM
  #6  
Grinchman's Avatar
Grinchman
Freshman User
Joined: Jan 2015
Posts: 47
Likes: 1
From: IL
Does anyone know if this wiring harness (9C3Z-14A303-A) will fit a 06 ? I found the switches ,and I am trying to find a harness that will work.
 
Reply
Old Jul 25, 2021 | 08:25 PM
  #7  
Yahiko's Avatar
Yahiko
Fleet Owner
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
I just did a search on Google and that comes out to be for a 2010 year and I found it on A1 auto.
They list is as not fitting a 2006 F350.
Here is the link I used. Maybe check with them to see if they have the part.
https://www.1aauto.com/2009-10-ford-...a/i/fdzwh00009

Something to look at >>> https://www.blueovaltrucks.com/tech-...tter-switches/
 
Reply
Old Jul 26, 2021 | 01:24 PM
  #8  
Motohead911's Avatar
Motohead911
Laughing Gas
5 Year Member
Photogenic
Liked
Loved
Joined: Aug 2018
Posts: 934
Likes: 248
From: CA
The relay box for 05-07 is located above the glove box. The 08-10 is located on the driver's side behind basic where the fuse box is.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-1

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-2

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-3

Every 2026 Ford Engine Explained

 Brett Foote
story-4

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-5

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-6

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-7

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-8

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
story-9

Top 10 Ford Truck Tragedies

 Joe Kucinski
Old Jul 27, 2021 | 07:33 PM
  #9  
Grinchman's Avatar
Grinchman
Freshman User
Joined: Jan 2015
Posts: 47
Likes: 1
From: IL
Thanks for the replies. I will have to check it out a little more.
 
Reply
Old Jul 31, 2021 | 08:49 PM
  #10  
Grinchman's Avatar
Grinchman
Freshman User
Joined: Jan 2015
Posts: 47
Likes: 1
From: IL
I bought the switches for the 06, and I got the wire harness 14A-303 . Everything plugged right in. The lights on the switches light up , but I don't have power to all the blunt wires.
 
Reply
Old Oct 21, 2022 | 11:44 AM
  #11  
BeGsIll's Avatar
BeGsIll
1st Gear
Joined: Oct 2022
Posts: 1
Likes: 0
Not sure if this is still active or not, if so.. does anyone know the possibility/difficulty of pulling & reusing factory relay box, harness, and switches? I have a junk truck with the upfitter cluster i want to transfer to my personal. 2006-2005 swap
 
Reply
Old Oct 21, 2022 | 01:12 PM
  #12  
Motohead911's Avatar
Motohead911
Laughing Gas
5 Year Member
Photogenic
Liked
Loved
Joined: Aug 2018
Posts: 934
Likes: 248
From: CA
Originally Posted by BeGsIll
Not sure if this is still active or not, if so.. does anyone know the possibility/difficulty of pulling & reusing factory relay box, harness, and switches? I have a junk truck with the upfitter cluster i want to transfer to my personal. 2006-2005 swap
It should be a simple plug and play going from 2006 to 2005. It was the same kit for 05 to 07.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ungerp
1948 - 1956 F1, F100 & Larger F-Series Trucks
9
Jul 8, 2014 09:57 PM
urbex
1961 - 1966 F-100 & Larger F-Series Trucks
6
May 8, 2012 05:51 AM
JT250
1999 - 2003 7.3L Power Stroke Diesel
36
Mar 2, 2011 06:33 PM
cbfomoco
1961 - 1966 F-100 & Larger F-Series Trucks
2
Jul 23, 2008 08:07 PM
GammaDriver
Electrical Systems/Wiring
4
Nov 8, 2006 09:40 PM




All times are GMT -5. The time now is 08:19 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-8
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE