Plus, with its exclusive low fuel trap design all 40 gallons are usable capacity. We could advertise a larger capacity, but we chose to only market usable capacity to set honest and reasonable expectations for our customers. The Titan XXL tank also features minimal hang down below the bottom of the stock tank (approximately only 1 3/4″ lower).Installation is a breeze – no fabrication or cutting required. This tank is a direct fit, bolt-in application, making it the perfect upgrade for your Ford F150 Power Stroke pickup. Application For model year: 2018-2021. For Ford F150 Crew Cab, 5 1/2 ft Bed Power Stroke Diesel. Note: For use with diesel fuel ONLY. Additional Details. The TITAN tank is 14 gallons larger at 40 gallons. The stock tank is only 26 gallons. Will not interfere with powered steps, air bag systems and other accessories. Our mid-ship, direct replacement fuel tanks are designed to use your trucks stock/OE sending unit. However, our tanks are compatible with Fleece, AirDog, FASS, etc.

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