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  1. FASS - best filters? | Cummins Diesel Forum

    Jul 7, 2021 · I haven’t kept up with the parts since before FASS changed their filters. So now what is considered the best filter & water separator combo for a FASS...

  2. FASS still the King? | Cummins Diesel Forum

    Mar 19, 2023 · Just finished the final step on my FASS fuel system that started 13 years ago when I first hung it under my bed. Now I hear my sump will cause stalling at 1/4 tank? I hear FASS doesn’t filter …

  3. FASS Fuel System | Cummins Diesel Forum

    Jul 29, 2025 · FASS No-Drop Series PLUS 165GPH Fuel System for 2005-2018 & 2021-2024 Dodge RAM Cummins 5.9L and 6.7L (600-900hp) - FASS Diesel Fuel Systems | In God We Trust

  4. FASS vs AirDog.....You Decide! - The Truck Stop

    Jun 28, 2009 · A few things to note about the components…. 1 – The FASS comes with 3/8” fuel line and the AirDog comes with 1/2". Both had enough to leave approx 1 – 2’ of fuel line remaining after …

  5. FASS lift pump trigger wiring questions, P0628 code but...

    Nov 14, 2024 · Called Fass they sent a new relay (plus I bought 2 from Geno, can't have enough) None of the 3 did anything. I had the trigger wire harness connected to Fass relay, They said cut red wire …

  6. FASS DDRP/DRP Lift Pump Install - The Truck Stop

    Sep 7, 2016 · The FASS troubleshooting document (s) specifically state to mount the pump horizontally so the weep hole is facing down. This allows any moisture to exit the pump head, and that is how …

  7. To FASS or not to FASS... | Cummins Diesel Forum

    Dec 19, 2024 · A FASS system ie pump and filters is around $600 to $700 and feed it from the bottom not the top. Fuel pressure should be 16 psi @ the injector pump! 03 QCLB- Built with scraps, and …

  8. Fass vs Air Dog | Cummins Diesel Forum

    Aug 24, 2018 · Fass and Airdog both have lifetime warranty, they should for price they charge. Millions of HPCR engines running without air removal gimmick. Most important is having 3 micron filtering, …

  9. is a FASS worth it? | Cummins Diesel Forum

    Oct 25, 2008 · The FASS pumps also come with a lifetime warranty, i never understand why that is overlooked when this comes up. But to answer your question yes they are worth it and a …

  10. FASS Blowing Fuses?? Help Please | Cummins Diesel Forum

    Feb 7, 2017 · FASS even gave me a discount on the new motor since I was still under warranty. I know I've seen quite a few folks complain about poor customer service from FASS, However I have had …