
Peterbilt fuel tanks are designed to keep semi-trucks running efficiently and reliably. They come in a variety of shapes and sizes, including cylindrical, rectangular, and D-shaped tanks, and can be customized to meet specific requirements. When choosing a fuel tank, factors such as material quality, cost, and durability should be considered to ensure the tank meets or exceeds the original manufacturer's specifications. Additionally, it is important to prioritize fast delivery, ease of replacement, and longevity when replacing a fuel tank.
| Characteristics | Values |
|---|---|
| Material | Aluminum |
| Cost | Cost-effective |
| Tank capacity | 80, 90, 100, 110, 120, 125, 135, 150, 200 gallons |
| Tank diameters | 23", 26", 29" |
| Tank length | 41", 48", 57", 60", 62", 85", 90" |
| Tank shape | Cylindrical, rectangular, "D" shaped, tapered bottom |
| Tank type | Alttec, cylinder, rectangle, OEM |
| Tank components | Caps, fittings and sensors, straps and brackets |
| Tank accessories | Locking fuel caps, fuel heaters, visual gauges, sending units |
| Tank features | Peterbilt-style neck, flip-top fuel cap |
| Tank warranty | 2-year warranty |
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What You'll Learn

Fuel tank materials
Fuel tanks are used to store flammable gasoline and fuel and are used in nearly all automobiles and aircraft. When buying a fuel tank, it is important to consider the material it is made of. Material thickness plays a big part in the durability of a fuel tank. Thicker material is nearly always better when it comes to fuel tank material. This is because the additional material can be thought of as sacrificial: if the tank begins to corrode, the extra thickness will give the owner more time to discover and fix the problem before the tank begins to leak.
The most common materials used for fuel tanks are aluminum, steel, and stainless steel. Aluminum is the most common material for marine fuel tanks. Aluminum tanks are susceptible to corrosion, so manufacturers often offer to coat their tanks with corrosion-inhibiting epoxies. Aluminum tanks should not be placed in contact with hydroscopic (water-absorbing) substances such as carpeting, acoustic insulation, or wood. Steel is another common material for fuel tanks. Steel is exceptionally strong and can be built to fit the available accommodations. Steel is also inexpensive, so steel tanks are often made of thicker plates to account for sacrificial rusting. Stainless steel is another option for fuel tanks, although it is less commonly used than aluminum and steel.
When choosing a fuel tank, it is important to consider the environment in which the tank will be used. For example, in coastal areas, road salt and sea air are common enemies of metal fuel tanks. In these environments, aluminum may be a better choice than steel, as steel is more susceptible to rust. It is also important to consider the thickness of the material. Thicker materials are generally more durable and will last longer. However, thicker materials may also be more expensive.
Overall, when choosing a fuel tank, it is important to consider the material it is made of, the thickness of the material, and the environment in which the tank will be used. By considering these factors, you can choose a fuel tank that is durable, cost-effective, and well-suited to your specific needs.
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Fuel tank shapes
Fuel tanks are essential for storing and supplying fuel to engines. They come in various shapes and sizes, and the choice of tank depends on factors such as space availability, storage requirements, and mobility needs. Here is a detailed overview of the different fuel tank shapes and their benefits:
Cube-style fuel tanks are characterised by their cubic or rectangular shape, featuring straight sides and sharp angles. They are a popular choice due to their flexibility in storage capacity and standardisation of sizes, making them easy to stack and transport. Cube-style tanks are well-suited for businesses with limited space or frequently changing fuelling needs. However, in larger volumes, the angular design of cube-style tanks may pose challenges in stress distribution and structural integrity.
Cylindrical fuel tanks, on the other hand, have a rounded or cylindrical shape, offering versatility and scalability in storage solutions. They are adaptable to various applications and industries, making them suitable for both on-site fuel storage and mobile fuelling solutions. Cylindrical tanks come in various diameters and heights, catering to diverse storage requirements. Their curved design allows for seamless stress distribution, ensuring enhanced structural integrity, even for larger volumes of fuel. However, due to their rounded shape, cylindrical tanks may require more space for installation and specialised equipment for movement, especially for larger sizes.
In addition to the cube-style and cylindrical tanks, there are other fuel tank shapes worth mentioning. Underground fuel tanks are buried beneath the surface and are commonly used for storing large quantities of fuel, such as gasoline or diesel. Above-ground tanks are also popular due to their low long-term maintenance costs and upfront expenditures. Aircraft utilise three main types of fuel tanks: integral, rigid removable, and bladder. Integral tanks are sealed areas within the aircraft structure, such as the "wet wing", and cannot be removed for service or inspection. Rigid removable tanks can be taken out for maintenance, and bladder-style tanks are handmade by craftsmen.
When considering the shape and design of a fuel tank, it is essential to evaluate factors such as space availability, storage requirements, and mobility needs. Additionally, the choice of material is crucial, with options including metal (steel or aluminium) and plastic (HDPE). The material used can impact the cost, durability, and suitability of the fuel tank for its intended purpose.
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Fuel tank capacities
Specialized tanks are also offered, including the Peterbilt 2006 and earlier 100-gallon tank, measuring 23 inches by 60 inches, and the newer 2007 model with identical capacity and dimensions. For those seeking larger capacities, Peterbilt offers the 2006 and earlier 110-gallon tank, as well as the 2007 and newer 110-gallon variant, both measuring 23 inches by 62 inches.
