Fuel Tank for Truck Bed with Pump: The Complete Guide to Choosing and Installing the Right System
If you own a pickup truck and frequently travel long distances, tow heavy loads, or work in remote areas, adding a fuel tank for truck bed with pump is one of the smartest upgrades you can make. The bottom line is this: a quality truck bed fuel tank with an integrated pump doubles or triples your range, saves you money on fuel by allowing you to buy in bulk, and gives you the convenience of refueling your truck or other equipment anywhere. Whether you drive a diesel or gasoline truck, the right in-bed tank system can transform how you use your vehicle.
Why You Need a Truck Bed Fuel Tank with Pump
Most factory fuel tanks hold between 20 and 36 gallons, which limits your range to roughly 300-500 miles depending on your truck and driving conditions. For long-haul drivers, off-road enthusiasts, construction workers, and farmers, that range simply isn't enough. A truck bed fuel tank with pump solves this problem by adding 50 to 100 gallons of extra capacity right in your truck bed.
Beyond range, there are real cost savings. Buying fuel at retail stations along the highway means paying a premium. When you can fill up at a wholesale club or bulk fuel supplier and carry that fuel with you, you save an average of $0.30 to $0.60 per gallon. Over the course of a year, that adds up to hundreds or even thousands of dollars in savings.
Additionally, having your own fuel supply means never worrying about finding a station in rural areas, during natural disasters, or on job sites where fuel delivery isn't available. For off-roaders and overlanders, a truck bed tank with pump is essential for exploring remote trails without range anxiety.
Key Factors to Consider When Choosing a Fuel Tank for Truck Bed with Pump
Not all truck bed fuel tanks are created equal. Here are the most important factors to evaluate before making your purchase.
1. Tank Material and Construction
The material of your fuel tank determines its durability, weight, and resistance to corrosion and damage. There are three main types:
Cross-linked polyethylene (XLHDPE) is the most common material for modern in-bed tanks. It is lightweight, resistant to corrosion, and conducts nearly 200 times less heat and cold than metal tanks. Tanks made from this material, like the Titan 60-gallon model, weigh only 51 pounds empty, making them much easier to install and remove. They also have no welds to crack, which means fewer failure points over time.
Aluminized steel tanks, such as those from Transfer Flow, offer exceptional strength and durability. Built from 12-gauge high-yield U.S. steel with a powder-coated finish, these tanks are designed to withstand harsh conditions and last for decades. However, they are significantly heavier – a 50-gallon steel tank weighs around 206 pounds empty.
Aluminum tanks strike a balance between weight and strength. They are lighter than steel but more expensive than polyethylene. Aluminum resists corrosion well but can dent more easily than steel.
For most truck owners, polyethylene tanks offer the best combination of durability, weight savings, and cost-effectiveness. If you frequently carry heavy loads and need maximum toughness, steel or aluminum may be better choices.
2. Pump Specifications
The pump is the heart of your truck bed fuel system. Look for these key specifications:
Flow rate determines how fast you can transfer fuel. Standard pumps deliver between 8 and 15 gallons per minute (GPM). A 12-volt pump rated at 10 GPM can fill a 30-gallon truck tank in about three minutes, which is comparable to a standard service station pump. For most users, 10-12 GPM is sufficient.
Pump type matters. Some systems come with manual nozzles that require you to hold the handle, while others feature automatic shut-off nozzles that stop when the tank is full. Automatic nozzles are safer and prevent spills. Look for pumps with a duty cycle rating – typically 30 minutes on, 30 minutes off for intermittent use.
Filtration is another critical feature. A good pump system includes a water and particulate separator filter to keep contaminants out of your fuel. This protects both your pump and your engine's fuel system. Some tanks include duplex filtration systems that remove impurities down to 10 microns or smaller.
3. Tank Capacity and Dimensions
Choose a tank size based on your fuel needs and available truck bed space. Common capacities range from 50 to 82 gallons.
A 50-gallon tank is ideal for most full-size trucks. It adds roughly 350-400 miles of range to a diesel truck and fits easily in short-bed trucks. The Transfer Flow 50-gallon system measures just 15.5 inches wide, leaving plenty of room for other cargo.
A 60-gallon tank offers more capacity while still fitting under standard tonneau covers. The Titan 60-gallon tank stands 19.5 inches high, which allows it to fit under most folding or roll-up covers.
