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USD 1482.39
Part #: TF0800116180

Transfer Flow 0800116180 37 Gallon In-Bed Auxiliary Fuel Tank

1999+ Ford | 2001+ GM | 1999+ Dodge
Part #: TF0800116180
$ $1,482.39
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Increase your pickup's fuel capacity and driving range with the Transfer Flow 0800116180 37 Gallon In-Bed Auxiliary Fuel Tank System! The Transfer Flow In-Bed 37 Gallon Auxiliary Tank is built from 14-gauge aluminized steel and features a durable, black powdercoated finish. To prevent fuel sloshing, the tank is also baffled in 3 places. 

Using the patented technology of the Transfer Flow TRAX 3 Operation System, the dash mounted LCD displays the percentage of fuel in both the main and auxiliary fuel tanks, and lets you know when the fuel is being transferred from the auxiliary tank to the main fuel tank. The fuel transfer process is fully automatic! 

The 37 Gallon Fuel Tank is small in size but still has incredible capacity. It's lower height allows it to be used with many popular cargo accessories as well as retractable bed covers and tonneau covers. Made in the USA! Some trucks require additional components. Please see application guide and application notes below. 

Fuel Tank Dimensions: 37 Gallons -  50" Long x 19-1/2" Width  x 17-7/8" Height (add 3" to height and width for fillneck and mounting brackets)


  • 37 Gallon Capacity 
  • TRAX 3 Operating System 
  • Black Powdercoated Finish 
  • For Diesel Fuel Only 
  • 6-Year Unlimited Mileage Warranty
Application Guide:
Fits Ford 1999-2015 full size trucks with short (6.5') and long (8') beds.
Fits GM 2001-2015 full size trucks with short (6.5') and long (8') beds.
Fits Dodge 1999-2015 full size trucks with short (6.5') and long (8') beds.

Application Notes:
2001-2004 GM 6.6L Duramax LB7 requires Fillneck Tee Kit (#0200114278)
2010-2012 Ram Mega Cab SRW trucks require Fillneck (#0500115461)
This tank may not fit on 2013-2015 Ram Pickups with 5th Wheel Prep Package 

 Truck Freight Item: Allow 1-2 Weeks for delivery. Truck freight charges apply.


  • MFG. Number 800116180
  • Manufacturer Name Transfer Flow Inc.
  • Shipping Weight 250.00 lb.
  • Shipping Length 100 in.
  • Shipping Width 100 in.
  • Shipping Height 100 in.
  • Fuel Type Diesel / Gas
  • Warranty Yes
  • Warranty Info 6 Year / Unlimited Mileage
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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Most Popular Questions

Tank plumbing I am new to trucking and I assume that this tank is plumbed directly to the vehicles fuel tank. Is this correct? If so, how will it be plumbed without voiding the vehicles warranty?
View Staff Answer 

The TRANSFER FLOW 0800116180 37 GALLON IN-BED AUXILIARY FUEL TANK utilizes Transfer Flow’s TRAX 3 Operating System to transfer fuel from the auxiliary fuel tank to the main vehicle fuel tank.

You can see a general installation video here.