FASS Fuel Systems Drop-In Series Diesel Fuel System (DIFSFRD1001)
Fits 2017-2024 6.7L Power Stroke V8 (2017 calibration) · 6.7L Power Stroke V8 (2018-2019 calibration) · 6.7L Power Stroke V8 (2020-2022 calibration) · 6.7L Power Stroke V8 (enhanced)
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A replacement fuel module that drops into the factory fuel tank in place of the stock pickup assembly. It adds a built-in lift pump and filtration stage ahead of the engine's high-pressure pump, using the existing fuel lines and tank -- no cutting or drilling.
why this one — This bolts into the stock tank location on crew cab short and long bed trucks, so it is a same-day driveway job instead of a shop job. It will not work on cab-and-chassis F-450s (the flatbed or utility-body trucks a lot of fleets run) -- those need the S&B after-axle tank instead. FASS does not publish a horsepower number for it because a lift pump alone does not add power; it is there to keep fuel pressure and filtration solid if the truck is worked hard or gets a tune down the road.
Sold as a fuel-delivery/filtration upgrade, not a horsepower claim. FASS does not publish an hp or torque figure for this system -- it is positioned as lift-pump and filtration support for the stock or built engine, not a power-adder on its own.
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No published gain figure for this part, and nothing here is a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See our affiliate disclosure.