
The Mercedes Sprinter is a large vehicle, and its fuel tank capacity varies depending on the model year. For instance, the 2019-2022 Mercedes Sprinter 144 has a 24-gallon fuel tank, while an upgraded 47-gallon tank is also available. Similarly, the 2023+ Mercedes Sprinter is typically equipped with a 24-gallon tank, but an extended-range 45-gallon fuel tank option is offered as well. These larger fuel tanks provide almost double the fuel capacity, allowing for longer journeys without frequent fuel stops.
| Characteristics | Values |
|---|---|
| Fuel tank capacity | 24 gallons (stock), 45 gallons (extended range), 47 gallons (extended range) |
| Fuel tank material | ¼” thick crosslink polyethylene |
| Fuel gauge accuracy with extended range tank | Remains accurate; the gauge will stay on full for the first 5-7 gallons, then continue to move as normal |
| Distance to empty with extended range tank | Calculated based on the stock fuel capacity; for example, at 20 mpg and a full 45/47-gallon tank, the vehicle will show 480 miles to empty |
| Installation | Can be installed in just a few hours; mounts in the stock location with an additional rear strap |
| Compatibility | Varies by model year and wheelbase; some tanks are not compatible with 170" Crew Vans or 144" Dual Rear Wheel Vans |
| Price | $1,549.00 USD |
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What You'll Learn

Standard Mercedes Sprinter fuel tank capacity
The standard fuel tank capacity of a Mercedes Sprinter depends on the model year of the vehicle. For instance, the 2019-2022 Mercedes Sprinter 144" and 170" Wheelbase models have a standard fuel tank capacity of 24 gallons. This can be replaced with a 47-gallon tank, which is available from S&B.
Similarly, the 2023+ Mercedes Sprinter 144" and 170" Wheelbase models have a standard fuel tank capacity of 24 gallons, which can be upgraded to a 45-gallon tank, also provided by S&B.
The S&B replacement tanks are made from high-density crosslink polyethylene, which offers several advantages over metal fuel tanks. These tanks will not rust, corrode, or de-laminate, and they do not suffer from condensation issues. Additionally, the S&B replacement tanks are designed to fit in the stock location, with an additional rear strap, and they come with all the necessary components for installation.
It is worth noting that the fuel gauge on the Mercedes Sprinter may not accurately reflect the distance to empty when using a larger-capacity fuel tank. While the fuel gauge will function correctly, the distance to empty will still be calculated based on the original, smaller fuel tank capacity.
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Extended-range fuel tanks for Mercedes Sprinter
The standard fuel tank in a Mercedes Sprinter is 24 gallons, which can lead to frequent fuel stops. To overcome this issue, extended-range fuel tanks are available, offering almost double the fuel capacity at 45 or 47 gallons.
S&B 45 or 47 Gallon Extended Range Fuel Tank
This tank is a high-capacity direct replacement for the OEM fuel tank, providing almost double the fuel capacity and reducing the need for frequent fuel stops. It is made from high-density crosslink polyethylene, which offers advantages over metal fuel tanks as it will not rust, corrode, or delaminate. It also does not suffer from condensation issues and is more resilient. The tank is pressure-tested before leaving the factory and can be installed in just a few hours without the need for a mechanic. It comes with all the components to remove the original 24-gallon tank and replace it with the 45 or 47-gallon tank, which mounts in the stock location with an additional rear strap.
Owl Vans 45 or 47 Gallon Long-Range Fuel Tank
This high-capacity replacement tank upgrades the stock 26-gallon tank and almost doubles the fuel capacity. It is manufactured from a higher grade of polyethylene than the factory tank, making it even more rugged. It bolts into the same location as the factory tank and includes an aux port for the heating system.
Compatibility
The S&B 45 or 47-gallon extended-range fuel tanks are compatible with 2019-2022 Mercedes Sprinter 144" and 170" Wheelbase models. They are also compatible with 2023+ models, except for 170" Crew Vans or 144" Dual Rear Wheel Vans.
