RDS Auxiliary Fuel Tank — 37-Gallon Capacity, Model# 71804
This tank offers extra fuel capacity for a boat, generator, or other specialty application using diesel fuel. U.S.A.
It is the user’s responsibility to comply with local, state and federal requirements pertaining to safe transportation, loading and discharging of tank contents.
Product Specs
Key Specs
Tank Size (gal.) | 37 |
Tank Dimensions L x W x H (in.) | 50 x 20 x 9 |
Additional Specs
- 37-gallon rectangle tank
- Tank size: 50in.L x 20in.W x 9in.H
- Made of durable .090 aluminum
- Tank includes a vented fill cap and dual withdrawal tubes (2nd tube can be used for diesel applications as fuel return)
- Designed for exterior areas
- Not intended to be used for gasoline
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Customer Product Reviews
Overall Rating:
4.7
/
5
15 of 16(94%)would recommend this product to a friend.
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Review This Product
Overall Rating:
5
/
5
Worth the money,
July 9, 2007
By gene427
from Mesa, Arizona
"What a difference this tank makes. I pull a large toy hauler, however, I do not pull it enough to be real comfortable in and around tight spaces. I bought the tank to give me some added fuel to reduce the times needed getting fuel. It is not always easy pulling into these small tight unfamiliar gas stations. The fuel tank allows me to pick and choose the gas station and/or city where I fuel up. This has been a great added addition to our camping pleasure and a great stress reliever. On a side note, I have small kids that every time I would stop for fuel they would hit me up for more treats and drinks. I am confident that over time, the reduced junk food purchases will more than pay for the cost of the tank. The delivery and service of Northern Tools on this purchase was fantastic!"
What is your level of technical expertise? Home Handyman
2 of 2 people found this review helpful.
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Overall Rating:
5
/
5
37 gallon diesel tank,
November 4, 2009
By missy924
from Kentucky
"I ordered this diesel tank along with the fill kit for my 2007 Dura Max. I pull a 38' fifth wheel, so I needed to extend my traveling distance between fill ups. This 37 gallons auxillary tank along with my trucks 26 gallon tank gives us all the fuel we need before we want too make a pit stop. This is an excellent buildt low profile tank and it looks great too ! The fuel guage on the tank is an added feature I love, If you watch the guage, you won't spill any fuel.
I am sure glad that I didn't go larger because of the added fuel weight. It was very, easy to install, it works great and looks like it belongs in my truck. I recommend this tank !"
I am sure glad that I didn't go larger because of the added fuel weight. It was very, easy to install, it works great and looks like it belongs in my truck. I recommend this tank !"
What is your level of technical expertise? Professional
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Overall Rating:
5
/
5
aux diesel tank,
November 2, 2009
By belldog
from chattanooga,,,,,tn
"my son and I installed tank on 2005 Chevy 2500hd Duramax in about 2 hrs. Very easy. Would like electric tranfer switch."
What is your level of technical expertise? Beginner
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Overall Rating:
5
/
5
Fuel tank makes travel a pleasure,
July 21, 2009
By mochawil
from Phoenix, AZ
"I have a 2006 short bed Duramax, I don't know why GM put a 25 gal fuel tank in this truck. If the engineers can put that much engine in that small of a space they could have added an extra 9 gallons of fuel like they did in the long bed.
25 gal would be okay if you were just using the truck for normal driving, but when you add a toyhauler your millage drops to about half. When I go camping and leave from phoenix to go to the mountains I would need to fill up before going into the back country to assure that I could get back out to civilization, this always gave me an uneasy feeling.
I have a hard tonneau cover so I can't use a tank that goes over the top of the side of the truck, and using a tall tank robs me of usable space.
This tank is great I can pull the cover off and park the front end of a quad on the tank, so I don't lose much space. The aux line that feeds into the main filler neck works great. I added a manual valve to that line and keep it shut off until I need fuel when get to where I am going or to about 1/4 tank and I then open the valve up and it starts filling the tank.
