The FASS STK-5500B Fuel Tank Sump with Suction Tube Upgrade provides a sophisticated engineered solution to one of the most common frustrations in the diesel performance industry: the "1/4 tank issue." This problem typically occurs when high-volume aftermarket fuel pumps are unable to reach the remaining fuel at the bottom of the tank, effectively stripping you of a significant portion of your vehicle's range. By utilizing an advanced suction tube design, this universal kit ensures your fuel system has constant access to the lowest point in the tank. This educational approach to fuel delivery allows you to utilize your entire fuel capacity without the risk of cavitation or starvation when your gauge starts to run low.

• Eliminates 1/4 Tank Issues: Solves the fuel delivery failures commonly associated with high-performance aftermarket pumps and low fuel levels.

• Bottom-Draw Efficiency: Engineered to pull fuel from the absolute lowest point of the tank to maximize usable volume and flow consistency.

• Internal Suction Tube Design: Features a specialized tube that connects directly to your existing bulkhead fitting for a streamlined installation.

• Protected Top-Feed Configuration: Routes fuel out of the top of the tank, ensuring that no vulnerable hoses or lines are hanging beneath the vehicle.

• Universal Application: Designed for versatile fitment across a wide range of truck platforms equipped with existing bulkhead fittings.

Beyond the immediate performance gains, the STK-5500B prioritizes the physical security of your fuel system. Traditional sump designs often require fuel lines to exit from the bottom of the tank, leaving them exposed to road debris, off-road obstacles, or accidental snagging. FASS eliminates this vulnerability by drawing fuel from the bottom internally while feeding it out through the top. This "best of both worlds" design grants you the high-flow reliability of a sump with the safety and protection of an OEM-style top-draw system, making it an essential upgrade for drivers who demand both durability and maximum fuel range.

Application Notes: 

• This kit is for use on trucks that already have a bulkhead fitting. 
• If you do not have an existing bulkhead fitting, consider purchasing STK-5500 Kit