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Thread: Fass pump

  1. Top Of Page | #1
    DcLOLinger's Avatar

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    Fass pump

    Does the fass fuel pump replace the front and rear stock fuel filters or do you still need to change them as well?

    2015 3500 Cummins w/ aisin, Kore leveling kit, bilstien 5100 shocks, 35x12.5r20 duratracs, fuel kleavers, buschwacker max coverage flares, 40" curved rough country light bar in bumper, putco silver lux led headlights, air lift rear air bags wirelessONE with onboard air, carli track bar, carli lower steering stabalizer, synergy steering box brace, afe cold air intake, raceme ultra with warp tuning by double r diesel, 5" TBE flo pro, full pusher intake, fass 150.

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  3. Top Of Page | #2
    DDP's Avatar

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    Re: Fass pump

    it should replace both if im not mistaken. the front for sure becausee it will technically be obsolete. the back one is just a water separator more or less.

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  5. Top Of Page | #3
    Pimpw3ld3r25_8's Avatar

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    Re: Fass pump

    I just had fass installed I was wondering same thing LOL but I only have front filter stock


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    HKBIGDADDYDIESELDAN's Avatar

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    Re: Fass pump

    Quote Originally Posted by Dude's Diesel Performance View Post
    it should replace both if im not mistaken. the front for sure becausee it will technically be obsolete. the back one is just a water separator more or less.
    As far as I know when you install fass system you don't use the factory filters

    2012 Cummins Ram 6.7L MM3 tuner full 5" Flo Pro TBE Exhaust LWBCC 4x4 Mag Hytec Double Deep Transmission Pan , Mag Hytec Rear Diff Cover
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  9. Top Of Page | #5
    DcLOLinger's Avatar

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    Re: Fass pump

    Does anyone that has a fass or airdog system that has the two stock filters change either of them anymore? I'm pretty sure the engine mounted one is bypassed now but what about rear? Thanks for everyone's replies.

    2015 3500 Cummins w/ aisin, Kore leveling kit, bilstien 5100 shocks, 35x12.5r20 duratracs, fuel kleavers, buschwacker max coverage flares, 40" curved rough country light bar in bumper, putco silver lux led headlights, air lift rear air bags wirelessONE with onboard air, carli track bar, carli lower steering stabalizer, synergy steering box brace, afe cold air intake, raceme ultra with warp tuning by double r diesel, 5" TBE flo pro, full pusher intake, fass 150.

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  11. Top Of Page | #6
    Pimpw3ld3r25_8's Avatar

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    Re: Fass pump

    Quote Originally Posted by DcLOLinger View Post
    Does anyone that has a fass or airdog system that has the two stock filters change either of them anymore? I'm pretty sure the engine mounted one is bypassed now but what about rear? Thanks for everyone's replies.
    I know my front one is bypassed but my 12 only had that one


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  13. Top Of Page | #7
    Basic Member 2rr2nv2014's Avatar

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    Re: Fass pump

    anyone run both airdog and Fass and found out which one might be better... or are they the same basically?? want both filters centralized and easier to work with.


  14. Top Of Page | #8
    WE WILL STAND! IGOTACUMMINS's Avatar

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    Re: Fass pump

    Quote Originally Posted by 2rr2nv2014 View Post
    anyone run both airdog and Fass and found out which one might be better... or are they the same basically?? want both filters centralized and easier to work with.
    Fass is way better than Airdog. 😆

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  16. Top Of Page | #9
    DDP's Avatar

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    Re: Fass pump

    100% Fass. I ran an air dog on a few of my trucks and later down the road had issues out of all of them....

    Installed a Fass and has been running like new ever since!!

    Dude's Diesel Performance
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  18. Top Of Page | #10
    Old... But Still Here! AnOldBiker's Avatar

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    Re: Fass pump

    I know ya'll have a newer truck than I, but consider this. On my older truck, the stock filter has a level alarm if water is collected in the filter bowl. I have the dual filter unit on my truck, but retained the original filter unit to collect water (if enough water collected to fill the filters) and alarm me before it hits the injectors. If you don't have a water level indicator on your FASS / Air Dog, will you be informed of high H2O level before damage ?



    Jim


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