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The Titan 30‑Gallon Spare Tire Auxiliary Fuel System (STAFS) provides a practical, high-capacity diesel reserve tank that repurposes the space under your truck originally used for the spare tire. Specifically engineered for 2001–2010 GM 2500 and 3500 pickups equipped with the Duramax diesel engine, this system delivers extra fuel capacity without sacrificing truck‑bed space or cargo layout.
Constructed from military-grade, cross-linked polyethylene (XLHDPE), the tank is lightweight, corrosion-resistant, and built to last — backed by Titan’s lifetime warranty. The integrated pump system and included electronic controller allow for easy fuel transfer: simply press a button to send fuel from the STAFS tank to your main tank, either on demand or as a reserve backup
Because the tank mounts under the vehicle, bed space remains fully usable. The system includes all necessary hardware, mounting brackets, hoses, valves, pump, filler kit, and controller — everything needed for installation.
Key Features:
30‑Gallon Auxiliary Diesel Capacity — provides significant additional range without impacting cargo space.
Uses Spare Tire Space — installs in place of original spare setup, freeing up bed/truck space.
Complete Fuel System Kit — includes tank, mounting hardware, hoses, valves, pump, filler kit, and electronic controller.
Electronic Transfer Controller — illuminated interface with single‑touch pump activation; fuel transfers to primary tank easily.
Durable XLHDPE Construction — resistant to corrosion, lighter than steel and built for long-term use.
Diesel Only — designed strictly for diesel fuel applications.
Lifetime Warranty — backed by Titan’s warranty for polymer tank products.
Vehicle Fitment:
Make: Chevrolet / GMC
Models: Silverado 2500HD, Silverado 3500, Sierra 2500HD, Sierra 3500 (2001–2010)
Engine: 6.6 L Duramax Diesel
Years: 2001–2010
Bed Type / Cab: All standard/down‑to‑floor spare‑tire GM 2500/3500 trucks of those years
What’s Included:
30‑Gallon Spare Tire Auxiliary Diesel Fuel Tank (STAFS)
Mounting brackets and hardware
Fuel pump, hoses, valves
Universal filler kit (exterior or bed-side mount)
Electronic control unit with fuel-level display and transfer controls
Installation instructions
