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05-16-2021, 08:56 AM
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#1
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Registered User
Tiffin Owners Club
Join Date: Sep 2019
Location: Virginia - Florida- NC
Posts: 250
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Replacing Alliance Fuel Water Seperator, with Cummins Fleetguard Fuel Water Separator
Friends, I replaced the original type of Fuel Water separator that was standard on the Freightliner /Cummings chassis-Engine used on most Tiffin
Motor Homes with the ISC - 8.3L engines.
The Yellow ALLIANCE fuel/water separator has a short electrical sensor cable that is a part of the fuel/water seperator, and unplugs from the freightliner/Cummings engine cable that senses water in fuel and alarms on dashboard.
So, you would think that purchasing new Cummings brand of fuel filters, and fuel/water separators, would be compatible with this sensor cable -" NOT SO "
So, my question is, has any of you who read this experienced this issue.
Do you have a simple part number for a short converter pigtail that is comparable with the electrical male 2 pin connector on the FLEETGUARD FS-1065 Fuel/water separator.???
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05-16-2021, 11:39 AM
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#2
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Member
Tiffin Owners Club
Join Date: Apr 2010
Posts: 84
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Ok here is my two cents worth. These manufacturers change the fuel filter designation/requirements regularly even though the filters are basically the "same" thing. As a for instance, we had a 2007 Allegro Bus with the cummins 8.9l ISL engine in it. We now have a 2010 Allegro Bus with the 8.9 ISL9 engine in it. The engine is the same size but it uses different fuel filters. That said, I can use filters from different manufacturers so long as they cross reference to the original numbers that connector on the bottom should connect right up.
__________________
Mike & Linda Whitenton, Semi-Ret-2014, FT-2003
2010 43 QGP Allegro Bus/DEF (Sold), 2018 GMC Acadia Denali. Motorhomeless 12/25/2021.
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05-16-2021, 11:43 AM
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#3
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Senior Member
Join Date: Oct 2014
Posts: 7,881
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"That said, I can use filters from different manufacturers so long as they cross reference to the original numbers that connector on the bottom should connect right up."
AND (kind of an important AND) they are the correct micron rating.
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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05-16-2021, 01:18 PM
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#4
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Senior Member
Join Date: Jul 2009
Posts: 1,978
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I encountered the "pigtail" when I purchased a backup bottom piece and sensor for my previous coach. You should be able to get it from any FL parts dept. I will look at mine and see if I can find a part number.
The only numbers on the sensor end of the pigtail are 1439 and 4B20M. The connector on the harness end says Delphi PA66 which I think is the connector number.
__________________
ernieh
2019 Phaeton 37BH
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05-17-2021, 08:12 AM
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#5
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Member
Tiffin Owners Club
Join Date: Apr 2010
Posts: 84
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Quote:
Originally Posted by wolfe10
"That said, I can use filters from different manufacturers so long as they cross reference to the original numbers that connector on the bottom should connect right up."
AND (kind of an important AND) they are the correct micron rating.
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I have been told that there are manufacturer recommended replacement filters. What that means is that if your engine is a Cummins, the factory filters would be fleetguard. There are other filters that are Cummins approved that can be used. Using that cross reference, the connector should fit without having to use the adapter.
__________________
Mike & Linda Whitenton, Semi-Ret-2014, FT-2003
2010 43 QGP Allegro Bus/DEF (Sold), 2018 GMC Acadia Denali. Motorhomeless 12/25/2021.
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05-17-2021, 08:24 AM
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#6
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Senior Member
Join Date: Oct 2014
Posts: 7,881
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Quote:
Originally Posted by hipkts2010
I have been told that there are manufacturer recommended replacement filters. What that means is that if your engine is a Cummins, the factory filters would be fleetguard. There are other filters that are Cummins approved that can be used. Using that cross reference, the connector should fit without having to use the adapter.
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Agree.
But many filters by all the filter manufacturers that WILL fit a specific filter head (no adapter) may be very different micron filters.
So, both fit and micron rating are important.
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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05-17-2021, 01:11 PM
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#7
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Senior Member
Join Date: Jul 2009
Posts: 1,978
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Quote:
connector should fit without having to use the adapter
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My memory may be a bit fuzzy, but I think that the issue is that they changed the size of the connector on the water sensor. Thus the need for the pigtail on older coaches. This won't be an issue if you are not changing the sensor in the plastic cap or using a filter with an integral sensor.
__________________
ernieh
2019 Phaeton 37BH
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05-18-2021, 06:49 AM
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#8
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Registered User
Tiffin Owners Club
Join Date: Sep 2019
Location: Virginia - Florida- NC
Posts: 250
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You are correct, but.
The Cummings Fleetguard FS-1065 fuel water separator comes with an inherent built in sensor, and it has a different physical size/shape.
I think Cummings sells a connector for $108. I think I will just use Alliance Filters from now on. This sounds like Cummings shooting themselves in the foot, why not have a comparable connector so the filter will work.??
America 2021
Thank you Ernieh
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05-18-2021, 11:34 AM
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#9
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Senior Member
Join Date: Jul 2009
Posts: 1,978
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FWIW, Fleetguard also makes a direct replacement for the Alliance filter. I had several of them left over when I got my 2019 which uses a different filter. I traded them to
Bay Diesel for credit toward work they did.
__________________
ernieh
2019 Phaeton 37BH
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