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Best mower fuel filter and why

#1

S

slomo

These are window screen media types. Might stop a number 2 pencil. Waste of money.
1686783376408.png
This style you can't verify the cartridge is sealed proper or not. On the fence about these.
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These are supposed to be good. Never used one. What is the micron level on these?
1686783540780.png

Another I haven't used. Any good???
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#2

S

slomo

Any good?
1686783642072.png1686783642072.png1686783937119.png


#3

M

MParr

Gravity feed?
Carbureted with fuel pump?
EFI with fuel pump?
The Kohler 24 050 13-S1 is my choice for carbureted with pulse pump engines.


#4

Scrubcadet10

Scrubcadet10

I use the WHITE briggs pancake filter on gravity feed engines and a Wix 33011 on pump feed.


#5

R

Rivets

I use the red Briggs filter on gravity feed engines and the white Briggs filter on engines with a fuel pump. The red disc-type filters are 150 micron, and the white (or light grey) disc-type filters are 75 micron. Both of them have brass screens in them and are for gravity feed applications. The bigger cylindrical plastic filters with the paper element inside are 60 micron, and the bigger cylindrical metal filters are 10 micron. Both of these are used in fuel pump applications.


#6

B

bertsmobile1

I use none of the above except on walk behinds where I use the pancake type because of space restrictions .
The sintered bronze filters are really good and can be backwashed I use them on my vintage motorcycles
I use metal cased ones on fire pump for obvious reason
Injected ones of course need a pressure tight filter if it is after the pressure pump so again a metal case job

All the rest get a 75µ long element filter that I buy directly from the factory in China in boxes of 200 because they cost 45¢ each delivered so I can sell them for $ 4.50 which is cheaper than any aftermarket filter the customer can buy thus I make a good mark up and they get a discount of $ 2.00 to $ 5.00 on the branded filter , win win win .
I have found these to work fine on just about everything .
The paper element types have 2 different constructions
On one the outlet is at the very end of the filter housing so these do not tend to get an airlock in them
The others have an outlet tube that protrudes inside the paper element so they will be subject to air locking unless fitted outlet side down

As Rivets already mentioned, there is no BEST just the right one or the job at hand
And like oil filter there will be a lot of opinion by a lot of people who have never thought it through
In reality the filter must have a flow rate higher than the carburettor, have a mesh size smaller than the main jet and hopefully smaller than the smallest particle that will cause the needle valve to fail
So almost any will do


#7

Scrubcadet10

Scrubcadet10

@Hammermechanicman
My Fuel Filter is better than your fuel filter.


#8

Hammermechanicman

Hammermechanicman

Scrubcadet10 said:
@Hammermechanicman
My Fuel Filter is better than your fuel filter.
Click to expand...
LOL 😂


#9

Hammermechanicman

Hammermechanicman

Goes on everything with a fuel pump.
Screenshot_20230614-231217_Chrome.jpg


#10

Tiger Small Engine

Tiger Small Engine

Hammermechanicman said:
Goes on everything with a fuel pump.
View attachment 65149
Click to expand...
Red pancake filter on gravity fed tanks, Chinese see through paper filter on fuel pump. Cost around $1.00 and sell for $5.00. More important than cost is having in stock, changing regularly, and durability. Also install red fuel shut off valve on as much equipment as possible, and educate customer on how to use.


#11

StarTech

StarTech

Hammermechanicman said:
Goes on everything with a fuel pump.
View attachment 65149
Click to expand...
Personally I don't like the looks of those Stens filters as the elements looks shoved in or crumpled. Kinda looks some of the UPS packages I get where it looks the driver stepped on the package. Really don't know if he filter element is torn or not on those. Probably will switch to another filter.


#12

StarTech

StarTech

Tiger Small Engine said:
Red pancake filter on gravity fed tanks, Chinese see through paper filter on fuel pump. Cost around $1.00 and sell for $5.00. More important than cost is having in stock, changing regularly, and durability. Also install red fuel shut off valve on as much equipment as possible, and educate customer on how to use.
Click to expand...
And I have used the paper filters on gravity systems here. I personally have one on my mower for several years until I swap out the engine to a larger one that came with a fuel pump. What matters is micron filtering level. You can get by with 25 micron on gravity systems but you do need something around 10-15 microns when fuel pumps are involved. Just provides cleaner fuel to carburetor.


#13

Hammermechanicman

Hammermechanicman

They say made in Israel. I have had new mowers including JD where I am the first to change the OEM filter and they say made in Israel on them. I have put over a hundred of them on mowers with no problems. These have the barb on the 1/4" end. Holds fuel line way better than the smooth barbless ones.


#14

StarTech

StarTech

Hammermechanicman said:
They say made in Israel. I have had new mowers including JD where I am the first to change the OEM filter and they say made in Israel on them. I have put over a hundred of them on mowers with no problems. These have the barb on the 1/4" end. Holds fuel line way better than the smooth barbless ones.
Click to expand...
Now those barbless ones were sent to me years ago and were a total failure as the fuel lines would not stay on the straight fittings.

And I know the Stens filter says "Made in Israel" but still poorly done. I was used to ones from Sunbelt (A&I). Even the paper looks different.

