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

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

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Only $429.99
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  • 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
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Factory Shipped —
Estimated Delivery: 7 - 9 Business Days
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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

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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)

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Tank Size (gal.) 20 20 40 32 63
Compatible With Diesel Diesel Diesel Diesel Diesel
Shape Rectangle Rectangle Rectangle Rectangle Wedge
Tank Dimensions L x W x H (in.) 20 x 14 x 18 48 x 20 x 7 60 x 20 1/2 x 9 50 x 20 x 9 50 x 18 x 19
Overall Dimensions L x W x H (in.) 22 x 14 x 20 1/2 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
Outlet Diameter (in.) 3/8 3/8 - 3/8 FPT -
Inlet Diameter (in.) 2 2 - 2 -
Material Type Aluminum Aluminum Aluminum Aluminum Aluminum
Finish Type Smooth Diamond plate Diamond plate Diamond plate Diamond plate
UV Inhibitors - No - - -
Mounting Hardware Included Yes, mounting bracket Yes - Yes, mounting tabs Yes
DOT Approved Meets DOT standards Yes Meets DOT standards Meets DOT standards Meets DOT standards