Description
Overview
The FASS Drop-In Series Diesel Fuel System is engineered to be one of the most effective filtration solutions for the 6.7L Powerstroke. Designed as a direct replacement for the factory engine fuel filter, it delivers cleaner fuel, superior water separation, and a consistent fuel supply to your engine — all while retaining your OEM in-tank fuel pump. This is an air separation and filtration system that works with your factory lift pump, giving you serious protection without a complicated setup.
Built around reliability, simplicity, and protection, the Drop-In Series is the smart upgrade for owners who want to safeguard their injectors and injection pump while keeping installation straightforward. It’s ideal for stock and lightly modified trucks, supplying ample fuel for both stock and modified Powerstroke applications.
Key Benefits
Fuel contamination is one of the biggest threats to modern diesel injectors and high-pressure pumps. By improving water separation and filtration, the FASS Drop-In Series helps optimize combustion and can dramatically extend the life of your fuel system — tripling injector and injection pump life. Cleaner fuel means better performance and greater peace of mind, whether you’re towing, working, or running a modified setup.
- Direct replacement for the factory engine fuel filter
- Cleaner fuel, better water separation, and consistent fuel supply
- Retains the OEM in-tank fuel pump — utilizes your factory lift pump
- Retains factory-style installation with no additional items needed
- Ideal for stock and lightly modified 6.7L Powerstroke trucks
- Backed by a limited lifetime warranty
How It Works
Please note: this is not a lift pump. The Drop-In Series is an air separation and filtration system that utilizes your factory lift pump to protect your engine from fuel contamination. Because it retains the OEM in-tank fuel pump and factory-style installation, no additional items are needed to install it — making it a clean, effective upgrade path for the 6.7L Powerstroke.
Fitment
This system is designed for crew cab short bed and crew cab long bed trucks and fits 2017-2025 Ford F-250, F-350, and F-450 6.7L Powerstroke models. Installation on cab and chassis may require modifications. It is not compatible with a Fuel Sump Kit. If you have an S&B or Titan Fuel Tank, you will need to purchase the adapter kit, PN Difsfrdtankspcr. Sold as each.
The FASS Drop-In Series brings together reliability, simplicity, and protection in a single filtration solution — helping your 6.7L Powerstroke run cleaner, stay protected, and deliver a dependable fuel supply mile after mile.
