fuel filters

lacabrera · **Posted:** Sun Nov 01, 2015 12:44 pm

Winters on its way and going to give the motor a quick service. My older 2.8 export had a 2 micron fuel filter (racor) My 2005 has the screw on version but I think I am correct in thinking its more like a 10 micron filter. I don't wont to add a second filter head but wondered if you can buy a 2 micron filter that will just replace the standard one. I have a lift pump installed not that it should make much difference as my older jeep had a 2 micron filter with no lift pump. All the filters I have looked at don't say what size they are.

WWDiesel · **Posted:** Sun Nov 01, 2015 9:28 pm

Unfortunately I never found a 2 micron filter that would fit the Jeep CRD OEM filter head. The Mopar OEM filter and most equivalents are 20 micron at best and quickly degrades from there.
I did find and installed a Donaldson 11 micron filter (PN# P550588) that fits the OEM filter head but requires a different WIF sensor thread. In my case I installed the Donaldson Clear drain bowl (PN# P569758) on the bottom of the filter along with the Twist & Drain valve and a Racor 1/2-20 UNF WIF Sensor (PN#P550865).
I also installed a Donaldson P551313 2 micron secondary filter using a Wix/NAPA filter base PN#24770/4770.
I added a fuel pressure gauge between the outlet side of the 2 micron filter and inlet of the CP3 injection pump to let me know if either filers start degrading. Pressure normally runs around 12-14 psig... I have had a similar duel filter setup on my Dodge Cummins for several years along with the fuel pressure gauge. :wink:

Pictures of the duel filter setup:

lacabrera · **Posted:** Mon Nov 02, 2015 3:58 pm

Thanks WWdiesel that's a good set up you have, I am trying to keep things looking standard under the hood. I going to try some other diesel forums and see if I can track down a 2 micron filter that's a straight swap. The mopar filter head is fairly standard size so I would guess a 2 micron filter exists some were. I do like your idea of the pressure gauge letting you know when the filters getting glogged

SargeIndustries · **Posted:** Tue Nov 03, 2015 3:58 pm

You can use a CAT 2 micron filter if you make an adapter to step the thread size up to their filter size. Just Loctite the collar on. I have been using CAT 1R-0749 filter for a few years now. You can find them on ebay for around 18+ dollars. It is a huge filter you may want to get the next size or two down. The 1R-0749 is designed to be used with a 13 liter motor...

Mountainman · **Posted:** Tue Nov 03, 2015 5:38 pm

SargeIndustries wrote:

You can use a CAT 2 micron filter if you make an adapter to step the thread size up to their filter size. Just Loctite the collar on. I have been using CAT 1R-0749 filter for a few years now. You can find them on ebay for around 18+ dollars. It is a huge filter you may want to get the next size or two down. The 1R-0749 is designed to be used with a 13 liter motor...

How much life you getting out of those long filters? Also, are you living with CEL's with your set up? Thanks for posting, I like the sound of a single two micron, and then add WWdiesels pressure monitor. As long as I can get good life out of them anyhow...

lacabrera · **Posted:** Wed Nov 04, 2015 11:58 am

Found this on the mann filter web site. Its 2 micron, longer and a little fatter but the sealing ring and thread size seems to match. Not sure if it has a thread in the bottom for the WIF sensor. http://catalog.mann-filter.com/EU/eng/c ... WK%20962~4

Mountainman · **Posted:** Wed Nov 04, 2015 12:48 pm

lacabrera wrote:

Found this on the mann filter web site. Its 2 micron, longer and a little fatter but the sealing ring and thread size seems to match. Not sure if it has a thread in the bottom for the WIF sensor. http://catalog.mann-filter.com/EU/eng/c ... WK%20962~4

Nice, it sounds like even if it does have the WIF port, we could just change it once a year like the other guy, and not worry? It's so much less $$ than the mopar ones that $20 a year sounds pretty good to me. Actually, looks more like $18 if you buy 5 to get free shipping.
I wonder if my one injector that acts up when the engine is cold is damaged from small particle erosion...

lacabrera · **Posted:** Wed Nov 04, 2015 1:30 pm

Just ordered one just under £12 including postage, bargain if it fits, let you know in a few days.

Mountainman · **Posted:** Wed Nov 04, 2015 2:10 pm

Many thanks! :pepper:

SargeIndustries · **Posted:** Wed Nov 04, 2015 3:37 pm

Mountainman wrote:

SargeIndustries wrote:

You can use a CAT 2 micron filter if you make an adapter to step the thread size up to their filter size. Just Loctite the collar on. I have been using CAT 1R-0749 filter for a few years now. You can find them on ebay for around 18+ dollars. It is a huge filter you may want to get the next size or two down. The 1R-0749 is designed to be used with a 13 liter motor...

How much life you getting out of those long filters? Also, are you living with CEL's with your set up? Thanks for posting, I like the sound of a single two micron, and then add WWdiesels pressure monitor. As long as I can get good life out of them anyhow...

