Most RDS transfer tanks also provide auxiliary fueling. RDS offers a full assortment of tanks in various capacities and dimensions to fit your needs.

1 1/2 Diesel Installation Kit, Diesel Auxiliary Tank Install Kit Compatible with Gravity Fueled Auxiliary Fuel Tank, Only for Diesel (11025) : Automotive

1 3/4 Diesel Installation Kit, Diesel Auxiliary Tank Install Kit Compatible with Gravity Fueled Auxiliary Fuel Tank, Only for Diesel (11408) : Automotive

1 1/2 Auxiliary Fuel Tank Install Kit 11025 Diesel Installation Kit For Ford 1999-2019 For Dodge 1999-2012 For Chevy and GMC 2011-2019 : Automotive

LATCH.IT Auxiliary Fuel Tank Kit, 1.5” Fill Line Auxiliary Fuel Tank Gravity Feed Kit Compatible w/ Diesel Vehicles

1 3/4 Installation Kit Compatible with Rds Auxiliary Fuel Tank Install Kit for Gravity Fueled Auxiliary Fuel Tank and Newer Models with 1¾ Fill Cord, Only for Diesel(11408) : Automotive

RDS MFG INC Fuel Tank - 60-Gallon : Automotive

Southern Truck 11408 1 3/4 Diesel Auxiliary Install Kit : Automotive

11025 Auxiliary Fuel Tank Install Kit Fits for Ford Dodge Chevy GMC for Diesel Gravity Feed Auxiliary Fuel Tank Kit with 1 1/2 Fill Line : Automotive

Auxiliary Fuel Tank Install Kit 1 1/2 11025 Diesel Installation Kit Compatible with All Ford 1999-2019, All Chevy / GMC 2011-2019, All Dodge 1999-2012 : Everything Else

Auxiliary Fuel Tank Install Kit Diesel Installation Kit Compatible With 1999-2022 Ford 1999-2012 Dodge 2011-2022 Chevy/GMC, Gravity Fueled Auxiliary Fuel Tank With 1 1/2 Fill Line Replace# 11025 : Automotive

Auxiliary Fuel Tank Install Kit Fit for Ford Dodge Ram Chevy Silverado GMC Replaces 11025,Auxiliary Fuel Tank Gravity Fueled Auxiliary Fuel Tank with 1 1/2 Fill Line : Automotive

RDS 11025 Diesel Install Kit for Auxiliary Diesel Fuel Tank

Rds 72745Pc - Combo Auxiliary Fuel Tank With Fuel Filler Shroud : Automotive

RDS MFG INC 11025 Diesel Install Kit : Automotive

How to Install a Diesel Auxiliary Tank, In bed Fuel Tank Add on