S&B 68 Gallon High-Capacity Fuel Tank (10-1015-1) for 2011-2019 Duramax 2500 3500 Crew Cab Long Bed 6.6L
$1,449.00
We’re upgrading this tank (10-1015-2) to support high-flow fuel stations! Tooling is in progress, and the release is set for Early 2026.
- The distance to empty (DTE) on GM trucks can’t be reprogrammed, so it will show about half the mileage that is really left. This occurs with all aftermarket high-capacity fuel tanks.
- The fuel gauge will operate properly. When you fill up your tank, the fuel gauge will remain on full until about 4-5 gallons have been used and then the gauge will start to move normally. GM trucks monitor for an inoperative fuel gauge, so in some situations, until it starts to move, the truck’s computer will drop the gauge to empty to get the driver’s attention even though your tank is full. The gauge will return to its normal position after restarting the engine. Once the fuel level drops 4-5 gallons from full, the fuel gauge will return to its normal operation.
- 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.
- The nozzle at high-flow fuel stations(truck stops) will not be able to fill automatically.
Do you have an Auxiliary Fuel Tank? Read why using these with our tanks will void the Lifetime Warranty.
This tank now fits vehicles with a 2 piece driveline.
| Weight | 80 lbs |
|---|---|
| Dimensions | 90 × 18 × 18 in |
Fitment
| 2017-2019 | Chevrolet | Silverado 2500 | 6.6L, Diesel, L5P |
| 2017-2019 | Chevrolet | Silverado 3500 | 6.6L, Diesel, L5P |
| 2017-2019 | GMC | Sierra 2500 | 6.6L, Diesel, L5P |
| 2017-2019 | GMC | Sierra 3500 | 6.6L, Diesel, L5P |
| 2011-2016 | Chevrolet | Silverado 2500 | 6.6L, Diesel, LML |
| 2011-2016 | Chevrolet | Silverado 3500 | 6.6L, Diesel, LML |
| 2011-2016 | GMC | Sierra 2500 | 6.6L, Diesel, LML |
| 2011-2016 | GMC | Sierra 3500 | 6.6L, Diesel, LML |
Features
| Compatible with gooseneck and 5th wheel | Yes |
| Compatible with oe skid plate | No |
| Dimensions | 87.04″ X 15.4″ X 20.92″ |
| Drain | No |
| Ground clearance compare to oe tank | 3.75″ Lower |
| Oem capacity | 36 |
| Sending unit | OEM |
| Straps included | Yes |
| Sump | No |
| S&B Capacity (Approximate) | 68 |
| Tank type | Midship |
| Transfer pump ready | Yes |
Installation
Before You Start
- Please read the entire product guide before proceeding
- Ensure all parts are present.
- If you are missing any parts, please call or text us at (909)-675-1313
- Do not work on your vehicle while the underbody components are hot.
- Make sure the vehicle is in park or the parking brake is set if you plan on working on the ground. If working on a lift, make sure the vehicle is lifted safely and securely.
Disconnect and isolate both of the negative battery cables.
Before installing S&B Tank, conduct pressure test to ensure o’ring is properly seated.
Auxiliary Fuel Tanks will void the Lifetime Warranty.
DIESEL FUEL ONLY.
Important Note: This tank does not currently fit vehicles with a 2 piece driveline. A revised tank is being developed that will fit both 1 and 2 piece drivelines and will be available by the end of April.
Required Tools
Flathead Screwdriver, 5/16″ Nut Driver or 5/16″ socket
Mallet/Hammer
15mm Socket
19mm Socket
17mm Socket
Ratchet
12″ Driver Extension
STEP 1
Loosen the hose clamp and remove the filler hose.
STEP 2
Remove the hose clamp and hose from the main vent line attached to the fuel sending unit. You can reach over the driveline to access this.
STEP 3
Support the bottom of the tank with a floor jack or transmission jack.
STEP 4
Disconnect the blue and white fuel connectors. Please see our install video if you need help with removing these.
STEP 5
Remove both fuel tank straps with a 15mm socket.
STEP 6
If you can reach the fuel sending unit electrical connector, you can disconnect it before dropping the tank. If you need more room to disconnect the connector, lower the tank 6″ and disconnect. Slide the red lock out and depress the tab in the middle then slide the connector off.
STEP 7
Hit the locking ring counter clockwise to release the OEM sending unit.
STEP 8
Place the included S&B oring in the oring groove on the S&B Tank. Install the sending unit and make sure to not damage the fuel float.
STEP 8A
The tab on the sending unit should face the skinny arrow on 2017-19 trucks and the block arrow on 2011-16 trucks
STEP 9
Press down of the locking ring to get the ring started and then hit the ring close wise until the locking ring goes under the indention in the ring and is locked into place.
STEP 10
Place the included check valve into the filler hose. The arrow on the valve should be facing into the tank.
STEP 11
Take the half strap and attach it to the frame using the oem bolt. The longer and more squared off side will be the side that attaches to the frame. This strap was updated to have a welded on nut instead of the slip nut
STEP 12
Install the included U-Bolt over the frame. Once installed, make sure there is space between the brake lines and U-Bolt. If the brake lines are touching the U-Bolt, call us and don’t install the tank.
STEP 12B
If you have a truck with a 2 piece driveline. The u-bolt will go through the drain hole in the crossmember. Remove the fuel lines from the clips to give room for opening up the hole.
STEP 12C
Using a step drill bit, open up the hole until their is enough room for the u-bolt to fit through.. Touchup the metal with paint to prevent rust.
STEP 13
Center the hydraulic jack underneath the fuel tank and raise it into position. Lift Install: Hydraulic Jack Floor Install: Floor jack with added support to properly hold tank
STEP 14
Attach the front support strap to the U-Bolt. Then tighten the washers and lock nuts onto the u-bolt.
STEP 15
Install the middle and rear S&B fuel tank straps. Make sure you take the supplied S&B bolt and apply blue lock-tight to the body of the bolt. – 15mm socket and extension
STEP 16
Reinstall fuel filler hose to filler on vehicle side and tighten clamp
STEP 17
Route the 2 5/16″ rollover valve hoses and zip tie them up to the filler.
Step 18 CHECKLIST
This final checklist is very important.
#1 Make sure all nuts are safely fastened and torqued.
#2 Ensure there is proper driveshaft clearance and the straps are tight
#3 Double check fuel line connections, the electrical connection as well as the vent and fill lines.
#4 Lastly, fill the tank full and check for any leaks. If you have any questions, call or text us at 909.675.1313
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