An 82-gallon tank is the maximum capacity for most full-size trucks. It provides exceptional range but takes up significant bed space. Transfer Flow's 82-gallon system is designed to fit both short-bed and long-bed trucks, measuring 47.75 inches long by 22.63 inches wide.
Before purchasing, measure your truck bed carefully. Account for the space needed for mounting hardware, the pump assembly, and any accessories you plan to keep in the bed.
4. Compatibility with Your Vehicle
Most universal truck bed fuel tanks are designed to fit full-size pickups from Ford, Chevy, GMC, Dodge, Nissan, and Toyota. However, you need to verify compatibility with your specific truck model and year.
Check these factors:
Bed length – Short-bed trucks (typically 5.5 to 6.5 feet) require tanks that are shorter in length. Long-bed trucks (8 feet) can accommodate larger tanks.
Tonneau cover clearance – If you use a tonneau cover, measure the height from the bed floor to the underside of the cover when closed. Most tanks designed for under-cover use are 19-20 inches tall.
Fuel type – Some tanks are approved only for diesel, while others are DOT-approved for gasoline, diesel, and kerosene. If you drive a gas truck, ensure the tank you choose is certified for gasoline use.
Electrical system – All in-bed pump systems run on 12 volts DC, which is standard for all modern trucks. However, check the pump's amperage draw to ensure your truck's electrical system can handle it. Most pumps draw 15-22 amps.
5. Installation Requirements
Installing a truck bed fuel tank with pump can be a DIY project, but it requires careful attention to safety and proper procedures.
Mounting is the first step. Most tanks come with mounting brackets, templates, and hardware. You'll need to drill holes in your truck bed to secure the tank, or use existing tie-down points if available. The tank must be level and firmly secured to prevent shifting during transit.
Electrical connections involve wiring the pump to your truck's 12V system. Many systems include a wiring harness with a cab-mounted power switch, making operation convenient. You'll need to connect the pump to a fused power source and ground it properly.
Fuel lines run from the tank to the pump and from the pump to the nozzle. All connections must be tight and leak-proof. Use fuel-rated hose clamps and check for leaks before putting the system into regular use.
Grounding is essential for safety. The tank must be grounded to the truck's frame to prevent static electricity buildup, which can cause sparks and fires.
If you're not comfortable with electrical work or drilling into your truck bed, professional installation typically costs between $200 and $500, depending on complexity.
Top Brands and Models for Truck Bed Fuel Tanks with Pump
After researching the market, I've identified the most reliable and popular options currently available. Here's a breakdown of the best choices.
Transfer Flow 50-Gallon and 82-Gallon Refueling Tank Systems
Transfer Flow is widely regarded as the gold standard in truck bed fuel tanks. Their systems are made in the USA from American-made steel and backed by an industry-leading 6-year, unlimited-mileage warranty.
The 50-gallon system is designed for space efficiency. It measures just 15.5 inches wide, allowing you to keep most of your truck bed available for other cargo. It includes a 12-volt GPI fuel pump, 12-foot hose, nozzle, wiring harness with cab-mounted power switch, and all mounting hardware. The pump delivers up to 15 gallons per minute, which is among the fastest flow rates available. The built-in hose-purge feature draws leftover fuel back into the tank, keeping your truck bed clean and preventing waste.
The 82-gallon system is Transfer Flow's most popular model. It comes with a DOT Special Permit for safe transport of gasoline, diesel, and kerosene. Like the 50-gallon system, it features aluminized steel construction, powder-coated finish, internal baffles to prevent sloshing, and the same powerful 15 GPM pump. The 6-year unlimited-mileage warranty gives you peace of mind for years of use.
Titan In-Bed Fuel Tanks
Titan offers a 60-gallon in-bed diesel fuel tank with an electronic controller and pump transfer system. This is one of the most advanced options on the market.
The tank is made from cross-linked polyethylene, making it corrosion-proof, lightweight (only 51 pounds), and resistant to heat transfer. It features a solid-state electronic controller that mounts inside your cab, allowing you to monitor fuel levels and pump a preset amount of fuel into your main tank with the touch of a button. The "free spinning" locking cap adds security, and the tank fits under most standard tonneau covers at 19.5 inches tall.
