Titan Fuel Tanks 2025 to 2026 Dodge RAM Mega Cab Short Bed Cummins Diesel XXL GEN 7 Fuel Tank

Titan Fuel Tanks is once again revolutionizing the industry with the release of the new Gen 7 XXL Replacement Fuel Tanks. Our tanks are the most advanced and capable XXL fuel tanks ever produced. Constructed from our renowned High-Density Cross-Linked Polyethylene (XLHDPE), they offer unmatched durability and a lifetime warranty, surpassing any other fuel tank on the market.

The Gen 7 tanks boast three innovative new features to maximize versatility:

A fast fill vent kit for hassle free fueling at high-flow truck stop pumps, a universal pickup tube compatible with high-pressure fuel systems, and a transfer pump kit, allowing you to conveniently fuel other vehicles directly from your XXL replacement tank. These kits are optional and sold separately. They can be found at the bottom of this page.

The Titan 50 Gallon Extra Capacity Mid-Ship Replacement Fuel Tank, designed specifically for 2025 Ram 2500 and 3500 pickups with Mega Cabs, Short Beds, and Cummins engines. With this innovative upgrade, you're not just investing in a larger fuel tank - you're investing in unparalleled freedom and convenience on the road.

The tank comes complete with a black-coated, galvanized steel mounting strap and front support system. Plus, with its exclusive low fuel trap design all 50 gallons are usable capacity. We could advertise a larger capacity, but we chose to only market usable capacity to set honest and reasonable expectations for our customers. The Titan XXL tank also features minimal hang down below the bottom of the stock tank (approximately only 2.5" lower).

Installation is a breeze - no fabrication or cutting required. This tank is a direct fit, bolt-in application, making it the perfect upgrade for your Ram 2500 or 3500 pickup.

For model years 2025+

For all Mega Cab 2500 & 3500 Models with Cummins Engines. Fits standard and dual rear wheel models.

Note: For use with diesel fuel ONLY

Made in the USA

CA PROP 65 WARNING: CALIFORNIA WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Fuel Gauge & Distance-to-Empty with a TITAN Tank

Fuel Gauge: Your in-dash fuel gauge will remain accurate. Because your TITAN Tank holds more fuel, the gauge will simply stay on “Full” longer before beginning to drop

Distance-to-Empty (DTE) / Range: Programming the DTE is not required, as your fuel gauge will continue to read accurately. However, customers who want their Distance-to-Empty (range) display to reflect the new tank capacity can update it on most trucks. Until programming is completed, the DTE reading may be inaccurate.

When it comes to programming, Titan keeps it simple, there is no need to have us ship you an expensive programmer that you send back. We have our own Titan Tech programmer available for some make and models, while other truck models can be done with very affordable and easy to use software.

Programming Options

2025-2026 Ford Trucks: Use ForScan, a Ford-specific software that allows the vehicle computer to be adjusted for the increased TITAN tank capacity.

2017-2024 Ford Trucks: Use the Titan Tech programmer (available directly from TITAN Fuel Tanks) to update the DTE in seconds. ForScan software may also be used.

2011–2016 Ford Trucks: Use the Titan Tech programmer (available directly from TITAN Fuel Tanks) to update the DTE in seconds. ForScan or Ford dealership IDS software may also be used.

2019-2024 RAM Trucks: Use AlfaOBD, a RAM-specific software that allows the vehicle computer to be updated for the increased TITAN tank capacity.

Third-party programming tools and software are independent of, and not guaranteed by, TITAN Fuel Tanks™.

Additional Details

The TITAN tank is 19 gallons larger at 50 gallons. The stock tank is only 31 gallons.

Will not interfere with powered steps, air bag systems and most other accessories.

Our mid-ship, direct replacement fuel tanks are designed to use your trucks’ stock/OE sending unit. However, our tanks are compatible with Fleece, AirDog, FASS, etc.

Not for use on the trucks that were ordered from the factory with the optional larger 48/50 gallon RAM tank.