The Owl Vans 45 or 47-gallon long-range fuel tank is also compatible with the Mercedes Sprinter, although the specific models are not mentioned.
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Fuel tank replacement options
The fuel tank capacity of a Mercedes Sprinter depends on the model year and variant. For example, the 2019-2022 Mercedes Sprinter 144" and 170" Wheelbase models have a 24-gallon fuel tank. Meanwhile, some sources indicate that certain Mercedes Sprinter variants have a 26-gallon stock fuel tank, which is considered undersized by some users.
If you're looking to upgrade your Mercedes Sprinter's fuel tank capacity, there are several replacement options available:
- S&B 45-Gallon Extended Range Fuel Tank: This option is suitable for the 2023+ Mercedes Sprinter (10-1031) and will not fit 170" Crew Vans or 144" Dual Rear Wheel Vans. It provides almost double the fuel capacity, allowing you to travel further without frequent fuel stops. The tank is made of high-quality high-density crosslink polyethylene, which offers advantages over metal fuel tanks as it won't rust, corrode, or delaminate. It also doesn't have condensation issues and is backed by a lifetime warranty. The installation process is seamless and can be done in just a few hours without the need for complex modifications.
- S&B 47-Gallon Replacement Fuel Tank: This option is suitable for the 2019-2022 Mercedes Sprinter 144" and 170" Wheelbase models. It replaces your 24-gallon tank with a 47-gallon tank, increasing your fuel capacity significantly. The tank mounts in the stock location with an additional rear strap and occupies space forward and rearward of the original tank. The S&B tank design ensures that your fuel gauge remains accurate, and it is also built to last with a lifetime warranty.
- Sprinter Long Range Fuel Tank (47/45 Gal): This replacement tank is suitable for Mercedes Sprinters with a stock 26-gallon tank. It bolts right into the same location inside the frame rails and offers a higher grade of polyethylene construction, making it even more rugged than the factory tank.
- Mercedes Sprinter Van 20-Gallon Auxiliary Fuel Tank Kit: This option is suitable for the 2010-2025 Mercedes-Benz Sprinter Cargo Van. It adds 20 extra gallons to your fuel system, reducing refueling stops and increasing travel efficiency. The tank is custom-designed to fit outside the frame rail on the driver's side, ensuring a seamless fit without sacrificing cargo space. It is built with corrosion-resistant materials, ensuring durability and long-term reliability. The installation process is easy, with no complex modifications required, and it includes all the necessary hoses, clamps, and mounting bolts.
- Aero Tanks: Aero Tanks is a brand that offers high-quality, durable fuel tanks designed to extend the range and capabilities of vehicles. While the exact capacity is not mentioned, they are known for their precision engineering and robust materials, making them a reliable choice for adventurers seeking to maximize their journey potential and enjoy off-the-grid experiences.
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Fuel gauge accuracy
The fuel tank capacity of a Mercedes Sprinter varies depending on the model year and wheelbase. For instance, the fuel tank capacity of the 2019-2022 Mercedes Sprinter 144" and 170" Wheelbase models is 24 gallons. However, S&B offers a 47-gallon replacement fuel tank for these models, nearly doubling the fuel capacity. Similarly, the 2023+ Mercedes Sprinter models come with a standard 24-gallon fuel tank, but S&B offers a 45-gallon extended-range fuel tank as an upgrade.
When upgrading to a larger fuel tank, it is essential to consider the fuel gauge accuracy. S&B has designed their replacement tanks to ensure the fuel gauge remains accurate, even with the increased fuel capacity. Initially, the gauge will remain on full for the first 5-7 gallons, after which it will continue to move as normal. However, the distance to empty will still be calculated based on the original, smaller fuel capacity. For example, with a 45 or 47-gallon tank at 20mpg, the actual distance to empty is 940 miles, but the vehicle's display will show only 480 miles.
