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🚀 Just Launched - FASS Drop-In Series Diesel Fuel System for Cummins ISX and X15

Monitor your FASS Fuel Filter Life with FASS Connect!

  • Titanium Signature Series


    Premium fuel systems by FASS, designed for maximum performance, durability and engine protection.

  • No-Drop - Titanium Signature Series


    Signature system packaged with a Fuel Sump Kit so you don’t have to remove the fuel tank (“no-drop”). It replaces the OEM in-tank pump and supports higher flow.

  • Titanium Signature Series Plus



    The next evolution of the Titanium Signature Series, featuring upgraded fittings for improved durability and smoother fuel delivery - built on the same proven filtration platform.

  • No-Drop - Titanium Signature Series Plus


    Combines all the upgraded features of the Titanium Signature Series Plus with FASS’s No-Drop style installation. Using a sump-based mounting approach, allowing you to install the system without removing the fuel tank

  • Drop In Series


    The simplest upgrade: bolt-on filtration kit that utilizes your stock fuel pump (so no sump kit, no in-tank pump swap).

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