6.7 fan clutch pigtail

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Mar 14, 2024 | 04:20 PM

Ferny0329

Thread Starter

2nd Gear

Joined: Jun 2021

Posts: 2

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6.7 fan clutch pigtail

it’s so nice I have a 2011 F350 my fan ripped out my fan clutch wires I’ve been looking for forms and can’t find or know how the wires go

Mar 15, 2024 | 10:24 AM

jollyrogr

Cargo Master

Joined: Feb 2020

Posts: 2,277

Likes: 949

This is the diagram from the 2020 service manual. Not sure if it helps.

Aug 11, 2025 | 11:06 AM

SavvyOR

1st Gear

Joined: Aug 2025

Posts: 1

Likes: 0

I have the exact same issue. I have the front of the 2020 F550 6.7 torn apart but I don't know if I wired the fan clutch correctly.

I have this diagram but not the end that goes into the clutch. I've seen two different diagrams. So I don't want to put it back together until I'm sure I've got it right. I also have two pigtails that plug into the clutch but they are wired different. One pin 2 is blank and the other pin 3 is blank.

These are the voltages I have at each pin with ignition on:

3.51
5.04
11.41
12.06

So I just need to know where they go on the clutch?

Any help will be most appreciated!

This is my RV and I'm stuck until I can get this resolved.