And barbed are for both 1/4 and 5/16 lines.

Sometime you just have to pay a little more for a better constructed filter.


#15

B

bertsmobile1

Provided they are sourced through a reputable wholesaler they should be fine.
Just like spark plugs 100% of them get pressure & flow tested as they come off the production line
Usually with very finely filtered air
So I doubt that any of the Stens, Rotary, Prime Line or Oregon ones would be bad .
But again they are just filters and mowers got on fine for decades without them .
I rarely see a carb full of crud that the filter should have removed and now that most tanks are plastic there is no fine rust to collect


#16

StarTech

StarTech

Boy I wish that was the case here. But stupid operators will use open containers that has grass clippings, insects, dirt, and other items in them; plus with ethanol fuels, water. Just recently cleaned a ZTR grass catcher engine's carburetor that was full of grass. A 10-25 micron filter can stop water at times.


#17

S

slomo

MParr said:
Gravity feed?
Carbureted with fuel pump?
EFI with fuel pump?
The Kohler 24 050 13-S1 is my choice for carbureted with pulse pump engines.
Click to expand...
Either gravity or a pump doesn't matter. Carbs for sure. Not many EFI mowers out there. Yes there are some but not near the numbers of carbed ones.


#18

S

slomo

Scrubcadet10 said:
I use the WHITE briggs pancake filter on gravity feed engines and a Wix 33011 on pump feed.
Click to expand...
Look inside the next white Briggs pancake. I know the red ones are just like window screen. Are the white ones the same?


#19

S

slomo

I know the small cellulose clear jobs are okay on a push mower gravity job. Red Briggs are a joke. Think I'm going to try the phospho bronze jobs next.

I've seen a couple carb bowls with a lot of trash almost like there was no filter installed. Those clear paper jobs probably from the mainland??


#20

M

MParr

slomo said:
Look inside the next white Briggs pancake. I know the red ones are just like window screen. Are the white ones the same?
Click to expand...
The red pancake is 150 micron for gravity feed.
The white pancake is 75 microns and listed for fuel pumps. Grain of salt.
Most residential push mowers don’t even come with a fuel filter.
The Briggs cylinder type is 40 microns. For fuel pump. There is a similar Briggs filter with a 7-11 micron rating.
The Kohler I listed above is 9-12 microns with extra capacity. Use with fuel pumps and Kohler Command Pro EFI engines.


#21

Scrubcadet10

Scrubcadet10

slomo said:
Look inside the next white Briggs pancake. I know the red ones are just like window screen. Are the white ones the same?
Click to expand...
the white ones use the screen, but it's smaller. it'll catch your grass debris and smaller stuff than the red ones. i think theyre 70 micron.


#22

MarineBob

MarineBob

I have used the cylindrical clear filters for a long while on lawn tractors. Seems to work well on gravity feed line. Cheap and east to replace. I put a shut off in the line just before the filter


#23

F

Freddie21

Check this out:



#24

B

BCSguyd

Hammermechanicman said:
Goes on everything with a fuel pump.
View attachment 65149
Click to expand...
This is the exact filter we used at the shop I worked at. We only used it if the unit had a fuel pump. If it was gravity flow, we used a Stens version of the red pancake filter in the first post. (I don't know the actual micron rating for that filter).

Edit: the reason we used the screen-type filter when the unit had no pump was because we had some units shut down from lack of fuel. The flow through the pleated filter just isn't enough sometimes to keep a carburetor supplied with fuel. There are times when it might work, but after a few mowers coming back from running out of fuel with fuel in the tank, our policy to not put pleated filters in front of an engine without a fuel pump


#25

L

LMPPLUS

slomo said:
These are window screen media types. Might stop a number 2 pencil. Waste of money.
View attachment 65137
This style you can't verify the cartridge is sealed proper or not. On the fence about these.
View attachment 65138

These are supposed to be good. Never used one. What is the micron level on these?
View attachment 65139

Another I haven't used. Any good???
View attachment 65140
Click to expand...


#26

B

bertsmobile1

Freddie21 said:
Check this out:

Click to expand...
Yet another You Tube video supposed to be comprehensive yet sadly lacking unless you have no understanding of SI units of measurement .
A hair will not pass through the metal screen unless it arrives dead square on which would never happen so not exactly truthful
And o course he seems to think that the paper filters have strait holes in them rather than a contorted passage and despite what he said there is no way a grass blade can pass through one
A tiny bit above all of the can opener oil filter videos but only just so at 22 minutes a waste of 20 minuted but it does earn him about 0.5¢


#27

S

slomo

Just wished all mowers had some kind of filter to slow down carb issues. Our s_ _t fuel is bad enough.....


#28

D

Davenj4f

slomo said:
These are window screen media types. Might stop a number 2 pencil. Waste of money.
View attachment 65137
This style you can't verify the cartridge is sealed proper or not. On the fence about these.
View attachment 65138

These are supposed to be good. Never used one. What is the micron level on these?
View attachment 65139

Another I haven't used. Any good???
View attachment 65140
Click to expand...
I use R12T filters on my mowers and backhoe. Easy to change, and also traps water. Filters are all over Amazon.


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