TransferFlow 50 Gallon In-Bed Auxiliary Fuel Tank System TRAX 4

50 Gallon
High Yield Aluminized Steel
2008-2021 Dodge/Ram & Chevy/GM, 2008-2020 Ford
155.00 LBS
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Extend your driving distance when you install a 50-gallon in-bed auxiliary fuel tank system. This tank is designed with a low profile and small footprint to fit under most tonneau covers and leave plenty of bed space for you. The auxiliary system is computer-controlled by our patented TRAX 4™ operating system with patented Auto Trans® technology. Computer-controlled automatic fuel transfers mean worry-free operation, and much safer and more reliable operations than gravity fed systems. Based on the capacity of your vehicle's main fuel tank and the capacity of the Transfer Flow fuel tank, the TRAX 4® system will transfer fuel at predetermined fuel levels while the vehicle is in operation. To know the status of your on-board fuel systems simply download the TRAX 4® app to your smart phone and enter your vehicle and fuel system information. In no time, you'll be able to monitor your pickup's fuel capacity! During fuel transfer, the message "PUMP ON" will be displayed. You also have the option of displaying either the gallons or the percentage of fuel in each tank. If you prefer not to use our TRAX 4® app with your auxiliary tank but still want to know how much fuel you have, Transfer Flow offers an in-cab fuel level monitor LCD. The LCD shows the fuel level of the auxiliary tank with an easy-to-read bar graph that decreases when fuel is transferred to the pickup's main fuel tank. This item is sold separately. Call a JME Sales specialist at 800-333-1331 to get a quotation. NOTE: Product dimensions include 1-1/2 in. width for the mounting brackets and 3 in. height for the filler neck.
This part currently will not work with 2008 Chevrolets


  • Recommended for drivers who require additional fuel capacity but require a small footprint to maximize available bed space for 5th wheel hitches, RAM box beds, and cargo
  • Won't interfere with standard 5th wheel hitch
  • Fits under most tonneau bed covers
  • Robot-welded seams provide extraordinary strength, unlike rotationally molded plastic tanks or cheaper steel brands
  • TRAX 4® computer-controlled automatic fuel transfers for worry-free operation with exclusive Auto Trans® technology
  • Fuel tank systems include all components needed for installation
  • Built from ReliaSteel®, high-yield U.S. aluminized steel powder coated black for superior durability and strength
  • Dimensions: 60-3/4 in. L x 18-1/2 in. W x 18-14/ in. H
  • Baffled to prevent fuel sloshing
  • 6 year, unlimited mile warranty
  • Made in the USA


Product Manual (PDF Download)

Users Guide (PDF Download)