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Old 09-25-2013, 03:52 PM   #1
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Diesel Fuel Water Seperator ISL-400

All - I have an FS-1003 filter on my coach. I bought a bunch of spare filters from a fellow and he threw in an FS-1022 Fuel/water separator. I called Cummins and they said the two are not compatible. If anyone needs this unit, let me know, it's yours. I won't pay to ship it, so we have to hook up somewhere along the road.

But, I am curious, which one fits which coach, since the ISL-400 has been the standard engine for years, so lets do a survey to see what the differences are please.

If you want or need the other one let me know, we can work something out.
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Old 09-25-2013, 04:59 PM   #2
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I have the FS1212 on mine. But since these are remotely mounted and not engine mounted WRV must have decided which to use on what coach. I assume flow rates were the deciding factor.
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Old 09-25-2013, 07:03 PM   #3
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Monty, If your going to the Heritage rally I can sure use it.

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Old 09-25-2013, 08:04 PM   #4
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Wayne--assume you have been using the 1022s but thought the Pegasus engine [with two fuel filters] was in all 05--even the early ones???? The 1022 doesnt fit my friends 05--was thinking filters change from my 03 to yr 05 with the Pegasus engine, and then maybe again with the particle burners in 08. All are 400s and all are different....
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Old 09-26-2013, 12:16 AM   #5
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Mine is 3422
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Old 09-26-2013, 02:10 PM   #6
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Monty,
All you need to do is swap the screw in sensor out so the electrical connector will fit.
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Old 09-26-2013, 04:52 PM   #7
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I see--so you can swap out the sensor plugs--assume the 1022 micron count is compatible with the second stage filter on the engine--or do you suppose this is part of what Cummins is referring to regarding compatibility issues?
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Old 09-26-2013, 05:06 PM   #8
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My "particle burner" rig has 1003 remote mounted by the rear engine hatch, and a 5477 on the engine (or maybe its a 5488?, I don't have the receipt in front of me). the 5477 is not a fuel water sep type, just a spin-on filter.
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Old 09-27-2013, 12:55 AM   #9
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I have the same engine as Mike has. The engine filter is FF 5488. The filter that WRV installed by the rear engine hatch was FS 1003. There is upgraded filter for FS 1003 that is FS 19596. I don't have the spec's right now, but it does a better job. Also it is lot easier to change than the engine filter.
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Old 09-27-2013, 03:50 PM   #10
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On my last LOF, I changed the FS1003 but not the 5488. I carry spares of the 1003 and the Speedco didn't have either on hand, so I used one of my 1003's and left the secondary 5488 rolling along. Probably fine to change it every 3rd or 4th LOF anyway. Since I supplied the fuel filter, oil change was about $200 w/a new Fleetgard lube filter. Beats hauling all that oil to the reclaimer. Or painting my fence w/it.
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Old 09-28-2013, 06:08 PM   #11
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Cummins NW was were I ended up with a FS1022. I subsequently ordered 3 more from Ryder. Last time Speedco put on a FS1065. But did replace the 5488 with another 5488.
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Old 09-28-2013, 06:26 PM   #12
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My ISC 350 uses the FS-1022 for a secondary fuel filter.

My primary is a Racor S3201T

If you still have the filter, I'll take it. Let me know what the shipping cost is to 91214.

Or if you plan to be traveling nearby would could hook up that way.

Dr4Film ----- Richard
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Old 10-06-2013, 12:53 AM   #13
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All - have friend who can use the 1022, so I sold it to him cheap. THe other filter is the 88 one, and I have three of those, and will keep them. That way next year, when doing my oil change, I can change that one as well, and will feel better. Going to assume, that when you drain off the fuel in the water/fuel unit, it releases any pressure in the other filter since that one is the secondary one. Cummins always wants to remove the floor in the bedroom to change it, but I told them that they should get a small skinny guy to just crawl up to it and change it, last time that is what they did. I can see it from the ground if I lay on my back and look up. Don't know if I can get in there and reach it enough to remove it and change it out.
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Old 10-06-2013, 08:27 AM   #14
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Helped change fuel filters on my friends 05--like my 03, there are some special challenges. The large filter in the service bay is below the level of the fuel tank so gravity creates a challenge--some folks have added an inline valve or used a clamp to restrict fuel flow during the change out. Dont like the idea of crushing the fuel hose but regardless, make sure you remove/replace the small gasket on the inlet pipe on the filter mount. You can get to/at the secondary filter from below the engine[a strap wrench atchmt with a long 1/2" drive rachet works fine] but remember,the 12v electric connections on the starter motor are hot and cannot be turned off with the main switches.
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