I get a lot of life out of mine. You can go well over a year. There is so much surface area on that big filter it would take forever to plug up. Got a batch of bad fuel once and decided that was a good time to change it. The CEL is not on in my vehicle for water in fuel. I haven't done anything special. The electrical plug is just laying in the engine compartment.

WWDiesel · **Posted:** Wed Nov 04, 2015 4:27 pm

SargeIndustries wrote:

You can use a CAT 2 micron filter if you make an adapter to step the thread size up to their filter size. Just Loctite the collar on. I have been using CAT 1R-0749 filter for a few years now. You can find them on ebay for around 18+ dollars. It is a huge filter you may want to get the next size or two down. The 1R-0749 is designed to be used with a 13 liter motor...

Most 2 micron filters that I researched early on before settling on the 11 micron Donaldson does not have a provision for the WIF sensor. The threads on the OEM filter head and WIF sensor are a bit oddball as compared to many fuel filters/WIF sensors out there. I will post the thread sizes later when I get home tonight.
As Sarge stated, if you have or can make an adapter that will allow you to use the larger thread fuel filters, your choices go up exponentially. I actually have one of these adapters that I toyed with using that one of my forum buddies sent me that I never did use as I opted to stay with the OEM threads just in case I ever had to use an OEM filter again.
The Donaldson 11 micron primary filter fits the OEM filter head, but does require a 1/2-13 thread WIF sensor so I purchased a Racor WIF sensor and made an adapter that plugs into the OEM WIF plug-in.
Racor also makes a filter head that allows some choices on micron ratings that will take the place of the OEM filter head and has a place for the fuel heater according one of the forum members....
The two fuel filter setup is ideal as the primary filter is also a water separator by design with some filtering capabilities and the secondary filter catches any fine particles missed by the primary filter! Those fine micron particles are what can damage your CP3 pump and / or injectors!!!
Also due to the location of the OEM filter head, the length of the filter is restricted due to the ABS parts under it. That is why I mounted the secondary 2 micron filter up much higher to allow the much taller and larger final filter... :idea:

Good fine micron Fuel filters are the cheapest insurance you will ever buy for your CP3 pump and injectors... :wink:

lacabrera · **Posted:** Wed Nov 04, 2015 4:37 pm

lacabrera wrote:

Found this on the mann filter web site. Its 2 micron, longer and a little fatter but the sealing ring and thread size seems to match. Not sure if it has a thread in the bottom for the WIF sensor. http://catalog.mann-filter.com/EU/eng/c ... WK%20962~4

This may not be the filter to go for? just taken a look at the Mann spec sheet. Water separation is at best 20% compared with http://catalog.mann-filter.com/EU/eng/c ... K%20962~12 water separation 98.5% ummm 3 times the price but I guess you get what you pay for.

Mountainman · **Posted:** Wed Nov 04, 2015 5:28 pm

Great info, thank you! hmm, I wonder if any of the good water separator filter aren't 3x the $$ ?
I wonder how much water the CAT filter traps?

So much to learn about these Jeeps...

CATCRD · **Posted:** Wed Nov 04, 2015 8:24 pm

Does anyone here actually see their WIF light go on in normal service? I've been running the CAT filters for the last 50k with the WIF plug just dangling there. Just wondering how much use the WIF sensor actually is if you fill up from quality fuel sources. Yes you could argue the sensor is nice for a just-in-case mentality, I'm just wondering in terms of real numbers, how many members see the WIF light ever go on?

WWDiesel · **Posted:** Wed Nov 04, 2015 8:55 pm

These are the filter specs I have on file:

OEM Filter Head
Primary OEM Fuel / Water Separator Filters Sensor Port Thread: M12 x 1.5
Mounting Thread Size: 16 X1.5 MM
Gasket dia. 70mm x 63mm
OEM Mopar PN#52129238AA Micron Rating 20

Primary Fuel Filter – Non OEM Sensor Port Thread: ½ x 20 IN
Filter Mounting Thread Size: 16 X1.5 MM Micron Rating (same as OEM)
Donaldson filter *PN#P550588
Sensor Port Thread ½ x 20 11 micron @ 99% efficiency
(Beta 75 or higher) Reliable Industries $9.39
*This is the filter I am using with the clear bowl drain and Racor WIF.

Donaldson Clear drain bowl PN#P569758 Reliable Industries
Donaldson Clear drain bowl Twist & Drain Valve with 1/2"-20 UNF Threaded Port Sensor PN#P550865 Reliable Industries
Racor 1/2"-20 UNF WIF Sensor PN#RK 30964

*Donaldson Clear drain bowl, fits both filter and drain kit above
http://www.donaldson.com/en/engine/supp ... 070044.pdf
Page 57

Secondary 2 Micron Fuel Filter
Mounting Thread Size: 1-14 UN Micron Rating
Baldwin PN#BF7633 7
Cat PN#1R-0750 3
Donaldson *PN#P551313 3 micron@99% efficiency(Beta 75 or higher)
*This is the secondary filter I am using with the Wix/NAPA filter head.

