DOT-Compliant Diesel Fuel Expansion You Can Trust
Dee Zee auxiliary tanks are hydrostatically tested and meet DOT and FMCSA requirements, making them legal and safe to connect directly to a diesel vehicle’s fuel system for extended range and fewer refueling stops.
Built Heavy-Duty for Long-Term Reliability
Constructed from non-rusting Brite-Tread aluminum or 14-gauge steel with NRT™ corrosion protection, these tanks feature internal baffles and a radius-curve design to minimize weld stress and control fuel movement on the road.
Flexible, Made-in-USA Solutions for Work and Off-Road Use
Available in multiple shapes, capacities, and combo tank-toolbox configurations, Dee Zee auxiliary tanks are American-made and designed to adapt to your truck while securely refueling equipment or extending driving range, without sacrificing bed functionality.
The Elite Promise
We promise to make it right 100% of the time. We'll take care of any damages or defects, no matter the issue. Just contact our highly-rated USA-based commercial customer service team. Know any purchase from EliteTruck.com comes with the industry's most comprehensive product & service guarantee.