S&B High-Capacity Fuel Tank

2005–2026 Dodge Ram 2500 / 3500 5.9L & 6.7L Diesel

Part #: 10-1035

Overview

The S&B 50 Gallon High-Capacity Fuel Tank is a direct replacement upgrade designed specifically for Dodge Ram 2500 and 3500 models equipped with 5.9L and 6.7L Cummins diesel engines from 2005 through 2026. This high-capacity tank replaces the factory 31-gallon fuel tank, significantly extending your truck’s driving range and reducing the frequency of fuel stops. Ideal for long hauls, heavy towing, or off-road adventures, this tank provides the freedom to travel farther with confidence.

Engineered as a bolt-on solution, the S&B tank maintains compatibility with the OEM sending unit and float, ensuring the fuel gauge continues to function. However, due to the increased capacity and tank height, the distance-to-empty reading will not be accurate, and the gauge will remain on full for the first 8 to 10 gallons of fuel consumption.

Key Features

Designed for durability and ease of use, the S&B 50 Gallon Fuel Tank offers the following key features:

• High-capacity 50-gallon fuel storage, replacing the factory 31-gallon tank
• Direct bolt-on installation with no modifications required
• Compatible with OEM sending unit and float for continued fuel gauge operation
• Constructed to fit 2005–2026 Dodge Ram 2500 and 3500 5.9L & 6.7L diesel models
• Designed for Crew Cab Short Bed configurations
• Durable construction to withstand harsh driving conditions and heavy use
• Maintains factory fuel system integrity without requiring recalibration
• Ideal for extended range driving, reducing fuel stops on long trips
• Note: Using this tank with an auxiliary fuel tank will void the S&B Lifetime Warranty

Construction & Design

The S&B 50 Gallon Fuel Tank is engineered from high-quality materials to ensure long-lasting durability and resistance to corrosion. Its robust design is tailored to fit precisely within the factory mounting points of Dodge Ram 2500 and 3500 trucks, preserving the vehicle’s structural integrity and appearance. The tank’s taller profile accommodates the increased fuel volume while maintaining compatibility with the OEM fuel sending unit and float assembly. This thoughtful engineering ensures reliable fuel level readings and seamless integration with the truck’s existing fuel system.

Installation & Fitment

Installation of the S&B 50 Gallon Fuel Tank is straightforward and designed as a direct bolt-on replacement for the factory tank. No welding, cutting, or major modifications are necessary, making it accessible for professional installers and experienced DIY enthusiasts alike. The tank fits all 2005–2026 Dodge Ram 2500 and 3500 models equipped with 5.9L and 6.7L Cummins diesel engines, specifically for Crew Cab Short Bed configurations. It is important to note that while the fuel gauge will continue to operate, the distance-to-empty calculation will not be accurate due to the increased tank size.

What's Included

• S&B 50 Gallon High-Capacity Fuel Tank
• Mounting hardware compatible with factory installation points
• Instructions for installation

Ideal For

This high-capacity fuel tank is ideal for Dodge Ram owners who require extended driving range without frequent refueling. It is especially beneficial for:

• Long-distance drivers and overlanders
• Heavy-duty towing and hauling applications
• Commercial and fleet vehicles operating in remote areas
• Diesel enthusiasts seeking reliable, high-capacity fuel storage

S&B Filters builds high-flow air filtration and intake systems for trucks and diesel performance applications, focusing on airflow, filtration efficiency, and durability. Their cold air intake kits and replacement filters are popular upgrades for enthusiasts who want improved breathing, towing confidence, and long-term serviceability on hard-working rigs.