Cat Adapter for the 15/16

LBZ

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Jul 2, 2007
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I was looking and all the people that sell the cat fuel filter adapter only list them as working up to 2014. Are the newer trucks different and they won't fit or are they the same and people just haven't updated their websites?
 

clrussell

pro-procrastinator
Sep 23, 2013
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Wish all the hate of cat filters not having a water separator and cp4 failures I'd just stick with a delco filter.

They should be the same adapter though because the delco filter is the same one
 

kiwilml

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Nov 4, 2015
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Yeah I agree.. If you do anything I'd say get a fass or airdog.. That'll help better to keep water and trash out of your fuel system and maybe make that cp4 a little happier.. But honestly I wouldn't worry about it if you don't tune the truck..
 

CarolinaHD

Member
Feb 8, 2011
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I use the Donaldson p553203 (p553207 is longer) water separator with my cat adapter. They can be had for around $18- $23. Don't run the cat filter by itself.

Nictane lists his filter head fitting up to 2015 but requires the billet spacer to move it away from the engine. I wouldn't see why it would fit a 2016, you should call him up and find out for the rest of us :thumb:


http://nicktane.com/osc/product_info.php?cPath=22&products_id=51
 

LBZ

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Since my first '05 and countless tanks of rig fuel to today not once have I ever had a water in fuel light or ever drained a drop of water from any filters. Not worried about running the Cat filter by itself. Thanks for the info though guys.
 

NC-smokinlmm

<<<Future tuna killer
May 29, 2011
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Bad idea with cp4. They struggle enough without extra vaccum on the line and no water separation. The cp3 can handle a little moisture the cp4 just eats itself almost instantly...
 

LBZ

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Sensor for water? 90% or better I've seen water in the bowl of other trucks and never once set the water in fuel light on. Also heard the same from guys here.

IMO your better off running a water blocker cartridge style filter and water seperator with a complete glass housing so you can see what is going with your incoming fuel.
 

kidturbo

Piston Tester
Jul 21, 2010
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Exactly, reason I'm looking for a Racor or Donaldson filter setup to replace the stock separator filter on the FASS. I called them about it. While they said they'd seen it done before, didn't have the part#.

Since using 220gph pumps feeding from a 300gal fuel tank in a boat, a good separator with inspection bowl and sensor is a must. Typically Racor is the standard in marine diesel setups. So looking for something like these. Just no good cross ref from the FASS numbers.

p569758-016-541.jpg


MAR-REPLB-OW-L2-2.jpg
 

jlawles2

Well-known member
Jan 28, 2010
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IIRC Cat has a water separator setup with a clear bowl and a water sensor. You may need to either download the full Cat filter catalogue or find a good parts guy that either knows the part number or is willing to look.
 

NC-smokinlmm

<<<Future tuna killer
May 29, 2011
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I starting using the tall yamaha fuel separator filters, the racor bowl type filters have issues with bowl warpage and sealing. Not to mention the housings are made of pot metal and start to corrode in weeks of install...