The S&B replacement fuel tanks are designed to mount in the stock location, occupying additional space forward and rearward of the original tank without protruding towards the driver's side. They are constructed from high-quality, high-density crosslink polyethylene, which offers several advantages over metal fuel tanks. Polyethylene tanks are more durable, resistant to rust and corrosion, and less prone to condensation issues. Additionally, S&B conducts pressure tests on every tank before they leave the factory, ensuring their resilience and longevity.
Upgrading to a larger fuel tank, such as the S&B options, can significantly enhance the driving experience of a Mercedes Sprinter by reducing the frequency of fuel stops. This is especially beneficial for adventure vans or long-distance travel, where maximising time on the road and minimising interruptions are crucial. With the S&B replacement tanks, drivers can enjoy the benefits of increased fuel capacity while still retaining accurate fuel gauge readings, aside from the distance to empty calculation, which is based on the stock fuel capacity.
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Fuel tank installation
The fuel tank of a Mercedes Sprinter Van typically has a capacity of 24 gallons. However, some models have a 26-gallon stock fuel tank.
Upgrading your Mercedes Sprinter Van with a larger fuel tank can significantly enhance your driving experience by reducing the need for frequent refuelling stops. Here is a step-by-step guide on how to install a larger fuel tank in your van:
- Prepare the Vehicle: Park your van on a level surface and engage the parking brake. Ensure that the engine is turned off and the keys are removed from the ignition.
- Drain the Existing Fuel Tank: Before removing the original fuel tank, you will need to drain any remaining fuel. Use a siphon pump or a fuel transfer pump to safely transfer the fuel to an approved storage container.
- Remove the Original Fuel Tank: Locate the fuel tank and disconnect all the hoses, clamps, and electrical connections attached to it. Carefully lower and remove the original fuel tank from the vehicle, taking note of its orientation and any mounting hardware.
- Prepare the New Fuel Tank: Take your new fuel tank, which should be compatible with your Mercedes Sprinter model. Ensure that it is clean and free of any debris. If the new tank comes with additional components, such as mounting straps or hardware, have them ready for installation.
- Install the New Fuel Tank: Position the new fuel tank in the same location as the original tank, ensuring it sits securely in place. Secure the tank using the provided mounting hardware, such as bolts or straps. Ensure that the tank is firmly attached to the vehicle's frame or designated mounting points.
- Reconnect Fuel System Components: Reconnect all the fuel lines, hoses, clamps, and electrical connections to the new fuel tank. Ensure that all connections are secure and tight to prevent leaks.
- Refill and Test: Refill the new fuel tank with the appropriate fuel type for your vehicle. Start the engine and check for any leaks in the fuel system. Ensure that the fuel gauge is functioning correctly and accurately reflects the new tank's capacity.
- Post-Installation Checks: After the initial test, drive your van and monitor its performance. Pay attention to any unusual behaviour, such as changes in fuel efficiency or engine performance. Ensure that the new fuel tank is secure and does not interfere with any other vehicle components.
By following these steps, you can successfully upgrade the fuel tank in your Mercedes Sprinter Van, increasing your driving range and reducing the inconvenience of frequent refuelling stops. Remember to consult a professional mechanic or a trusted workshop if you require further guidance or assistance during the installation process.
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Frequently asked questions
The fuel tank of a Mercedes Sprinter typically holds 24 gallons of fuel. However, some models have a 26-gallon tank.
Yes, there are larger fuel tanks available for the Mercedes Sprinter as aftermarket parts. These larger fuel tanks typically hold 45 or 47 gallons of fuel, providing almost double the fuel capacity of the stock tank.
Upgrading to a larger fuel tank can provide several benefits, including increased fuel capacity, reduced fuel stops, and improved range. Additionally, larger fuel tanks made from crosslink polyethylene offer advantages over metal fuel tanks, including resistance to rust, corrosion, and delamination.

















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