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2017 - 2022 Super Duty The 2017-2022 Ford F250, F350, F450, F550 & F600 Super Duty Pickup and Chassis Cab
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Plug under bumper

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Old Aug 27, 2020 | 08:41 AM
  #1  
TomHay's Avatar
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Plug under bumper

Anyone know what this plug is? Plow hook-up? Mounted to the frame behind the front bumper.

 
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Old Aug 27, 2020 | 10:14 AM
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Originally Posted by TomHay
Anyone know what this plug is? Plow hook-up? Mounted to the frame behind the front bumper.

Do you have fog lights? Looks like on my truck that plugs into the wire harness that runs along the top of the valance and goes to the fog lights.
 
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Old Aug 27, 2020 | 10:23 AM
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Getting ready to install my RA bumper and pulled mine off a '19 F350 XL and was wondering the same thing.
 
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Old Aug 27, 2020 | 10:58 AM
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That is the fog light harness connection.
 
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Old Aug 27, 2020 | 11:28 AM
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So the XL trucks and trucks not equipped with fogs are equipped with the plug for them? That's handy.
 
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Old Aug 27, 2020 | 11:32 AM
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Originally Posted by GNR22
So the XL trucks and trucks not equipped with fogs are equipped with the plug for them? That's handy.
That harness is on any truck with power equipment group.
 
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Old Aug 27, 2020 | 11:36 AM
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Originally Posted by ford390gashog
That harness is on any truck with power equipment group.
Good to know. Thanks!
 
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Old Aug 27, 2020 | 10:07 PM
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I have a xl myself, this is a great read on what ya need to make um work...

https://www.ford-trucks.com/forums/1...2019-f250.html
 
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Old Aug 28, 2020 | 01:45 PM
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interesting. tx!!
 
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Old Apr 9, 2023 | 06:32 PM
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Wiring diagram for plug on chassis?

I’m trying to figure out what all 8 wires are on my 2021 super duty, I know 4 on the harness from my bumper are for the lights but what are the other 4? Trying to see if I can utilize any of them for some marker lights I installed on my valance I want on when my running lights are on
 
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Old Apr 9, 2023 | 11:37 PM
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Originally Posted by tlizotte796
I’m trying to figure out what all 8 wires are on my 2021 super duty, I know 4 on the harness from my bumper are for the lights but what are the other 4? Trying to see if I can utilize any of them for some marker lights I installed on my valance I want on when my running lights are on
I used one of these t adapters. Works great..
https://www.starkey-products.com/headlight-adapters/
 
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Old Apr 10, 2023 | 01:47 AM
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Four of the additional wires on my 2021 were for adaptive cruise radar sensor. 2 CAN wires and the other 2 for power and ground.
 
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