We consider a diesel bed tank to be a worthy investment in the long run. Let’s take you step by step, type by type, and find the best diesel bed tank for you.

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Our Top Picks:

Best Overall: Buy: Nipponasia Diesel Bed Tank READ REVIEW

Best With Filler Neck: Buy: Stkusa Diesel Bed Tank READ REVIEW

Best For Easy Installation: Buy: Rds Mfg Inc Auxiliary Fuel Tank READ REVIEW

Best For Car: Buy: Titan Fuel Tanks Diesel Bed Tank READ REVIEW

Best For Worth The Money: Buy: Titan Fuel Tanks Titan Tank READ REVIEW

Best For Very Good Quality: Buy: Rds Mfg Inc Diesel Bed Tank READ REVIEW

Best For Gas: Buy: Dee Zee Main Tank READ REVIEW

Best With Fuel Pump: Buy: Am-Tank Diesel Bed Tank READ REVIEW

Best For Long Service Life: Buy: Vevor Diesel Bed Tank READ REVIEW

Best With Installation Instructions: Buy: Transfer Flow Diesel Bed Tank READ REVIEW

Best For Light Weight: Buy: Dee Zee Diesel Bed Tank READ REVIEW

Best Overall: Nipponasia Diesel Bed Tank

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The Nipponasia diesel bed tank is the epitome of what a great tank should be. The Nipponasia Diesel Bed Tank is special, is made with good products and it works flawlessly. The auxiliary fuel tank is connected to the vehicle's fuel tank, If you use an electric fuel pump to draw gas from the top of the fuel tank, you can perform gasoline auxiliary fueling. Also, it is good for low quality clamps and it installed without issue.

Finally, the nipponasia diesel bed tank provides consistent gravity feed of fuel.

Almost all customers opine that the tank has to be a 1 1/4" pipe on your truck. Also, a few strongly agree that the tank is easy to install and good value for the money. Further, they say that the tank is a perfect addition to functionally operate the 37 gallon aux tank.

• This is suitable for gravity fueled auxiliary fuel tank, only for diesel.
• This fits with no problem to add to that it has 2 different ones listed.
• This is easier and it works perfectly.
• This is installed at the 12o'clock position per the installation directions.

Best With Filler Neck: Stkusa Diesel Bed Tank

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The Stkusa Diesel Bed Tank should be able to handle its purposes and duties with ease. The stkusa diesel bed tank is reliable and it is very nice. Make sure this fits by entering your model number. In addition, the tank is sturdy and it is made with fast shipping.

Above all, the stkusa diesel bed tank is easy to install and maintain, including a fuel tank with oil level sensor and replaceable anti slosh foam in the tank.

Almost all customers found that the tank is made of plastic, so it would work in a marine application. In addition, they also found that the tank is made of good quality materials. Overall, many have used the stkusa diesel bed tank for more than a few months without any complaints, and it shows no sign of giving up.

• This will need to be fastened on risers.
• Universal application to hot rod,ssss street racing, track cars, drift, truck, suvs etc.
• Good investment for the long term.

Best For Easy Installation: Rds Mfg Inc Auxiliary Fuel Tank

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The Rds Mfg Inc Auxiliary Fuel Tank is capable of outshining several other tanks featured in this list in overall features for the price point. The rds mfg inc auxiliary fuel tank fits great and it works as advertised. Auxiliary tanks connect to your vehicle’s fuel tank. Further, this is allowed, if siphoned from the top of the tank by using an electric fuel pump.

The tank features the best price and it is made with quick shipping. Further, the tank is good for country of origin and it is best for customer service. Finally, the RDS mfg inc auxiliary fuel tank is special and it is made with fast shipping.

Most buyers agree that the tank is great for camping rigs. And, a few strongly agree that the tank can be automatically filled while driving. And, a few strongly agree that the tank can be used in a short bed.

• This came with 0 packaging and was covered in dust.
• This was custom made about 8 years ago.
• This comes with a tank level sender but it has the spot ready.
• This has no evaporative recovery system.

Best For Car: Titan Fuel Tanks Diesel Bed Tank

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The Titan Fuel Tanks Diesel Bed Tank is capable of outshining several other tanks featured in this list in overall features for the price point. The titan fuel tanks diesel bed tank features an exclusive low fuel trap design so every gallon can be used, and hangs approximately only 1 ¾" below the bottom of the stock tank. The Manufacturer says: We routinely test our products using state-of-the-art computer simulation as well as actual, physical drop tests. This tank does not fit cab & chassis models.

The tank is built to outlast all competitors. Further, the tank is made in the u.s.axxl mid-ship tank. Above all, the titan fuel tanks diesel bedtank is good for country of origin, It is good for heavy duty and has low style.

Almost all customers found that the tank is designed with particular fuel tanks. Further, a few strongly agree that the tank can now go 1000 miles without refueling. To sum up, many customers have used the titan fuel tanks dieselbed tank for more than a few months without any complaints, and it shows no sign of giving up.

• These make a bigger 65 gallon one if you have a long bed.
• Package dimensions: 193.04 h x 46.99 l x 50.8 w (centimeters).
• This fits like it should, using the stock connections, fuel pump and sender.
• It is very happy, is thick, it is fitment and has a good design.

Best For Worth The Money: Titan Fuel Tanks Titan Tank

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For a low asking price, titan fuel tanks Titan tank has managed to overwhelm their customers by packing as many features as they could. The titan fuel tanks Titan tank is great with great service, comes with fit fine and it is easy. Make sure this fits by entering your model number. Further, this is made worth the money and it fits fine.

Most importantly, the titan fuel tanks Titan tank has followed instructions and it works as advertised.

