Available for Pre-order, estimated ship date in early 2023.
The S&B Tanks 68-gallon midship replacement fuel tank will extend the range of your crew cab long bed GMC 6.6L L5P Duramax diesel truck. Featuring cross linked polyethylene (XLPE) construction, this tank offers durability and a lifetime warranty. This S&B Tank directly replaces your factory without any cutting, drilling, or special modifications this makes for an easy bolt-in installation. S&B Tanks are engineered with a built-in baffled design to minimize fuel sloshing. This tank also features an integrated drain plug that can be drilled out and resealed in case of an accidental gasoline or DEF fluid mishap.
- Direct fitment for 2011-2019
- Bolt-in installation
- 68 Gallon capacity
- Heavy duty cross link polyethylene
- Internal baffles keep fuel near pickup tube & prevent sloshing
- Limited lifetime warranty
The fuel gauge will continue to work however the distance to empty will not be accurate. There is not a way to update the fuel tank size for the distance to empty to be accurate. The fuel gauge will remain on "F" for a bit longer because of the fuel above the float. The float's empty position in the S&B Tank is the same as the OEM tank. Since the bottom surface area on the S&B Tank is larger, the 68 Gallon tank with have a greater fuel reserve.
GM trucks monitor for an inoperative fuel gauge. When the truck thinks there is a problem it will drop the gauge to empty to get the driver’s attention. High capacity fuel tanks may cause the truck to think there is a problem because the fuel level sensor float arm moves slower than stock. If this happens, the gauge will return to its normal position after restarting the engine.