Our auxiliary conversion kit item #3490902 will work with 1999 to 2010 Chevy trucks with a 2" fill line. If your truck has a 1-1/2" fill line, you will want to use our item #3490901.
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RDS Aluminum Auxiliary Fuel Tank Toolbox Combo, 51-Gallon Capacity, Rectangular, Diamond Plate, Model# 72746

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Shipping:
Free shipping (lower 48 states) - Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
Not Available
- Aluminum Tank and Toolbox - NO RUSTING
- Heavy duty 0.125 ga. aluminum used for tank
- Toolbox built using 0.058 ga. aluminum
- Fully welded seams
- Reinforced lid
See full description
Description
Key Specs
Reviews
Q & A
Accessories
Warranty
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Product Summary
What's Included
- (1) Fuel tank toolbox combo
Downloads
Features + Benefits
- Aluminum Tank and Toolbox - NO RUSTING
- Heavy duty 0.125 ga. aluminum used for tank
- Toolbox built using 0.058 ga. aluminum
- Fully welded seams
- Reinforced lid
- 100% pressure tested and submerged to test for leaks
- Aluminum mounting brackets
- Tank can be used to transport diesel
- Cannot be used to transfer gasoline to another vehicle
- Built-in tank baffles to reduce sloshing
- Manual fuel sight gauge
- Gas springs to assist opening and holding toolbox lid
- Locking stainless steel toolbox lid
- Enclosed fuel fill area for added protection
- Tank meets DOT Standards
- Gravity feed diesel
- Increase your driving range
- Allows you to shop for better fuel prices
- includes 3/8in. FTP drain plug
- Low profile design allows unit to work well with most bed covers
Key Specs
| Attribute | Specification |
|---|---|
item# | 3490109 |
Brand | RDS |
Manufacturer's Warranty | 12 months parts/12months labor |
Ship Weight | 143.0 LB |
Capacity | 51 Gal |
Shape | Rectangle |
Material | Aluminum |
| Attribute | Specification |
|---|---|
Finish | Diamond Plate |
Inlet Port | 2 in |
Outlet Port | 2 in |
Mounting Hardware Included | Yes |
DOT Approved | Yes |
Product Weight | 90 lb |
Reviews
Questions & Answers
Questions
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· 16 years ago
Do you have the install kit for 2004 Chevrolet Truck (gas) K-1500
Someone said install kit # 3490902 was needed for their truck. What does this kit fit? Do I need this kit or another?
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ProductExpert29· 4 years ago
Helpful?
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ProductExpert7· 16 years ago
Item 3490902 will work with any passenger truck line up through 350 or
3500 vehicle. Current Model Year.Helpful?
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· 3 months ago
Is this ok for gasoline
1 answer-
ProductExpert10· 3 months ago
This RDS 51-gallon Auxiliary Fuel Tank Toolbox Combo (Model 72746) is not intended for gasoline.
Helpful?
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· 3 years ago
Will this kind of tank stop filling on it's own once it gets the OEM tank filled? For example driving down the road would I have to stop to turn shut off valve to off position? So it don't overfill my OEM tank?
1 answer-
ProductExpert12· 3 years ago
With the appropriate diesel installation kit, item 3490901, item 3490902 or item 43748, there is a check valve in the "T" line that goes to the existing tank. It will shut off the auxiliary tank. The most important thing to prevent leaking is to be sure the main gas cap is on tight.
Helpful?
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· 3 years ago
Does this model have a locking cap?
1 answer-
ProductExpert6· 3 years ago
The auxiliary fuel tank/toolbox combo does not have a locking fuel cap. The tool box itself would be locked.
Helpful?
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· 11 years ago
Can you show the install instructions for aux tank?
1 answer-
ProductExpert29· 4 years ago
Detailed instructions will be included with this tank when delivered. You can also contact the manufacturer directly for installation assistance.
Helpful?
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· 12 years ago
Is there a in line fuel filter for this unit.
1 answer-
ProductExpert41· 12 years ago
At Northern we do not sell a in line fuel filter for this box but you could pick one up at a local parts warehouse.
Helpful?
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· 13 years ago
Is there a 12 volt valve I can install inline to activate from the cab of the truck while traveling?
I would like to be able to start and stop the gravity feed in to the main tank.
1 answer-
ProductExpert29· 4 years ago
A 12V control is not available for diesel gravity feed from this tank into your truck's fuel system. The auxiliary conversion kits we offer will include a shut-off valve to install so you can shut off the fuel manually.
Helpful?
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· 16 years ago
Fuel Tank Tool Box combo
Model# 72746
Is this a Flush mount level with box so I can use my tonneau cover?I have a 2008 Chev 2500HD short box
Can this be installed so it Gravity feeds fuel into the orginal tank?
1 answer-
ProductExpert29· 4 years ago
The overall measurements of this box are 50"L x 20"D x 19"H. It does work well with a most bed covers. You would want to measure your truck bed to make sure this will fit. Please see our item #3490902 for an auxiliary conversion kit that works with your truck.
Helpful?
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· 16 years ago
Does this tank have a valve to hook up a pump to pump fuel out?
1 answer-
ProductExpert29· 4 years ago
This auxiliary tank does not have a fitting to install an electric pump. Please see our item #47488 or #34901004 for similar tanks that can have electric pumps installed.
Helpful?
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Warranty
Manufacturer's Warranty
12 months parts/12months labor
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Specifications
51 Gal
112 Gal
51 Gal
50 Gal
Rectangle
Rectangle
Rectangle
Square
Aluminum
Aluminum
Aluminum
Steel
Diamond Plate
Diamond Plate
Diamond Plate
Powder-Coat
2 in
2 in
1-7/8 in
2 in
2 in
3/8 in
2 in
2 in
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
90 lb
155.0000 lb
88 lb
97 lb
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Aluminum
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White
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Gasoline, Diesel, and Aviation Fuel
Gasoline, Diesel, and Aviation Fuel
Non Combustible
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55.0 x 30.0 x 23.25 in
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See All Fuel Transfer Tanks
See All RDS Fuel Transfer Tanks
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