Transfer Flow 0800116755 75 Gallon In-Bed Auxiliary Fuel Tank System | 2008-2025 Ford/Dodge/GM Trucks

Features:

• Fits Ford, GM, and Ram diesel trucks
• 75-gallon diesel auxiliary fuel capacity
• TRAX 4 system for automatic fuel transfers
• No manual switches or gravity-fed operation
• Robot-welded seams for added strength
• Baffled design reduces fuel sloshing
• Includes all installation hardware and wiring
• Made from 12- and 14-gauge aluminized steel
• Durable black powder-coated finish
• Fits short and long bed truck applications
• Made in the USA with American steel
• Backed by a 6-year unlimited mileage warranty

Premium Auxiliarty Fuel Tank System for HD Deisel Trucks

If you’ve ever wished you could go farther between fuel stops—whether you’re towing across the country, hitting remote job sites, or just tired of planning your trips around gas stations—the Transfer Flow 75-Gallon In-Bed Auxiliary Fuel Tank System is built with you in mind. Designed for 2008–2025 Ford, GM, and Ram trucks, this system gives your diesel rig serious range without sacrificing your entire bed to get it. At 75 gallons, this tank strikes a smart balance between capacity and space. It fits neatly in both short and long bed trucks and doesn’t dominate your bed the way larger tanks can. You still have room for gear, tools, or even a fifth-wheel hitch, all while carrying enough extra fuel to save time, money, and hassle on the road.

Trax 4 System Makes Fueling Effortless

What really sets this setup apart is the TRAX 4 computer-controlled operating system. Instead of relying on manual switches or gravity-fed transfer lines, the TRAX 4 handles everything automatically. It monitors your main tank’s level and transfers fuel seamlessly as you drive, based on pre-set thresholds. That means no guesswork, no monitoring gauges constantly, and no need to pull over to activate anything. It's just smooth, consistent fuel management in the background while you focus on the road ahead. Additioanlly, durability is a core part of the design. The tank is built from 12- and 14-gauge aluminized U.S. steel, robot-welded for added strength, and finished in a tough black powder coat that holds up to weather, salt, and everyday abuse. Inside, the baffled structure minimizes sloshing, especially helpful when towing or driving on uneven terrain. And because it’s DOT-compliant and made in the USA, you’re getting peace of mind that it’s engineered and built to the highest standards. Installation is straightforward with all components and wiring included in the kit. And once it’s in, the system runs itself—making it perfect for anyone who wants more range without adding complexity to their truck.

Fits:

• 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 Dodge / Ram Cummins
• 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 Ford Powerstroke
• 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 GM Duramax

Application Notes:

• 2010-12 Ram Mega Cab and Crew Cab short bed pickup with single rear wheels require a filler neck (part no. 0500115461).
• Does not fit on 2013-24 Ram short bed with 5th Wheel Prep Package.
• Does not fit on 2020-24 Ram short bed pickup.

Important Note: Accuracy of optional Rochester fuel gauge may be less depending upon tank shape and if tank is on a level surface. Accuracy may be less near full and empty.