Upgrade Your Fuel Capacity with the 65 Gallon Replacement Fuel Tank
Transform your 2001-2004 GM Duramax 6.6L LB7 Crew Cab Long Bed with the ultimate fuel tank solution. The SB 65-gallon replacement fuel tank offers an array of unique features designed for both functionality and durability.
Key Features:
- A Direct Replacement: Enjoy a hassle-free installation with our tank that directly replaces the small OEM tank. No cutting, drilling, or special modifications required—install in just 2-3 hours!
- GO BIG OR GO HOME: With a capacity of 65 gallons, this is the largest replacement fuel tank on the market. Say goodbye to frequent fill-ups!
- Innovative Baffled Design: Engineered with a built-in baffled design, our fuel tank minimizes sloshing. This feature not only helps to contain fuel around the pick-up but also reduces unwanted tank sloshing noise.
- Locked In For a True Seal: Utilizing the OEM locking ring, our tank provides a perfect seal that securely retains the fuel pump, ensuring your tank operates efficiently.
- Built to Last: Constructed from extremely strong crosslink polyethylene, this fuel tank is designed for durability and longevity. Plus, it’s backed by our lifetime warranty.
Specifications:
Product: 65 Gallon Replacement Tank for 2001-2004 GM Duramax 6.6L LB7 Crew Cab Long Bed
Installation Time: 2-3 hours
Modification Requirement: None
Upgrade to the SB 65 Gallon Replacement Fuel Tank today and experience the freedom of extended travel without the need for constant refueling!
A Direct Replacement: SB’s 65-gallon fuel tank directly replaces the small OEM tank without any cutting, drilling, or special modifications. This makes for a trouble-free, faster installation process. GO BIG OR GO HOME! SB’s offers the largest replacement fuel tank on the market, holding an impressive 65 Gallons of fuel,
Innovative Baffled Design: SB Tanks were engineered with a built-in baffled design. This helps to minimize fuel sloshing. This helps to contain fuel around the fuel pick up and prevents unwanted tank sloshing noise.
Locked In For a True Seal: The SB Fuel Tank was designed to use the OEM locking ring. This ensures a perfect seal and securely retains the fuel pump onto the tank.
Built to Last: SB Tanks are made out of an extremely strong crosslink polyethylene and backed by our lifetime warranty.
Details:
- 65 Gallon Replacement Tank for 2001-2004 GM Duramax 6.6L LB7 Crew Cab Long Bed
- Install can be done in 2-3 hours
- Does not require any cutting, drilling, or modification.




















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