56 Gallon High-Capacity Fuel Tank

Features:

• 56 gallon high-capacity fuel tank
• Direct bolt-on replacement design
• Fits 2013-2026 Ram Cummins long beds
• Extends driving range over 1,000 miles
• Adds 25 gallons over stock
• Durable 1/4-inch XLPE construction
• Greater impact resistance than factory tank
• Compatible with high-flow fuel nozzles
• Optimized venting prevents premature shutoff
• Reuses factory sending unit and float
• Street legal in all 50 states
• Made in the USA

Leave Fuel Stops Behind For Good

Long drives feel completely different when you are not constantly watching the fuel gauge. The S&B 56 Gallon High Capacity Fuel Tank transforms your 2013-2026 Ram 2500 or 3500 6.7L Cummins Crew Cab Long Bed by replacing the factory 31 gallon tank with an impressive 56 gallon capacity. That means carrying an additional 25 gallons of diesel, giving you the freedom to travel well over 1,000 miles between fill ups under the right conditions. Whether you spend your weekends towing a trailer across state lines or simply want fewer interruptions during your workday, this upgrade helps you stay focused on the road ahead instead of searching for the next fuel station. Additionally, the direct bolt on design makes installation straightforward by reusing the factory sending unit and float assembly. The tank is street legal in all 50 states, making it a practical upgrade that delivers convenience every time you climb behind the wheel. Once you experience the extra range, it quickly becomes one of those upgrades you will wonder how you ever lived without.

Engineered To Maximize Every Inch Beneath Your Truck

S&B designed this high capacity fuel tank to take advantage of the unused space beneath your truck without sacrificing fitment or reliability. Constructed from rugged 1/4 inch cross linked high density polyethylene, the tank offers greater impact resistance than the factory linear polyethylene tank, making it well suited for demanding job sites and rough back roads. Furthermore, the advanced tank shape is the result of detailed scanning and precision manufacturing, allowing it to increase capacity while maintaining proper vehicle integration. Optimized venting allows the tank to work with high flow diesel pumps commonly found at truck stops, helping prevent premature nozzle shutoff and fuel overflow during fast fill ups. The factory fuel gauge continues to function after installation, although the distance to empty display will no longer provide an accurate reading because the vehicle cannot be recalibrated for the larger tank size. Since the taller tank reuses the original sending unit and float, the gauge will typically remain on full for the first 8 to 10 gallons of fuel consumed. Every detail has been engineered to deliver dependable performance while dramatically extending the driving range of your Ram.

Fitment: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 RAM 2500/3500 6.7L Cummins Crew Cab/Long Bed

Notes:

• Fits 2013-2026 Ram 2500/3500 6.7L Cummins Crew Cab Long Bed trucks.
• Replaces the factory 31 gallon fuel tank with a 56 gallon tank.
• The factory fuel gauge will continue to work after installation.
• The distance to empty reading will not be accurate after installation.
• The vehicle cannot be recalibrated for the larger fuel tank size.
• The OEM sending unit and float are reused during installation.
• The fuel gauge may stay full for the first 8-10 gallons used.
• Compatible with high-flow diesel pumps commonly found at truck stops.
• Designed to help prevent premature shutoff and overflow while fueling.
• Street legal for use in all 50 U.S. states.
• Contains a California Prop 65 warning for chemical exposure.

Install Instructions