I want to put a small inline fuel filter on my tractor. The Wix 33002 says for gasoline only and gives another # for use with diesel.
Anyone know why?
Anyone know why?
Why can't I use a gasoline fuel filter for diesel
- Thread starter Chris142
- Start date
The micron rating of 20, the paper medium and the size of the filter would make it plug up too early I guess.
Mann-Hummel plastic inline prefilters have 20micron paper medium for the gasoline and 200micron nylon mesh for the diesel ones. *
Options:
Hengst H102WK - 150 micron
Mann-Hummel wk31/4 - 200micron
Wix 33007 -50 micron (?!)
Fram P4174 -125micron
These are all 8mm Inlet&Outlet ,straight.
For L-shaped & 8mm inlet-outlet cross reference Mann-Hummel wk31/5.
The engine has a secondary(fine) filter,correct?
*P.S. well not all of them. Some are noteceably "coarser" on the photos like this one
https://www.mann-filter.com/de-de/katalog/suchergebnisse/produkt.html/wk31/11(10)_mann-filter.html
Mann-Hummel plastic inline prefilters have 20micron paper medium for the gasoline and 200micron nylon mesh for the diesel ones. *
Options:
Hengst H102WK - 150 micron
Mann-Hummel wk31/4 - 200micron
Wix 33007 -50 micron (?!)
Fram P4174 -125micron
These are all 8mm Inlet&Outlet ,straight.
For L-shaped & 8mm inlet-outlet cross reference Mann-Hummel wk31/5.
The engine has a secondary(fine) filter,correct?
*P.S. well not all of them. Some are noteceably "coarser" on the photos like this one
https://www.mann-filter.com/de-de/katalog/suchergebnisse/produkt.html/wk31/11(10)_mann-filter.html
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JHZR2
Staff member
33972 is a 50um nylon mesh. All my diesels use a mesh or screen pre filter. I’d suspect they’re concerned about the lift pump straining too much and then affecting the IP base pressure.
dnewton3
Staff member
It would work just fine for a pre-filter. It's not that you "can't"; it's just not common.
In fact, some ag tractors do just that. I've seen them on Case/IH applications recently.
In fact, some ag tractors do just that. I've seen them on Case/IH applications recently.
Thing is it doesn't have media to handle moisture separation. Possibly too small of size. Need a high efficiency filter to clean diesel fuel properly. I wonder if Napa or the like could find you a replaceable inline diesel rated filter.
It uses this little thing for a fuel and water filter. Nothing else. I'm not deleting the water filter just adding another filter to stop dirt before it.
Generally speaking, every filter in a multistage system should be larger and/or coarser the farther upstream you go. Putting a tiny, restrictive pre-filter in front of the main water separator is not helpful and is more likely to harm than help.
Why are you feeling the need to add a prefilter? Is your existing filter not lasting long enough? Is it not sufficient to assure the proper life of pump and injectors?
This area is what I do professionally, I can help you solve a problem if you can state the problem you wish to solve.
Why are you feeling the need to add a prefilter? Is your existing filter not lasting long enough? Is it not sufficient to assure the proper life of pump and injectors?
This area is what I do professionally, I can help you solve a problem if you can state the problem you wish to solve.
This is important in a single stage system. If there are multiple stages, only one of those filters needs to separate water.
The oe element is a little pricy and I'd like to extend it's life as much as possible. I can buy cheap aftermarket replacements but I don't trust them.
Local dealer gets $35 for just the element.
Do you know the nominal micron rating and water separation rating of the OE filter? More importantly, do you know what the injection pump specs for max restriction and minimum fuel cleanliness are?
My experience is more with filters of this size:
But the basic ideas scale up and down the same.
(EDIT: the photo is a 5000hp 95L V16 powered generator making over 3500kW)
My experience is more with filters of this size:
But the basic ideas scale up and down the same.
(EDIT: the photo is a 5000hp 95L V16 powered generator making over 3500kW)
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Better to not prefilter ahead of your water separator. Better to have big droplets get to the WS media rather than break them up across any initial media. This is why WS is usually on the suction side of the pump...to not have the pump break up any droplets.
Get a $15 generic 1"-14 filter base and a Baldwin BF1212 and run that if you're really worried about it. That way you get an affordable WS as your primary with good enough filtration.
Get a $15 generic 1"-14 filter base and a Baldwin BF1212 and run that if you're really worried about it. That way you get an affordable WS as your primary with good enough filtration.
This is not a problem you should try to solve. Here's why:
The financial break-even point on any capacity upgrade is going to many, many hours down the road. That buys a lot of filters.
The end of the filter's life really comes down to how much restriction the fuel pump after the filter can tolerate. So you might be able to see where this is going. If you add pre-filtration that's efficient/fine enough to improve the life of the Kubota filter, you end up adding a bunch of restriction. You'll end up changing both filters and probably sooner than just a single filter.
IF you add a very low-restriction filter ahead of the Kubota filter, then you'll spend money and have effectively no change in the Kubota filter life.
So adding pre-filtration won't help you. And if you do a capacity upgrade by just replacing the small cheap Kubota filter with a higher performing, higher capacity unit, you'll end up with a dozen filter changes worth of money spent and never get your money out of the upgrade.
The only real cost effective upgrade here is to try to grab a filter head from a junkyard diesel pickup that's new enough to need good filtration and see if you can find a way to rig that filter into your supply. That will give you the ability to use larger, higher efficiency filtration without the high cost of buying whatever housing or head to use them.
It's simply not cost effective here to try to add any real capacity that matters when you consider the overall system life and requirements.
Buy a cheap metal mesh screen prefilter and use that if it help you feel better, but it's probably doing nothing to improve your filter life.
https://www.fleetguard.com/product/ff5079/01t5x000008FGZAAA4
I wish I could source a specific Fleetguard product for you-- I'm sure they have several. But their website is frankly one of the worst of any I've ever seen or used, and I'm embarrassed on behalf of my former colleagues there. It's exasperating how bad the Fleetguard site is, frankly. If you find anything useful there, it's by dumb luck.
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That's not quite the case anymore, but it could be depending on the actual filters in question.
Newer tech uses the prefiltration stages so make the tiny water droplets larger (via coalescing) and easier to filter out. But this requires both stages of filtration to be engineered specifically for ultra-high-efficiency water removal.
Fleet guard has several such systems but generally they are the domain of very large and expensive industrial equipment. Low cost engines get stuck with cheap filters and media and older tech.
Nobody is willing to pay for a $100 Nanonet element in a small tractor, even if it lasts 5x longer and filters 10x efficiency.
I'm about to impulse buy one and put it in my extra filter collection. Looks extremely useful.
Looks like the Fleetguard cross reference for this filter is here:
https://www.fleetguard.com/product/ff42106/01t5x000008FN99AAG
Seems like you can get it for $20 or less here:
https://www.ebay.com/itm/195785849788
Made in Taiwan too instead of China. Nice.
Yes, I wasn't certain how OPs tractor was set up or if they would use it before water separator so I included that important detail.
You'll need a diesel rated one after the OEM filter then or get another one of these before.
Can't find the efficiency rating.
Good enough I guess.
Is there efficiency numbers for the OE filter?
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