Transfer Flow In-Bed Auxiliary Fuel Tanks

Features

Experience unmatched flexibility with Transfer Flow’s lineup of auxiliary fuel tanks, available in capacities from 37 to 100 gallons and designed to meet a wide range of driving needs. From cross-country adventures and RV weekends to off-road exploration or everyday convenience, there’s a solution built to enhance your journey.

These auto-transfer auxiliary fuel tanks significantly extend your driving range, giving you confidence on long hauls and in remote areas where fuel stops are few and far between. Designed for seamless integration with your pickup truck, these systems deliver dependable performance with effortless operation. Powered by the advanced TRAX 4™ operating system, fuel transfers happen automatically—no switches or manual intervention required.

Explore The Store

Your pickup is more than just a truck. It’s your toolbox. Your toybox. Your carryall. Your personal space. A reflection of who you are. We understand that. So when we engineer caps and tonneaus for your pickup, we make sure they are going to help you make the most of every mile, job, or adventure.

Spokane, WA

7225 E Sprague Ave Spokane Valley, WA 99212

Phone 509-924-9999

Fax 509-927-4838

M-F 8:00am – 5:00pm

SAT 9:00am – 3:00pm

Coeur d'Alene, ID

254 W Kathleen Ave Coeur d'Alene, ID 83815

Phone 208-765-4444

Fax 208-664-6113

M-F 8:00am – 5:30pm

SAT 9:00am – 3:00pm