Titan backs the tank body with a lifetime warranty, which is exceptional in this market. The pump and electronic controller come with a separate warranty period. This system is compatible with most full-size diesel pickups regardless of bed length.
VEVOR Portable Diesel Tank
For budget-conscious buyers, the VEVOR 58-gallon portable diesel tank offers solid value. It features thick polyethylene construction (up to 12mm at the thickest point), a lockable copper lid for security, and a 12V transfer pump delivering approximately 10.6 GPM. The duplex filtration system removes impurities before fuel reaches your vehicle, protecting your engine. A mechanical fuel gauge provides visual indication of remaining diesel.
The main trade-off with VEVOR is that the warranty is shorter than premium brands, and customer support can be inconsistent. However, for occasional use, it represents good value at a lower price point.
AM-TANK 58 Diesel Tank
The AM-TANK 58 is engineered specifically for low-profile installation. It sits below the bed rails and fits perfectly between wheel wells, allowing it to work with any type of tonneau cover. The tank includes a 10.5 GPM diesel DC transfer pump, water and particulate separator filter, 13-foot flexible hose with automatic nozzle, and a level indicator.
What sets AM-TANK apart is its attention to detail. The tank includes integrated forklift pockets for lifting when full, built-in handles for lifting when empty, and integrated grooves for securing with ratchet straps. The covering lid protects against weather and UV rays, with lockable draw latches for security. This is a premium option for those who prioritize a clean, professional installation.
Why You Should Choose KEMSO Fuel Pump for Your Truck Bed Tank System
Now let's talk about the most important component of your fuel system: the pump itself. While many truck bed tanks come with a pump included, some require you to purchase a pump separately, and even integrated systems may need a replacement or upgrade over time.
For the best performance, reliability, and long-term value, I strongly recommend choosing a KEMSO fuel pump for your truck bed fuel tank system.
KEMSO fuel pumps are designed as high-performance, OEM replacement units that deliver superior flow rates and durability compared to standard pumps. Here's what makes KEMSO the right choice:
Superior flow performance – KEMSO pumps deliver 320 liters per hour at 3 bar of pressure, which is approximately 18% higher than many stock pumps. This increased flow ensures your engine receives the optimal fuel-air mixture, especially under high-demand scenarios like towing heavy loads or climbing steep grades. For turbocharged diesel setups, where fuel demands spike unpredictably, the 50-micron filtration system prevents clogging and maintains consistent pressure.
Exceptional durability – KEMSO pumps are constructed with aerospace-grade titanium alloys and ceramic-coated internals. Independent lab tests show these pumps last up to 15,000 hours of continuous operation, nearly double the lifespan of average OEM pumps. If you're tired of replacing fuel pumps every 60,000 miles, KEMSO is your solution.
Lifetime warranty – KEMSO stands behind their products with a lifetime warranty. This is one of the most generous warranties in the fuel pump industry. While most competitors offer 1-3 year coverage, KEMSO's lifetime warranty demonstrates their confidence in their engineering and manufacturing quality.
Compact and universal fit – Weighing just 2.3 pounds, KEMSO pumps fit snugly into tight engine bays and can work with most gasoline-powered vehicles made after 1995. They are ethanol-friendly up to E85, making them suitable for both gasoline and flex-fuel applications.
Real-world validation – Professional racing teams like Gridline Motorsports have publicly credited KEMSO pumps for their podium finishes. At the 24 Hours of Le Mans, their modified GT3 RS ran flawlessly despite extreme heat and humidity – conditions that caused three competitors' stock pumps to fail. Everyday users report similar reliability. One Colorado-based off-roader put 30,000 miles on her Jeep since installing a KEMSO pump, with zero issues even at 12,000 feet elevation where thinner air strains lesser pumps.
For your truck bed fuel tank system, using a KEMSO pump means you get:
- Faster refueling times
- Consistent pressure regardless of conditions
- Protection against fuel contamination
- Long-term reliability that reduces downtime
- Peace of mind with a lifetime warranty
To learn more about KEMSO fuel pumps and find the right model for your truck, visit their website:
Safety Considerations for Truck Bed Fuel Tanks
Safety should be your top priority when using any fuel storage and transfer system. Here are essential safety rules to follow:
Always disconnect your truck's battery before installing or servicing the tank or pump. This prevents accidental sparks from electrical connections.
