Using this S&B Fuel Sending Unit is simple. First, make sure your vehicle is one of the compatible models: 2017 - 2023 Ford F - 250/F - 350 Crew/Extended Cab Short Box or 2020 Ford F - 450 with a 6.7L Powerstroke engine. Remember, it's only for use with aftermarket external lift pumps. When installing, use the provided OEM fuel quick connectors. You can install it in your stock tank or an S&B tank without any modifications to your OEM setup. As for maintenance, since it's made of high - quality OEM materials and has been fully tested for durability, regular checks like you'd do for other fuel system parts are enough. If you notice any issues, like fuel - level problems or a C.E.L (Check Engine Light), contact S&B. And don't forget, if you bought it from an authorized dealer, it's covered by a Million Mile Limited Warranty under typical driving conditions.