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Best brand and place to get fuel filters

75-K5

75-K5

3/4 ton status
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Anderson, Indiana
Does anybody have a favorite place to get their spin-on fuel filters? Is Racor hands-down the best? What is a good size to run, 2 micron? This is what I've gathered from searches but can't seem to find where is a good place to buy them.

My current filter setup is a Purolator in-line filter before the electric pump to get all junk out, then the spin-on style filter after the pump. Do I need any more filtration than this if I run a very fine element in the spin-on? Keep in mind I'm starting with a brand new poly fuel cell with foam filling, all new fuel line, and will be running B100 biodiesel only in warm weather so no risk for clogging.

The # on the filter I have now is a Fram P3710 but I definitely do not want to buy Fram again.

Any tips on where to buy filters? Thanks!
 
75-K5 said:
Can anybody help me with this? Thanks :)
Click to expand...
This filter you have was the main filter, and the common filtration size is 10 micron for this one.
there is a secondary filter in the lifter valley under the intake, that one is supposed to be a 2 micron.
I guess if you are using it as secondary with one before it it would be fine with a 2 micron, if they offer them in that size.
I would go with Racor or a known factory filter (we just replaced some filters on a CAT engine and used CAT filters)
 
Strange, I don't recall a filter in the lifter valley when I disassembled the engine.:confused: Here's what it looked like when I took it apart, where should the filter be/have been?

Phase2-022.jpg



Phase2-023.jpg



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Phase2-025.jpg


I'm still not sure where I can buy a 2 micron spin-on Racor filter. Gomer's Diesel (usdieselparts.com) has filters, but it looks like they only sell a complete filter kit, not a replacement spin-on cartridge. I have a Purolator F20011 prefilter...hopefully the diesel fuel won't melt it. I can't seem to find what micron it is...I'm thinking 20, will that be a problem?

Sorry for the dumb questions, just trying to do this right the first time.:wink1:
 
There was a filter attached to the back of the intake manifold but I thought it was instead of the one on the firewall. I don't know about a secondary one.

2 micron is a good size. I think stock is 10 micron. Any major brand is supposed to be good. Racor is a good brand. they come in different sizes & microns. Cat filters are made by somebody else (Racor?). I think the best prices are on the internet and by the case (12).

Sorry if this isn't much. I'm not there yet in my build:o
 
BKinzey said:
There was a filter attached to the back of the intake manifold but I thought it was instead of the one on the firewall. I don't know about a secondary one.

2 micron is a good size. I think stock is 10 micron. Any major brand is supposed to be good. Racor is a good brand. they come in different sizes & microns. Cat filters are made by somebody else (Racor?). I think the best prices are on the internet and by the case (12).

Sorry if this isn't much. I'm not there yet in my build:o
Click to expand...

I will take a pic of the setup I have, it's a smaller secondary filter hat fits under the intake.
A 2 micron with nothing before it will not last very long, you need to filte in stages a big filter with 10 or 20 micron then a smaller filter with 2 micron, you will rplace the primay more often so you wan it at a convenient location, the secondary could be in a tight spot since you don't need to replace it as often, although with the new ULSD problems with bacteria you might want to just for safety.:D
And don't take my info as anything more than hearsay, I am still learning about diesels I have only owned them for the past 6 years but I research a lot and have half a dozen of them from fifferent generations.:D
 
I'm running B100 biodiesel with a brand new fuel system (tank, lines, filters, etc.) so hopefully the 20 micron prefilter and 2 micron secondary (spin-on) will be sufficient. I can't seem to find where I can cross reference my Fram part number with the Racor # though.:confused: Seems like all Racor wants to sell is the complete filter unit, when all I need is a replacement element.
 
75-K5 said:
I'm running B100 biodiesel with a brand new fuel system (tank, lines, filters, etc.) so hopefully the 20 micron prefilter and 2 micron secondary (spin-on) will be sufficient. I can't seem to find where I can cross reference my Fram part number with the Racor # though.:confused: Seems like all Racor wants to sell is the complete filter unit, when all I need is a replacement element.
Click to expand...

My guess from the 3710 that your filter now is a 10 micron.:D
 
Haha, good guess.:wink1: My problem is though (I know I'm dumbing you guys to death, sorry) where can I find what model # of Racor element I need in order to have the correct diameter, thread size, etc. that will fit on my current filter assembly? All I can find is the complete Racor units with element, housing, and everything. I just want the element!:o
 
Some how I hope to put the primary 10 micron filter somewhere between the fuel tank & where it hits the frame on the passenger side. Then a electric fuel pump to push the fuel all the way to the firewall where a 2 micron filter / water separator, heater, and lift pump will be.
 
75-K5 said:
Haha, good guess.:wink1: My problem is though (I know I'm dumbing you guys to death, sorry) where can I find what model # of Racor element I need in order to have the correct diameter, thread size, etc. that will fit on my current filter assembly? All I can find is the complete Racor units with element, housing, and everything. I just want the element!:o
Click to expand...

Well I am no help, I tried a search and came out empty. :confused:
I will keep looking though since eventually that is what I want, unless the smaller secondary I have is a 2 micron then maybe we can find somehing from that one.
i will let you know tomorrow when i check it out.
 
99% of boats run Racor primaries... Some engines, mostly Onan, Kohler gennies, run secondary Racors...

Take a pic of the filter, I'll tell ya what the replacement element # is...

standard marine diesel stuff run 30 mic primaries, 10 mic secondaries.. But most of the new electronic injected stuff run 10, then 2...

Can't beat Racor.....
 
75-K5 said:
Phase2-105.jpg


That's the Fram P3710, here's a stock pic, looking for the 2 micron replacement though:
Click to expand...

I checked the secondary filter and it was P3711
I have not checked the numbers yet, I guess I'll do that now. :laugh:
It is about 25% smaller in size and it goes just before the IP

Here is what I found on the secondary filter I have, half way thru the page Fram P3711:

http://www.okanaganfilter.com/cross_reference.html

And I found out it's a 10 micron, or at least the equivalent WIX 33358 is 10 micron.
 
I have a purolator 10 micron spin-on pre filter and a 2 micron racor after that...but it's on my K5 which is in storage. My Racor is the water separator type with the amber colored bowl that spins onto the bottom. I don't know if racor makes a 2 micron canister style filter. You may need the water separator housing and bowl to get that?

If my truck was closer I could just grab the numbers off of it for you. I'm gonna do a quick search in this forum though...i recall posting up my racor numbers before.

I may even have pic's. ;)

Rene
 
tRustyK5 said:
I have a purolator 10 micron spin-on pre filter and a 2 micron racor after that...but it's on my K5 which is in storage. My Racor is the water separator type with the amber colored bowl that spins onto the bottom. I don't know if racor makes a 2 micron canister style filter. You may need the water separator housing and bowl to get that?

If my truck was closer I could just grab the numbers off of it for you. I'm gonna do a quick search in this forum though...i recall posting up my racor numbers before.

I may even have pic's. ;)

Rene
Click to expand...

Would you by any chance have this one?

DSC00174.JPG

DSC00175.JPG
 
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