Skip to content

Complete Your Solution

  • RDS Aluminum Auxiliary Fuel Tank, 20-Gallon, Rectangular, Diamond Plate, Model# 74551
  • RDS Diesel Install Kit for Auxiliary Transfer Tank Conversion, Fits 1999-Current Ford, 2011-Current Chevrolet and GMC and Dodge 1999-2012, Model# 011025
  • RDS Diesel Install Kit for Auxiliary Transfer Tank Conversion, Fits Chevy/GMC 1999-2010, Model# 011029
  • RDS Diesel Install Kit for Auxiliary Transfer Tank Conversion, Fits 2013-Current Dodge Diesel Passenger Trucks, Model# 011408
Price for all four:

$892.96

Frequently Bought Together

Product Summary

This RDS 20-gallon auxiliary tank is a gravity-feed diesel tank that lets user increase their driving range and shop for better fuel prices. No more constant stopping when pulling a travel trailer or 5th wheel. Intended for highway use with diesel. Fits under a low profile toolbox. It is the user's responsibility to comply with local, state and federal requirements pertaining to safe transportation, loading, and discharging of tank contents. U.S.A.

What's Included

    (1) RDS Aluminum Auxiliary Fuel Tank -- 20-Gallon, (1) Mounting hardware kit

Features + Benefits

  • Fits under a low profile toolbox
  • Overall 50in.L x 21in.W x 7in.H
  • 20-gallon capacity
  • Vehicle rollover safety valve (vent)
  • Front corner fill with lockable fuel cap
  • Includes 3/8in. FPT drain plug
  • Internal baffles to reduce sloshing
  • Rustproof aluminum construction
  • Heavy-gauge mounting tabs
  • Tank made from heavy-duty 0.125-ga. aluminum
  • Fully welded seams
  • 100% pressure tested and submerged to test for leaks
  • Not intended for use with gasoline
  • Tank can be used to transport diesel
  • Tank meets DOT standards
  • Gravity feed diesel
  • Diesel install kits (Item#s 3490901, 3490902 and 43748), are also available (sold separately)

Key Specs

AttributeSpecification

item#

59648

Brand

RDS

Manufacturer's Warranty

12 months parts/12months labor

Ship Weight

95.0 LB

Capacity

20 Gal

Shape

Rectangle

Material

Aluminum
AttributeSpecification

Finish

Diamond Plate

Inlet Port

2 in

Outlet Port

3/8 in

UV Inhibitors

No

Mounting Hardware Included

Yes

DOT Approved

Yes

Compatible With

Diesel

Accessories We Recommend

Warranty

Manufacturer's Warranty

12 months parts/12months labor