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The 30-gallon Titan Spare Tire Auxiliary Fuel System adds substantial diesel range for 2013–2021 Ram 2500/3500 pickups with Cummins engines by converting the spare-tire area into an auxiliary tank. The system includes a lightweight cross-linked polyethylene tank, mounting kit, pump, hoses, and an electronic in-cab controller that monitors level and enables on-demand transfer while leaving truck bed capacity unaffected.
Titan Fuel Tanks 13-21 Dodge/RAM 2500/3500 30 Gallon Spare Tire Auxiliary Fuel System
