Close
Skip to content

Close
Advantage Exclusive

RDS Aluminum Auxiliary Fuel Tank — 20-Gallon, Rectangular, Diamond Plate, Model# 74551

Item# 59648
Close
RDS Aluminum Auxiliary Fuel Tank — 20-Gallon, Rectangular, Diamond Plate, Model# 74551

Hover over image to zoom

Click image to enlarge

Tap image to enlarge

Only $419.99
Add to Cart
  • 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 SpinSecure locking fuel cap
See full description
Factory Shipped —
Estimated Delivery: 7 - 9 Business Days
Ship it | See Shipping Options
Not Available in Stores
 

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) Fuel tank and 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 SpinSecure locking 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
Key Specs
Item# 59648
Brand RDS
Manufacturer's Warranty 12 months parts / 12 months labor
Ship Weight 80.0 lbs
Tank Size (gal.) 20
Compatible With Diesel
Shape Rectangle
Tank Dimensions L x W x H (in.) 48 x 20 x 7
Overall Dimensions L x W x H (in.) 50 x 21 x 7
Outlet Diameter (in.) 3/8
Inlet Diameter (in.) 2
Material Type Aluminum
Finish Type Diamond plate
UV Inhibitors No
Mounting Hardware Included Yes
DOT Approved Yes

Customer Reviews

Product Question + Answer
Accessories Frequently Purchased with this Item
We Recommend
RDS Diesel Install Kit for Auxiliary Diesel Fuel Tank — Fits 1999–Current Ford, 2011–Current Chevrolet and GMC, and Dodge 1999–2012, Model# 011025
RDS Diesel Install Kit for Auxiliary Diesel Fuel Tank — Fits 1999–Current Ford, 2011–Current Chevrolet and GMC, and Dodge 1999–2012, Model# 011025
Item# 3490901
In Stock Online
Only $69.99
Add to Cart
RDS Diesel Install Kit for Auxiliary Diesel Fuel Tank — Fits Chevy/GMC 1999–2010, Model# 011029
RDS Diesel Install Kit for Auxiliary Diesel Fuel Tank — Fits Chevy/GMC 1999–2010, Model# 011029
Item# 3490902
In Stock Online
Only $69.99
Add to Cart
RDS Diesel Installation Kit for Auxiliary Diesel Fuel Tank — Fits 2013-Current Dodge Diesel Passenger Trucks, Model# 011408
RDS Diesel Installation Kit for Auxiliary Diesel Fuel Tank — Fits 2013-Current Dodge Diesel Passenger Trucks, Model# 011408
Item# 43748
In Stock Online
Only $69.99
Add to Cart
Safety
3M Metaliks Sport Safety Glasses — Indoor/Outdoor Tinted Lens, Model# 11345-00000
3M Metaliks Sport Safety Glasses — Indoor/Outdoor Tinted Lens, Model# 11345-00000
Item# 174694
In Stock Online
Only $9.99
Add to Cart
FREE SHIPPING - Gravel Gear Men's Utility Work Gloves - Black and Tan, Large FREE SHIPPING - Gravel Gear Men's Utility Work Gloves - Black and Tan, Large
Item# 77489L
In Stock Online
Only $16.99

Free Shipping

Add to Cart
Replacement Parts
Call To Order: 1-800-657-0516

Mon - Fri 7:00 AM - 6:00 PM (Central)
Sat 7:00 AM - 3:00 PM (Central)

Don't Know Your Part Number?

Locating the part number for your item ahead of time will help ensure you quickly receive the correct items.

Find Parts
Parts + Service Available at Stores

Look for stores that have this icon:

Parts + Service

Find Stores

Compare with Most Popular Auxiliary Fuel Tanks

See All Auxiliary Fuel Tanks
 
Currently Viewing
 
 
 
 
 
RDS Aluminum Auxiliary Fuel Tank — 20-Gallon, Rectangular, Diamond Plate, Model# 74551 The price is $419.99.
RDS Aluminum Auxiliary Fuel Tank — 20-Gallon, Rectangular, Diamond Plate, Model# 74551
(Not Yet Rated - New)
Item# 59648
Factory Shipped —
Estimated Delivery: 7 - 9 Business Days
Only $419.99
4.7 / 5 (10)
Item# 349004
Factory Shipped —
Estimated Delivery: 7 - 9 Business Days
Only $439.99
4.7 / 5 (28)
Item# 3490044
Factory Shipped —
Estimated Delivery: 7 - 9 Business Days
Only $439.99
5 / 5 (3)
Item# 15344
Factory Shipped —
Estimated Delivery: 7 - 9 Business Days
Only $529.99
4.6 / 5 (9)
Item# 3490113
Factory Shipped —
Estimated Delivery: 7 - 9 Business Days
Only $549.99
Hide Similarities
Tank Size (gal.) 20 40 32 63 60
Compatible With Diesel Diesel Diesel Diesel Diesel
Shape Rectangle Rectangle Rectangle Wedge Rectangle
Tank Dimensions L x W x H (in.) 48 x 20 x 7 60 x 20 1/2 x 9 50 x 20 x 9 50 x 18 x 19 55 x 20 x 12 3/4
Overall Dimensions L x W x H (in.) 50 x 21 x 7 60 x 21 1/2 x 11 1/2 52 x 21 x 11 1/2 52 x 19 x 21 1/2 57 x 21 x 15 1/4
Outlet Diameter (in.) 3/8 - 3/8 FPT - 3/8 drain fitting
Inlet Diameter (in.) 2 - 2 - 2
Material Type Aluminum Aluminum Aluminum Aluminum Aluminum
Finish Type Diamond plate Diamond plate Diamond plate Diamond plate Diamond plate
UV Inhibitors No - - - -
Mounting Hardware Included Yes - Yes, mounting tabs Yes Yes, mounting tabs
DOT Approved Yes Meets DOT standards Meets DOT standards Meets DOT standards Meets DOT standards