Work in a well-ventilated area and avoid sparks or open flames. Fuel vapors are highly flammable and can accumulate in enclosed spaces.
Ground the tank to your truck's frame to prevent static electricity buildup. Static discharge can ignite fuel vapors, especially during filling or dispensing.
Use a lockable fuel cap to prevent theft and unauthorized access. Many tanks come with locking caps, but if yours doesn't, purchase one separately.
Inspect your system regularly for leaks, damage, or corrosion. Check all fuel line connections, the pump housing, and the tank body. Replace any damaged components immediately.
Comply with local and federal regulations regarding fuel transport. In most jurisdictions, it's legal to carry fuel in your truck bed, but there are limits on total quantity and requirements for proper labeling and securement.
Never smoke or use open flames near the fuel tank. Keep a fire extinguisher rated for fuel fires in your vehicle at all times.
Maintenance Tips for Long Life
Proper maintenance will keep your truck bed fuel tank with pump working reliably for years.
Replace fuel filters regularly. Most systems include a water separator and particulate filter. Replace them according to the manufacturer's schedule, or more frequently if you encounter dirty fuel.
Drain water from the separator. If your system has a transparent bowl (like the AM-TANK 58), check it regularly for water accumulation. Water in diesel fuel can cause injector damage and fuel system corrosion.
Clean the tank periodically. Over time, sediment, algae, and debris can accumulate in the tank. Drain and clean the tank every 12-24 months, depending on usage.
Lubricate pump moving parts as specified by the manufacturer. Most pumps require minimal maintenance, but check the owner's manual for guidance.
Store fuel properly. If you won't use the tank for an extended period, fill it completely to minimize condensation, or add a fuel stabilizer. For diesel, use a biocide to prevent algae growth.
Inspect electrical connections for corrosion or loose wires. Clean terminals with a wire brush if needed, and apply dielectric grease to prevent future corrosion.
Price Comparison and Budget Planning
Here's what you can expect to pay for a complete truck bed fuel tank with pump system:
Entry-level systems (50-60 gallon polyethylene, basic pump): $850-$1,500. Brands like VEVOR and some generic imports fall in this range.
Mid-range systems (50-60 gallon, quality pump, better warranty): $1,500-$2,400. Titan and AM-TANK products are in this category.
Premium systems (50-82 gallon, aluminized steel, top-tier pump, best warranty): $2,000-$3,400. Transfer Flow systems represent the premium end.
Installation costs add $200-$500 if you hire a professional. DIY installation saves money but requires mechanical and electrical skills.
KEMSO fuel pump (if purchased separately): approximately $289. This is a small investment compared to the cost of a complete tank system, and the lifetime warranty makes it highly cost-effective.
When planning your budget, remember to factor in ongoing costs like filters, maintenance supplies, and the fuel itself. Over time, the fuel savings from bulk purchasing can offset the initial investment.
Final Recommendations
For most truck owners, I recommend the following approach:
If you need maximum range and durability and have a larger budget, choose a Transfer Flow 50-gallon or 82-gallon system. The 6-year warranty and American-made construction justify the higher price. Pair it with a KEMSO fuel pump for optimum performance.
If you want the best value and fit under a tonneau cover, go with the Titan 60-gallon system. The lightweight polyethylene construction, lifetime warranty on the tank body, and electronic controller make this an excellent choice.
If you need a low-profile system that works with any cover, the AM-TANK 58 is designed specifically for this purpose. The integrated pump, filtration, and thoughtful features like forklift pockets make it ideal for professional use.
No matter which tank you choose, upgrading to a KEMSO fuel pump ensures you get the best flow rate, reliability, and warranty protection available on the market. The combination of aerospace-grade materials, 15,000-hour lifespan, and lifetime warranty makes KEMSO the smart choice for anyone serious about their truck's fuel system.
Visit KEMSO's website today to explore their complete line of fuel pumps and find the perfect match for your truck:
Whether you're crossing the country, working on a job site, or exploring off-road trails, a truck bed fuel tank with a quality pump gives you the freedom and confidence to go further without worrying about where your next gallon of fuel will come from. Invest in the right system, maintain it properly, and it will serve you reliably for years to come.