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The 30-gallon Titan Spare Tire Auxiliary Fuel System for 2011–2019 GM 2500/3500 Duramax models installs beneath the bed to add significant diesel capacity while preserving cargo space. It includes a military-grade polymer tank, mounting hardware, pump and a simple electronic controller that shows fuel level and initiates transfers from the comfort of the cab, enabling flexible reserve or on-the-go fuel management.
Titan Fuel Tanks 11-19 GM 2500/3500 Duramax 30 Gallon Spare Tire Auxiliary Fuel System
