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Old 11-01-2014, 04:45 PM   #1
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Cummins 350 ISC fuel filter removal

We have a 2002 Newmar Dutchstar with a 350 Cummins diesel on a Spartan chassis. Looking at the fuel filter/water separator it appears to be very cramped and probably impossible to get a strap type filter wrench on it. What type of wrench is needed? I was thinking about a cap type if they make one.

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Old 11-01-2014, 05:32 PM   #2
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If it is like our 99ds , that I just changed both fuel filters on , I used a strap type wrench which you tighten with a drive socket. You can not use a cap wrench on ours because it has a drain and an electrical connection on the bottom. Hope this helps.

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Old 11-02-2014, 08:43 AM   #3
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You will probably get better results if your question is over in the Spartan Chassis area of the forum. Maybe one of the Moderators will move it for you.
Joe & Annette

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Old 11-02-2014, 09:08 PM   #4
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I bought a large metal band type from NAPA for the oil filter, about $40. I also bought a bigger one for the air dryer and it was about $50. Both take a ˝" drive and work very well. Somo of the metal band ones will fit the fuel filter though but I think I did use a fabric strap wrench on the fuel filter last time.
I've tried the strap wrenches and actually had them tear before the filter moved.
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Old 11-02-2014, 09:24 PM   #5
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Metal band type filter wrench works for me.
'02 Ultimate Advantage 40J Spartan MM - Cummins ISC
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Old 11-05-2014, 08:57 PM   #6
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I carry a nylon strap wrench bought at NAPA. I used it to remove the original air dryer filter (1999) the original owner never changed. It was stuck, I had to use a 1/2" breaker bar on the strap wrench to loosen the filter.
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG retired;Good Sam Life member,FMCA."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution. "Abraham Lincoln"
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Old 11-11-2014, 05:09 PM   #7
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That is poor place for a fuel filter. Took two of us one on top one underneath. I have the same coach you do. coveralls gloves hit the shower when your done
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Old 11-11-2014, 05:38 PM   #8
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I feel your pain. I hope to relocate mine this spring. I have two filters. one easy to get, the on engine one is a bad one. The sensor plug and drain thing cach on the 12v cables that go to the starter. No slack in them or I would relocate. I disconnect the Batts so I don't have contact with the filter when removing. May not be possible but....
My tool of choice is a visegrip type fiter tool. Works in the tight spot that is accessed by lifting the bed and engine hatch. Clamp it on an get it started turning then hands. Getting the new one on is a task.

Need to get it relocated.Really just new fuel hoses and new mounting spot somewhere accessible.

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cummins, fuel, removal

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