Aftermarket suppliers like SouthTowns Specialties provide a range of cylindrical Peterbilt tanks with diameters spanning 23 to 29 inches and lengths of up to 90 inches, accommodating capacities up to 200 gallons. They also offer rectangular, "D"-shaped, and tapered bottom (GMC-style) tanks, providing flexibility in terms of size and shape to suit various truck models.
When considering fuel tank capacity, it is worth noting that Alttec fuel tanks, offered by Chrome Shop Mafia, provide a cost-effective alternative to dealership tanks, with capacities ranging from 80 to 150 gallons. These tanks feature a Peterbilt-style neck that accepts the flip-top fuel cap, closely resembling the factory-installed tank.
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Fuel tank components
Fuel tanks are an essential component of any vehicle, and Peterbilt offers a range of options to ensure your semi-truck runs efficiently and reliably. When it comes to fuel tank components, there are several key parts that work together to store and deliver fuel to the engine. Here's a detailed breakdown of the core components of a Peterbilt fuel tank:
Fuel Tank Capacity and Design
Peterbilt fuel tanks come in various capacities to meet different needs. Common capacities include 80, 90, 100, 110, 125, 135, and 150-gallon fuel tanks. The tanks are designed to fit specific Peterbilt truck models, such as the 379, 389, 579, and the newer 589. Some tanks have centre fill designs, while others have rear fill configurations.
Fuel Tank Materials
Most Peterbilt fuel tanks are made of aluminium, which offers good resistance to corrosion, especially in coastal areas where salt from sea air can be an issue for steel tanks. The choice of material is an important consideration, as it can impact the overall cost and durability of the fuel tank.
Fuel Tank Accessories
Peterbilt fuel tanks can be customised with various accessories to enhance their functionality and appearance. These include fuel tank caps, fittings and sensors that help monitor fuel levels and performance. Straps and brackets are also available to secure the tank in place, ensuring safe transportation.
Fairings and Aerodynamics
Fairings can be added to Peterbilt fuel tanks to improve aerodynamics and enhance fuel efficiency. These fairings come in different styles, such as rounded or flatter designs, and can even be equipped with LED lights for a unique look.
Personalisation and Maintenance
Peterbilt fuel tanks can be personalised with tank covers or wraps to add a touch of colour or design. For older truck models, these accessories can also help keep the fuel tank clean and shiny. Additionally, fuel tank components like dump valves, hoses, cables, and landing gear are available to support maintenance and ensure optimal performance.
In summary, the core components of a Peterbilt fuel tank include the tank itself, made from durable materials like aluminium, along with various accessories, fairings, and customisation options to ensure efficient fuel storage and delivery for semi-trucks.
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Fuel tank costs
The cost of a fuel tank for a Peterbilt truck can vary depending on several factors, including the size, material, and brand of the tank.
Firstly, let's consider the size of the fuel tank. The capacity of Peterbilt fuel tanks can range from 65 gallons to 150 gallons or more. The larger the tank, the higher the cost is likely to be. For example, Big Rig Chrome Shop offers a range of Peterbilt fuel tanks, including a 65-gallon tank and a 125-gallon tank, with the larger option presumably costing more.
Additionally, the material of the fuel tank can impact the cost. Most Peterbilt tanks are made of aluminum, which is resistant to road salt and salt from sea air. Aluminum tanks are likely to be more expensive than steel tanks, as aluminum is generally a more costly material.
Moreover, the brand and quality of the fuel tank can also affect the price. For instance, Alttec fuel tanks are advertised as cost-effective alternatives to dealership tanks, costing 35-40% less while offering a 2-year warranty, which is uncommon for dealership tanks. On the other hand, Metal Tanks by Propower emphasizes the thickness of their tank wraps, which are 25% thicker than OEM tanks, suggesting a higher quality and potentially higher-priced product.
It's worth noting that additional features and accessories can also influence the final cost of a fuel tank. Some suppliers offer options like locking fuel caps, fuel heaters, visual gauges, and sending units, which may incur additional charges.
In summary, when considering the cost of a fuel tank for a Peterbilt truck, it's important to take into account the size, material, brand, quality, and any additional features that may impact the overall price.
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Frequently asked questions
There are various types of fuel tanks available for Peterbilt trucks, including cylindrical, rectangular, and "D"-shaped tanks. Tanks can be customized with different fittings, configurations, and quantities. Specialized tanks are also available for specific model years, such as the Peterbilt 2006 100-gallon tank and the Peterbilt 2007 100-gallon tank.
The size of the fuel tank depends on the available space and your refueling preferences. If space allows, a larger tank can reduce refueling stops. Peterbilt fuel tanks are available in a range of capacities, from 80 gallons to 200 gallons.
It is important to prioritize quality and durability when selecting a fuel tank. Consider the material and thickness of the tank, as well as any protective coatings, especially if operating in coastal areas with salt exposure. Additional features such as locking fuel caps, fuel heaters, visual gauges, and sending units can also be offered.










