Most buyers found that the tank fits perfect with a fifth wheel hitch in the bed also. In addition, they strongly agree that the tank was installed correctly, but not a big deal. And, they also found that the tank makes good stuff, and it is a perfect fit under the bed cover.

• Package dimensions: 48.26 cms (l) x 53.34 cms (w) x 154.94 cms (h).
• This makes for easy installation and it is made with good instructions.
• This is made of military grade cross-linked polymer which does not rust or corrode.
• This is special is made with good products and it goes further.

Best For Very Good Quality: Rds Mfg Inc Diesel Bed Tank

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Compared with other tanks in this category, the Rds Mfg Inc Diesel Bed Tank has a convenient design. The rds mfg inc diesel bed tank functions well, it does the job and has low style. To "pressurize" the fuel tank toolbox combo is a 41. Moreover, it is the user's responsibility to comply with local, state and federal requirements pertaining to safe transportation, loading and discharging of tank contents.

The tank comes with a built-in toolbox and 100 percent aluminum diamond tread plate construction. Further, it is great for tank size, can be used on/ for lower cost and it is perfect for high quality. Lastly, the rds mfg inc diesel bed tank looks great and has a perfect design.

Most buyers agree that the tank will take up 15" total space before your 5th wheel hitches in the bed. Moreover, they strongly agree that the tank is but the tool box portion is smaller than a normal one. In addition, they strongly agree that the auxiliary tank will automatically fill your existing fuel tank when the fuel is lowers.

• This is not made to attach a pump.
• This toolbox / fuel tank does not include a transfer pump.
• This has a reinforced lid and it is made with fully welded seams.
• This worked fine and it came with part number.

Best For Gas: Dee Zee Main Tank

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The Dee Zee line of tanks comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Dee Zee Main Tank is built with full weld stability baffles, It is straight forward and has a good design. Connector kits to feed diesel directly into your fuel line are sold separately. And, the tank is constructed of heavy gauge brite-tread aluminum.

Most importantly, the dee zee main tank has a drain plug, It fits great and it fits well.

Most buyers opine that the tank looks great when installed, but they only gave it four stars because the fuel transfer rate is very slow. Also, a few say that the tank will vary, but at least 6 inches higher than the top height of the tank. Moreover, they say that the tank is designed for gas but should say so. In conclusion, the tone of buyers is very positive and we believe that the tank suits the purpose.

• Certified auxiliary fuel transfer tank meets federal dot requirements.
• This has an extra hole on top.
• Connect to oem fuel line to transfer diesel fuel.
• This does have baffles, and on the f350 the filler neck is above the rails.

Best With Fuel Pump: Am-Tank Diesel Bed Tank

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If you want nothing but a tank that is reliable, this Am-Tank Diesel Bed Tank is certainly a wise investment. Compared with other tanks in this category, the am-tank diesel bed tank has a convenient design. The tank is easy to maintain and fits perfectly for your regular use.

Most customers found that the tank can be used in a farming setting to fuel equipment. In addition, a few say that the tank includes a pump, 4 to 6’ of discharge hose and a trigger nozzle.

• Good brand reputation.
• New and hot releases.

Best For Long Service Life: Vevor Diesel Bed Tank

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Next on the list, we've got yet another tank that manages to win our hearts. It's the Vevor Diesel Bed Tank and it's widely considered as the tank that has the most suitable features. The vevor dieselbed tank is for secure delivery and it is best for automatic dispensing nozzle. Secure & easy movementequipped with 2 grooves and forklift pockets, you can easily and securely move the tank. All these designs will support an efficient and secure work12 volt transfer pump the 12.

Lastly, the vevor diesel bedtank is designed with premium materials and it is easy to transport.

"There is a filter inside the fuel tank that can filter out large particles. " - says, one customer. In conclusion, most buyers found the tank suits best, and no one questions it.

• This is a leading brand that specializes in equipment and tools.
• This is great for flow rate, works well and it is good for item size.
• These high-quality materials ensure a long service life.
• Premium structurethe diesel fuel tank has a premium structure.

Best With Installation Instructions: Transfer Flow Diesel Bed Tank

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The Transfer Flow Diesel Bed Tank's material feels more premium than its price would suggest. Further, this includes two internal baffles to reduce fuel sloshing, and fully-welded mounting brackets. Make sure this fits by entering your model number. Above all, the transfer flow diesel bed tank comes with fuel cap, bolts, nuts, washers, bed shims, and installation instructions.

With no doubts, this tank passed the test and had very satisfied buyers eager to share their experience.

• Powder coated black for durable finish + 6-year, unlimited mile warranty.
• Refueling tanks to fuel diesel vehicles and equipment.
• Built from 14-gauge u.s. aluminized steel for durability.
• Comes with fuel cap, mounting kit, and instructions.

Best For Light Weight: Dee Zee Diesel Bed Tank

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The Dee Zee Diesel Bed Tank should be able to handle its purposes and duties with ease. The dee zee diesel bed tank works well and has a good design. The Manufacturer says: We recognize your need for durable, functional, and stylish products to keep up with your hectic pace. And, the tank includes a coupler for venting and also features .125 brite-tread aluminum.

Finally, the dee zee diesel bed tank is made with good product and it is suitable for light weight.

Most buyers found that the tank is meant for an auxiliary fuel pump installed on top. And, a few also found that the tank is rated for diesel or bio diesel as an auxiliary. Overall, buyers found this to be one of the best tanks for daily purposes.

• This is guaranteed to come with dents.
• This has been a staple brand in the truck accessory market since 1977.
• Add convenient storage bolted onto a transfer tank.
• Overall: l: 54" x w: 18" x h: 16".