Air and Fuel› Fuel Cells, Tanks and Components

RDS

51 GALLON TANK AND TOOLBOX COMBO W/LIQUID SECURE 50 X 20 X 22.75

$1,530.56

SKU: R018 72747

In Stock
In Stock
Ships by Jun 11
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The RDS auxiliary fuel tank is designed to feed the main fuel tank of your truck to increase driving range. It mounts securely in the back of your truck and connects to the factory fuel system using a gravity feed diesel kit (not included). This tank features a toolbox on top for storage, a lockable fuel cap, drain fitting, withdraw fitting, safety vent, sight gauge, and internal baffles. All RDS tanks meet DOT standards and are made in the USA.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRDS
Part NumberR018 72747

Videos

RDS 50 GAL. WITH GPI 15GPM PUMP

RDS 50 GAL. WITH GPI 15GPM PUMP
What You Should Know - RDS Rectangular Auxiliary Fuel Tank

What You Should Know - RDS Rectangular Auxiliary Fuel Tank
Transform your truck with the 91 gallon RDS toolbox/fuel cell! (THIS IS A MUST HAVE)

Transform your truck with the 91 gallon RDS toolbox/fuel cell! (THIS IS A MUST HAVE)
RDS 90 Gallon Aluminum Auxiliary Fuel Tank Install on my 2024 Ram 3500 Dually

RDS 90 Gallon Aluminum Auxiliary Fuel Tank Install on my 2024 Ram 3500 Dually
Installing Gravity Fed Fuel Tank on new F350!

Installing Gravity Fed Fuel Tank on new F350!
Increase Your Truck's Range and Cure Range Anxiety: RDS Auxiliary Tank & Toolbox Installation

Increase Your Truck's Range and Cure Range Anxiety: RDS Auxiliary Tank & Toolbox Installation

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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