10-1036

S&B 56 Gallon High-Capacity Fuel Tank for 2011-2026 GMC and Chevy 2500/3500 6.6L Duramax LML/L5P Crew Cab Short Bed

$1,449.00 USD
10-1036

S&B 56 Gallon High-Capacity Fuel Tank for 2011-2026 GMC and Chevy 2500/3500 6.6L Duramax LML/L5P Crew Cab Short Bed

$1,449.00 USD

Important Notes: The nozzle at high-flow fuel stations (truck stops) will be able to fill automatically.

Fuel Gauge Operation:
  • The distance to empty (DTE) on GM trucks can’t be reprogrammed, so it will show about half the mileage that is really left. You can multiple the displayed range by 2 to find your actual range.
  • The fuel gauge will operate properly. The fuel gauge will remain on full until about 4-5 gallons have been used and then the gauge will start to move normally. 
  • The bottom of the S&B tank has more surface area than the OE, so there will be a greater fuel reserve when the low fuel indicator comes on.

Do you have an Auxiliary Fuel Tank? Read why using these with our tanks will void the Lifetime Warranty.
Free Delivery ,
if ordered within hours and minutes
Shipping to
In Production. Expected Ship Date of November 13.

Frequently bought together

Cold Air Intake for 2020-2026 Silverado / Sierra Duramax L5P 6.6L Diesel $379.00 Learn More
S&B Intake Replacement Filter $69.00 Learn More
Compatible with gooseneck and 5th wheel Yes
Compatible with high flow fuel stations Yes
Compatible with oe skid plate No
Ground clearance compare to oe tank '-3"
Sending unit OEM
Straps included Yes
Street legal in all us states Yes
Tank type Midship
Transfer pump ready Yes
YearMakeModelEngine
2011-2016GMCSierra 25006.6L, Diesel, LML
2011-2016GMCSierra 35006.6L, Diesel, LML
2011-2016ChevroletSilverado 25006.6L, Diesel, LML
2011-2016ChevroletSilverado 35006.6L, Diesel, LML
2017-2026GMCSierra 25006.6L, Diesel, L5P
2017-2026GMCSierra 35006.6L, Diesel, L5P
2017-2026ChevroletSilverado 25006.6L, Diesel, L5P
2017-2026ChevroletSilverado 35006.6L, Diesel, L5P
View Instructions

WARNING: This product can expose you to chemicals including carbon black, silica - crystalline, methylene chloride, and lead which are known to the State of California to cause cancer, and lead, which is known to the State of California to cause birth defects or other reproductive harm.

MORE INFO at P65warnings.ca.gov
S&B 56 Gallon High-Capacity Fuel Tank for 2011-2026 GMC and Chevy 2500/3500 6.6L Duramax LML/L5P Crew Cab Short Bed
$1,449.00 USD
$1,449.00 USD

OE Footprint. 2x The Fuel.

Designed to fit like factory while delivering nearly double the fuel capacity, the S&B 56-Gallon Tank gives your Duramax the range to go farther between fill-ups. Built to utilize the OE footprint, this high-capacity tank maintains ground clearance and integrates cleanly with your truck—perfect for towing, road trips, and long days on the job.

Compatible with High Flow Fuel Pumps

Built for faster fill-ups, the S&B 56-Gallon Tank is designed to work with high flow fuel pumps commonly found at commercial fueling stations. The integrated oversized fill neck helps reduce pump shutoff issues and allows fuel to flow smoothly into the tank, getting you back on the road quicker.

Engineered to work with S&B Traction Bars

Designed with performance builds in mind, this 56-gallon high-capacity fuel tank is fully compatible with S&B Traction Bars—giving you the clearance and fitment needed without compromise. Whether you're towing heavy, launching hard, or daily driving, the tank and traction bars work together seamlessly to maximize strength, stability, and fuel capacity. No cutting. No guesswork. Just a clean, integrated fit built specifically for your GM Duramax.

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