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  • Dirt Bike Gas Tanks
  • Street Bike Gas Tanks
  • ATV & UTV Gas Tanks
  • Truck & SUV Tanks
  • Snowmobile Gas Tanks
  • Plastics
  • Parts & Accessories

    • Shop by Brand

  • Acerbis
  • Clarke
  • IMS
  • Seat Concepts
  • MTS
  • Safari
  • TrailTank
  • RotopaX
  • HMC
  • View all Brands

    • Diesel Specific Tanks

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    Diesel fuel systems operate under different pressures and chemical conditions than gasoline — and your replacement tank needs to be built accordingly. Our diesel-specific gas tanks are manufactured from materials compatible with diesel fuel formulations, bio-diesel blends, and the unique demands of diesel injection systems. Whether you're maintaining a diesel pickup, work truck, or off-road vehicle, we have the right tank for the job.

    We carry diesel-compatible replacement tanks for a wide range of domestic trucks including Ford Super Duty diesels, Chevrolet/GMC Duramax-powered trucks, and Ram diesel applications. Each tank is designed for direct OEM fitment, ensuring correct fuel level sender opening, strap positioning, and filler neck configuration. Many options include enhanced rust protection and corrosion-resistant coatings built for the longer service intervals common in diesel applications.

    Use the year, make, and model filter to find the correct diesel-compatible tank for your vehicle.

    Frequently Asked Questions

    What are the benefits of installing a replacement diesel fuel tank in a pickup truck?

    High-capacity diesel tanks from brands like Titan and Transfer Flow allow you to nearly double your driving range by replacing the small factory tank with a larger heavy-duty unit. These tanks are specifically engineered to fit into the original chassis space without sacrificing ground clearance or bed space, making them essential for long-distance towing and off-grid travel.

    Will a Transfer Flow or Titan diesel tank fit my Ford Power Stroke or Ram Cummins?

    Most aftermarket diesel tanks are vehicle-specific and designed for fitment on popular platforms like the Ford Super Duty, Chevy Silverado/GMC Sierra, and Ram 2500/3500 models. You can select mid-ship replacement tanks or in-bed auxiliary systems based on your specific cab and bed configuration to ensure 100% compatibility with your OEM fuel lines and sending unit.

    What is the largest fuel capacity available for a diesel Ford or Ram truck?

    Capacity options vary by wheelbase, but common upgrades include the Titan 40-gallon sub-tanks and the massive Transfer Flow 50-gallon replacement systems. For those needing even more fuel, combining a large mid-ship replacement tank with an in-bed auxiliary tank can increase total diesel capacity to over 100 gallons on many heavy-duty trucks.

    Are aftermarket diesel fuel tanks made of plastic or steel?

    Modern diesel tanks are typically constructed from either high-density polyethylene (HDPE) or aluminized steel to prevent corrosion and withstand harsh road debris. Titan Fuel Tanks utilizes a military-grade cross-linked polymer that is nearly indestructible, while Transfer Flow often uses 12-gauge aluminized steel for maximum durability and baffles to reduce fuel slosh.

    Do I need to modify my fuel gauge after installing a high-capacity diesel tank?

    While most replacement tanks work directly with your factory sending unit, you may need a digital recalibration tool or a module like the Titan Generation 6 controller to ensure your dashboard gauge accurately reflects the new, larger capacity. Always verify if the specific tank kit includes the necessary hardware to sync with your truck’s distance-to-empty computer system before starting the installation.