S&B High-Capacity Fuel Tank

2005–2024 Dodge Ram 2500 / 3500 5.9L & 6.7L Diesel

Part #: 10-1021-1

Overview

The S&B 52 Gallon High-Capacity Fuel Tank is engineered specifically for Dodge Ram 2500 and 3500 models equipped with 5.9L and 6.7L diesel engines from 2005 through 2024. Designed to significantly increase fuel capacity, this tank is ideal for drivers who require extended range and fewer fuel stops during long hauls or heavy-duty work. By upgrading to this high-capacity tank, owners can enhance their vehicle’s utility without compromising on quality or fitment.

This fuel tank is perfect for fleet operators, contractors, and diesel enthusiasts who demand reliability and efficiency on the road. It maintains compatibility with the OEM sending unit and float, ensuring the fuel gauge continues to function, although the distance-to-empty reading will not be accurate due to the increased tank size.

Key Features

Built to deliver extended fuel capacity and durability, the S&B 52 Gallon Fuel Tank offers the following key features:

• High-capacity 52-gallon fuel storage for extended driving range
• Direct fitment for 2005–2024 Dodge Ram 2500 and 3500 5.9L & 6.7L diesel models
• Reuses OEM sending unit and float for seamless fuel gauge operation
• Constructed taller than stock tanks; gauge will read full for the first 8-10 gallons
• Compatible with standard fuel nozzles; note that high-flow nozzles at truck stops may not auto-fill
• Designed to maintain factory mounting points and fuel line connections for easy installation
• Lifetime warranty void if used with auxiliary fuel tanks—see warranty details

Construction & Design

The S&B high-capacity fuel tank is crafted from premium-grade steel, providing exceptional strength and corrosion resistance to withstand harsh road conditions and long-term use. Its taller design increases fuel volume without compromising structural integrity or vehicle clearance. Precision engineering ensures that the tank fits perfectly within the factory mounting locations, preserving the vehicle’s original configuration and safety standards.

The tank’s finish is treated to resist rust and environmental damage, extending its service life and maintaining a clean appearance. By reusing the OEM sending unit and float, S&B ensures reliable fuel level readings and compatibility with the vehicle’s existing fuel system electronics.

Installation & Fitment

Installation of the S&B 52 Gallon Fuel Tank is straightforward for professional mechanics or experienced DIYers familiar with fuel system components. The tank is designed as a direct replacement for the stock fuel tank on Dodge Ram 2500 and 3500 diesel models from 2005 to 2024, requiring no modifications to the frame or fuel lines. OEM sending units and floats are reused, simplifying the swap and maintaining gauge functionality.

Note that due to the tank’s increased height, the fuel gauge will remain on full for the initial 8 to 10 gallons of fuel. Additionally, high-flow fuel station nozzles may not automatically shut off during refueling, so manual attention is advised to prevent overfilling.

What's Included

• 52 Gallon High-Capacity Fuel Tank
• Installation hardware
• Detailed installation instructions

Ideal For

This high-capacity fuel tank is ideal for Dodge Ram 2500 and 3500 diesel owners who require extended driving range for commercial hauling, long-distance travel, or off-road applications. It suits fleet operators, contractors, and diesel enthusiasts seeking to reduce fuel stops and increase operational efficiency without sacrificing reliability or vehicle compatibility.

Important Notes

• The fuel gauge will continue to operate, but the distance-to-empty reading will not be accurate due to the larger tank size.
• OEM sending unit and float are reused; the tank’s taller design causes the gauge to stay on full for the first 8-10 gallons.
• High-flow fuel station nozzles may not automatically shut off when filling this tank; manual monitoring is recommended.
• Use of auxiliary fuel tanks with this product will void the lifetime warranty.

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