The only thing that is bad, is the computer on the truck, it does not like the fuel gauge going up, consequently if it gets close to full, the fuel gauge goes to E and gives you yellow light. Just stop the truck and take a break, the computer will reset itself after you restart the truck after a bit. If you leave your valve open it will not over fill the tank if you use the the filler kit they have listed as a option.
I don't drive my truck much during the week, so I can pick the time and the place to fill up. Prices, location, and time are at my disposal not when I need them, this saves me money. I just got back from Vegas, I filled up here and still had 3/4 of a tank upon return. I am glad I purchased this tank and would highly recommend it to anyone that pulls a trailer."
What is your level of technical expertise? Home Handyman
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Overall Rating:
5
/
5
37 gallon fuel tank,
July 20, 2009
By DrillbitTailor
from Indiana
"I purchased this tank and the diesel fuel neck installation kit several years ago, and mounted it in my F350-pickup box. It fits under my roll-n-lock box and makes good use of the space, The fuel guage on the tank is a very handy plus. If I am pulling a heavy trailer, I wait until I am between 3/4 and 1/2 on the main tank and stop for a quick break and open the fuel valve. It then flows into the main tank at a rate that keeps up with the fuel consumption and provides a long day's driving range for me. I love not having to hunt for fuel all the time and filling up one time per day. When solo, the truck can go so far you can choose if and when you ever need to add fuel and hit the low prices identified by internet."
What is your level of technical expertise? Home Handyman
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Overall Rating:
5
/
5
Great from start to finish,
March 23, 2009
By Traveler55
from Central Missouri
"Shipped quickly, no bumbs, bruses or dents. This Was so easy to install, I was afraid it would'nt work. But it works great, just as described. Not only a quality product, it looks great too! Sorry I waited so long to get one."
What is your level of technical expertise? Home Handyman
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Overall Rating:
2
/
5
good thing we had ductape,
March 4, 2009
By weretherethelp
from anywere diaster strikes
"Being a SAR(search and rescue) team we need to be moible with the proper equitment we only take the finest equitment and if we use it it has to work when we need it because when we put all theese things together it means life or death
we used it alot but about 5 months ine anywere from 300-500 refills
we noticed if we hit a bump any bigger then 1 icnh a little fuel would leak wout of the refing whole were the cap is about 3 days later and about a gallon of fuel lost it was coming out quik if we even hit a small bump
luckily we keep ductape in all the vehicles and boats"
What is your level of technical expertise? Professional
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Overall Rating:
5
/
5
Aux Fuel Tank,
August 18, 2008
By jliveit
from Ohio
"This is a very nice tank, also ordered the fill kit, very easy to install and now gives me the option to pull my 5th wheel greater distance and shop for better fuel price. Would recomend this tank and fill kit to anyone shopping for a Aux fuel tank, even came with a fuel gauge."
What is your level of technical expertise? Home Handyman
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Overall Rating:
5
/
5
Stress Saver,
May 9, 2008
By verno
from Crownsville, Md
"Pulling a fifth wheel , I would often stress out about where to fuel, as most fuel stops on the road are not made for large fitth wheel rigs. With the tank, it is nice to be able to choose where we get fuel now. Another plus is being able to fill up or top off when travling when you come across fuel at a good price.
Very easy to install, the auto fill works great with the tank, looks great, and easy to fill."
Very easy to install, the auto fill works great with the tank, looks great, and easy to fill."
What is your level of technical expertise? Home Handyman
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Overall Rating:
5
/
5
Auxilliary gas tank,
April 15, 2008
By Kingdomworker
from Minnesota
"Tank was delivered promptly, which is a real plus. The installation went smoothly. Having the additonal fuel storage has been a real blessing. This means not having to stop as often for fuel, nor having to figure out which places to stop at. I recommend this tank to anyone with similar needs."
What is your level of technical expertise? Home Handyman
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Manufacturer Warranty: 12 months parts / 12 months labor
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