Socket size fuel filter

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Nov 29, 2012 | 10:47 AM

macguy

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Joined: Feb 2012

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Socket size fuel filter

Does anyone know socket size for both fuel filter and separator? Doing first change this weekend.

Nov 29, 2012 | 11:00 AM

gart0009

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Joined: Mar 2010

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I believe it is 32mm

Nov 29, 2012 | 11:19 AM

my996duc1

Elder User

Joined: Jun 2010

Posts: 501

Likes: 1

From: Anaheim, CA

32mm is what mine is.

I picked up a 32mm socket for a couple of bucks at Harbor Freight.
Figured it didn't need to be a name brand high strength socket since it will be used on plastic.

_

Nov 29, 2012 | 11:28 AM

Painted Horse

Lead Driver

Joined: Nov 2005

Posts: 5,247

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From: Kaysville Utah

I use a strap wrench. Heard too many stories of the nut breaking off and having to order and wait for a new housing, Since no dealers stock it.

Nov 30, 2012 | 06:29 AM

HossF250

Freshman User

Joined: Feb 2011

Posts: 32

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From: Mooresburg, TN

Quote:

Originally Posted by Painted Horse

I use a strap wrench. Heard too many stories of the nut breaking off and having to order and wait for a new housing, Since no dealers stock it.

I was one of those stories and since then I use a strap wrench. Its so much easier and I don't have to worry about the breaking the housing.

Nov 30, 2012 | 07:01 AM

macguy

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Joined: Feb 2012

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Quote:

Originally Posted by HossF250

I was one of those stories and since then I use a strap wrench. Its so much easier and I don't have to worry about the breaking the housing.

Do you strap around smaller diameter or larger? There isn't much room for the strap.

Oct 21, 2025 | 02:34 PM

davsco

1st Gear

Joined: Oct 2025

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my 2012 f250 has 32mm. i read to open the bleed screw just a hair while spinning the filter body.

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Oct 21, 2025 | 06:13 PM

Overkill2

FTE Legend

Joined: Mar 2017

Posts: 31,976

Likes: 9,200

From: Western NY

Quote:

Originally Posted by davsco

my 2012 f250 has 32mm. i read to open the bleed screw just a hair while spinning the filter body.

You resurrected an old thread but when you go to change the lower filter in the DFCM aka diesel fuel conditioning module as Ford calls it, you need to loosen it 3 full turns to break the suction before you open the drain plug or else it'll keep pulling fuel out the tank because it's still under pressure.