I have many more applicable filter numbers if needed... :wink:

Hope this helps any thats interested in better fuel filtration... :mrgreen:

WWDiesel · **Posted:** Wed Nov 04, 2015 9:49 pm

If you are the least bit skeptical or concerned on the why's of the need for good fuel filtration in our Jeep CRD's, please read and digest these articles:
It may change your thinking; it did mine, and that is why I am running the duel filter setup.... :shock:

http://nicktane.com/images/HDT_article_10-10-03.pdf
http://nicktane.com/images/February%20HDT%20Fuel%20Article%20Part%20II.pdf
Many thanks to Ranger1 for the education...

Study the facts and make your own choices... :wink:

lacabrera · **Posted:** Thu Nov 05, 2015 6:26 am

CATCRD wrote:

Does anyone here actually see their WIF light go on in normal service? I've been running the CAT filters for the last 50k with the WIF plug just dangling there. Just wondering how much use the WIF sensor actually is if you fill up from quality fuel sources. Yes you could argue the sensor is nice for a just-in-case mentality, I'm just wondering in terms of real numbers, how many members see the WIF light ever go on?

75% of diesel cars/trucks I have worked on have no WIF sensor. I guess Jeep added it for users that don't service they vehicles.

lacabrera · **Posted:** Thu Nov 05, 2015 6:36 am

WWDiesel wrote:

These are the filter specs I have on file:

OEM Filter Head
Primary OEM Fuel / Water Separator Filters Sensor Port Thread: M12 x 1.5
Mounting Thread Size: 16 X1.5 MM
Gasket dia. 70mm x 63mm
OEM Mopar PN#52129238AA Micron Rating 20

Primary Fuel Filter – Non OEM Sensor Port Thread: ½ x 20 IN
Filter Mounting Thread Size: 16 X1.5 MM Micron Rating (same as OEM)
Donaldson filter *PN#P550588
Sensor Port Thread ½ x 20 11 micron @ 99% efficiency
(Beta 75 or higher) Reliable Industries $9.39
*This is the filter I am using with the clear bowl drain and Racor WIF.

Donaldson Clear drain bowl PN#P569758 Reliable Industries
Donaldson Clear drain bowl Twist & Drain Valve with 1/2"-20 UNF Threaded Port Sensor PN#P550865 Reliable Industries
Racor 1/2"-20 UNF WIF Sensor PN#RK 30964

*Donaldson Clear drain bowl, fits both filter and drain kit above
http://www.donaldson.com/en/engine/supp ... 070044.pdf
Page 57

Secondary 2 Micron Fuel Filter
Mounting Thread Size: 1-14 UN Micron Rating
Baldwin PN#BF7633 7
Cat PN#1R-0750 3
Donaldson *PN#P551313 3 micron@99% efficiency(Beta 75 or higher)
*This is the secondary filter I am using with the Wix/NAPA filter head.

I have many more applicable filter numbers if needed... :wink:

Hope this helps any thats interested in better fuel filtration... :mrgreen:

Thanks for the info there is some play with regard to the sealing washer doesn't have to be 70mm 63mm. As long as the sealing washer sits near the centre of the plastic puk/heater it should seal. M16 x 1.5 thread size is probably the most common size for a spin on fuel filter. if I had a penny for every one I have replaced lol. Worked on many twin filter set ups on tractors. yes like them but as mentioned I wont mine to look as standard as possible.

95Z28A4 · **Joined:** Sun Mar 30, 2014 9:53 am **Posts:** 297

lacabrera wrote:

Found this on the mann filter web site. Its 2 micron, longer and a little fatter but the sealing ring and thread size seems to match. Not sure if it has a thread in the bottom for the WIF sensor. http://catalog.mann-filter.com/EU/eng/c ... WK%20962~4

I searched for specs for the Mann WK 962/4, but could not find the micron rating anywhere. Where did you find the specs for the WK 962/4?

lacabrera · **Posted:** Thu Nov 05, 2015 7:05 am

95Z28A4 wrote:

lacabrera wrote:

Found this on the mann filter web site. Its 2 micron, longer and a little fatter but the sealing ring and thread size seems to match. Not sure if it has a thread in the bottom for the WIF sensor. http://catalog.mann-filter.com/EU/eng/c ... WK%20962~4

I searched for specs for the Mann WK 962/4, but could not find the micron rating anywhere. Where did you find the specs for the WK 962/4?

Found it on a cross reference. Searched for 2 micron filters and the 962/4 came up.https://www.google.co.uk/url?sa=t&rct=j ... 4449,d.ZWU
It dosnt show micron sizes but at the bottom of the spec sheet the filters are tested with 3-5 micrometre particles any filter with a more than 5 microns the particles would pass through the filter. If my maths correct 1 micrometre = I micron
The filter WK 962/4 is fine for a twin setup giving good particle filtration but is not the best at separating any water from the fuel.
WDK 962/12 seems to be the better filter if you plan on doing a straight swap for a standard setup.

fuel filters

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