Titan Gen 7 XXL Mid-Ship Fuel Tank – Fits 2020–2026 GM 2500HD/3500HD 4x4 Crew Cab Long Bed, Duramax Diesel | Part #7010320

Maximize your truck’s range with the Titan 7010320 Gen 7 XXL Mid-Ship Replacement Fuel Tank. Designed for 2020–2026 GM 2500HD and 3500HD Crew Cab Long Bed pickups equipped with the Duramax diesel engine and 4x4 drivetrain, this 60-gallon tank replaces the stock 36-gallon unit—offering a 24-gallon increase in usable capacity.

Made from Titan’s ultra-durable cross-linked polyethylene (XLHDPE), this tank is built to handle extreme conditions and comes with a lifetime warranty. It features Titan’s exclusive low fuel trap design to ensure all 60 gallons are usable and maintains minimal clearance loss—only 2" lower than the factory tank. Installation is bolt-in, with no fabrication or cutting required.

Note: GM trucks from 2019+ may experience temporary fuel gauge irregularities due to factory software limitations with high-capacity tanks. See technical bulletin below for more details.

Key Features:

• 60-Gallon Usable Capacity – Increases range with 24 gallons more than stock (36 gallons)
• For Duramax 4x4 Models – Fits 2020–2026 GM 2500HD & 3500HD Crew Cab Long Bed pickups
• Heavy-Duty Construction – Built with ¼" thick cross-linked polymer (XLHDPE)
• Gen 7 Design – Low fuel trap, torque ring sending unit mount, and optional vent/pump kits (sold separately)
• OE-Compatible – Uses stock sending unit; compatible with Fleece, AirDog, FASS systems
• Minimal Clearance Impact – Tank hangs only 2" lower than the factory tank
• Accessory Friendly – No interference with powered steps, airbags, or most rear suspension components
• Lifetime Warranty – Built to outlast the truck
• Installation – Direct-fit, bolt-in with included hardware

Vehicle Fitment:

• Make: Chevrolet / GMC
• Models: Silverado 2500HD / 3500HD, Sierra 2500HD / 3500HD
• Years: 2020–2026
• Cab Type: Crew Cab
• Bed Style: Long Bed (8 ft)
• Engine: 6.6L Duramax Diesel
• Drivetrain: 4x4 only
• Fuel Type: Diesel only
• Exclusions: Not compatible with 2WD or Cab & Chassis models
• Note: Not compatible with Hellwig sway bar #7782

What's Included:

• 60-Gallon Mid-Ship Replacement Fuel Tank (7010320)
• Black-coated galvanized steel mounting strap
• Front support system
• Installation hardware and instructions

Additional Details:

• Stock Tank Capacity: 36 Gallons
• Titan Tank Capacity: 60 Gallons
• Increased Capacity: 24 Gallons
• UPC: 848135001703
• Accessory kits sold separately

Technical Service Bulletin – Fuel Gauge Behavior:

• Affected Vehicles: 2019+ GM 6.6L Duramax
• Issue: Fuel gauge may drop to empty temporarily after install
• Cause: GM software may interpret slower float movement as error
• Solution: Gauge may recalibrate after several fuel cycles, though a permanent fix is not confirmed
• Recommendation: Use an aftermarket digital monitor for precise fuel level readings