Fl820 oil filters shrinking!

Killa

Active Member
Jul 9, 2007
1,006
56
49
just read from other site. I might go grap a few at my local walmart before they change to midget version. Or use mobil 1 and never look back.
fl820s.webp

Filter Diameter (in.)
3.78
3.78
Filter Length (in.)
4.04 OLD
3.72 NEW
Thread Size (mm / in.)
22 / 1.5
22 / 1.5
Anti Drain Back Valve Material
Silicone
Silicone
Efficiency @ 20 Microns (%)
80%
80%
Capacity (grams)
8
8
Burst Pressure (PSI)
200
200

all this just to save a few buck ? wtf
 
So they're just as efficient, but .32" shorter? I don't see a problem with that. It's probably just a different supplier, but still made to specifications supplied by Ford.
 
Strange that they carry exactly the same part number. Typically, in engineering land, a new p/n is warranted when form, fit and/or function changes.

Perhaps Ford sees them as interchangeable, that any application using the short one will accept the old, long one even if they're harder to swap.
 
Strange that they carry exactly the same part number. Typically, in engineering land, a new p/n is warranted when form, fit and/or function changes.

Perhaps Ford sees them as interchangeable, that any application using the short one will accept the old, long one even if they're harder to swap.

I agree. It should at least get a new revision number
 
Strange that they carry exactly the same part number. Typically, in engineering land, a new p/n is warranted when form, fit and/or function changes.

Perhaps Ford sees them as interchangeable, that any application using the short one will accept the old, long one even if they're harder to swap.

they probably didn't want to change the part # because it would confuse all the noobs at autozone. but when i last bought my filter they had both types there.
 
they probably didn't want to change the part # because it would confuse all the noobs at autozone. but when i last bought my filter they had both types there.


I'm not talking about the Fl-820S number. That can stay

But the F1AZ-6731-BD number should be revised. -BD is Ford's internal revision code. Usually 1st time parts are - AA. i think a change in external lenght definitely justifies a revision number
 
I'm not talking about the Fl-820S number. That can stay

But the F1AZ-6731-BD number should be revised. -BD is Ford's internal revision code. Usually 1st time parts are - AA. i think a change in external lenght definitely justifies a revision number

Yup. From an engineering POV, the bills of material for the short and the long are different: Different stampings are used for the outer case or there's an additional trimming step to shorten the long stamping down. As well, the tooling and process required to make the long and the short would be different, from the equipment handling the filters during assembly to the robots spraying them with powdercoat.

I wouldn't think Ford would care all that much about NAPA and Autozone. I'm surprised that the supplier of the filter itself didn't demand some sort of revision to the filter part number due to the physical differences. How does Ford track this? How does it know what's been installed when the part numbers are the same?
 
This is the memo we got from Ford


April 6, 2009

To: All Ford and Lincoln Mercury Dealers, Parts Departments, Service Departments
Subject: Motorcraft Oil Filter Product Change – FL820S

MOTORCRAFT OIL FILTER PRODUCT CHANGE FOR THE FL820S
The length of Motorcraft oil filter FL-820S (F1AZ-6731-BD) is being reduced, allowing for easier removal and installation. There are no changes to the performance attributes of the oil filter.

The smaller filter size will also result in the pallet quantity being increased by one layer or 120 pieces.

The chart below provides a summary of the changes:

Motorcraft 820S

Filter Specifications
Current
New

Filter Diameter (in.)
3.78
3.78

Filter Length (in.)
4.04
3.72

Thread Size (mm / in.)
22 / 1.5
22 / 1.5

Anti Drain Back Valve Material
Silicone
Silicone

Efficiency @ 20 Microns (%)
80%
80%

Capacity (grams)
8
8

Burst Pressure (PSI)
200
200







Pallet Changes



Carton Quantity
12
12

Cartons per Layer
10
10

Layers per Pallet
9
10

Pieces per Pallet
1,080 pieces
1,200 pieces





Changes are in red





Attachment provides visual comparisons of the filter and packaging changes.

QUESTIONS
Contact your Parts and Service Zone Manager or Shane Nelson, [email protected]; (313)845-0465.