Mercedes Mullins
Harley-Davidson motorcycles have used fuel tanks of varying sizes, and some owners opt to modify their bikes with larger capacity tanks. While some older models like the WRs from as early as 1939 had 5-gallon tanks, known as Daytona tanks, modern Harley motorcycles typically have smaller fuel tanks. Owners of more recent models, such as the 2014 Ultra, 2016 VStrom, and 2007 Road King, have mentioned fuel tanks ranging from 4.6 to 6 gallons. However, some Harley enthusiasts prefer larger fuel tanks for long-distance riding without frequent refuelling stops. To address this, Harley-Davidson introduced a 5-gallon tank as an option for certain models, such as the 2018 Softail, which originally came with a 3.6-gallon tank. Installing a larger fuel tank may require modifications to the fuel pump and sender, as well as adjustments to the instrument cluster.
| Characteristics | Values |
|---|---|
| Harley Davidson fuel tank capacity | 2.1 gallon, 2.2 gallon, 2.4 gallon, 2.5 gallon, 3.2 gallon, 3.5 gallon, 3.6 gallon, 3.7 gallon, 4 gallon, 4.4 gallon, 4.5 gallon, 4.7 gallon, 5 gallon, 5.1 gallon, 5.2 gallon, 5.3 gallon, 6 gallon |
| Harley Davidson fuel tank models | V-Twin Mfg. Mini Sporty, V-Twin Mfg. Standard, V-Twin Mfg. Replica King Tank, V-Twin Mfg. Prism, V-Twin Mfg. King, V-Twin Mfg. Stretched Image, V-Twin Mfg. Bobbed, V-Twin Mfg. Roadster Tank, V-Twin Mfg. Stretched Stock Style, V-Twin Mfg. Reproduction Stock Type, V-Twin Mfg. Bobbed Tank Set, V-Twin Mfg. Fat Bob Gas Tank, V-Twin Mfg. E-Z Bob Gas Tank, V-Twin Mfg. Replica King Tank, V-Twin Mfg. Chopper Axed, Drag Specialties Diamond Gas Tank, V-Twin Mfg. E-Z Bob Tank Kit, V-Twin Mfg. 45" Tank Set, V-Twin Mfg. 45 Gas and Oil Tank Set, V-Twin Mfg. 3 1/2 Gallon Bobbed Tank Set, V-Twin Mfg. Bobbed Tank Kit, V-Twin Mfg. Fat Bob Gas Tank, V-Twin Mfg. 3.5 Gallon Handshift Fatbob Tank Set, V-Twin Mfg. Stretched Chopper, V-Twin Mfg. 5.1 Gallon Stock Style Tank, V-Twin Mfg. 5.1 Gallon Bobbed Tank, V-Twin Mfg. Fat Bob, V-Twin Mfg. Breakout, V-Twin Mfg. Street Bob, V-Twin Mfg. Softail, V-Twin Mfg. FXDR, V-Twin Mfg. Sport Glide, V-Twin Mfg. Heritage, V-Twin Mfg. Street Bob, V-Twin Mfg. Softail, V-Twin Mfg. Low Rider, WG, Ultra, Sporty, Slim |
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What You'll Learn
Harley-Davidson fuel tank capacities vary
Some Harley-Davidson models have smaller fuel tanks, such as the 3.6-gallon tank found on certain 2018 Softail models. Owners of these models sometimes opt to modify their motorcycles by replacing the original tank with a larger 5-gallon option, which requires additional modifications to the fuel pump and instrument cluster.
The fuel tank capacity directly impacts the motorcycle's range, with larger tanks providing greater distances between refuelling stops. For instance, the 5.3-gallon tank of the 2016 V-Strom model allows for approximately 200 to 230 miles of travel before refuelling, while the 4.7-gallon tank of the 2015 Street Bob offers a range of around 130 miles.
It is worth noting that Harley-Davidson fuel gauges have a reputation for inaccuracy, and owners often rely on trip meters or miles since the last fill-up to determine their remaining range. Additionally, factors such as riding style, road conditions, and wind can significantly affect fuel consumption and, consequently, the actual range achieved.
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Replacing a 3.6-gallon tank with a 5-gallon tank
Harley Davidson motorcycles have different fuel tank capacities, and some models have smaller 3.6-gallon tanks. While some riders are comfortable with this size, others desire a larger fuel capacity for extended riding range. Replacing the 3.6-gallon tank with a 5-gallon tank can be achieved through a few methods, each with its own considerations:
Dealership Installation
The first option is to have a Harley-Davidson dealership perform the installation. Dealerships can provide a comprehensive solution, including a new tank, pump, paint, and labour. However, this option can be quite costly, with estimates ranging from $2,500 to $3,000.
DIY Modification
Alternatively, riders can opt for a more cost-effective do-it-yourself modification. This involves purchasing a 5-gallon primed tank, which typically costs around $600. The fuel pump can be modified by adding hoses and filters, and a $60 sender can be purchased to adapt the pump to the new tank. The instrument cluster may also require adjustments, particularly if the bike's instruments are mounted on the tank.
Aftermarket Solutions
Some riders have expressed interest in aftermarket solutions, but as of 2018, there didn't appear to be any readily available 5-gallon replacement tanks for the Breakout, Street Bob, or Fat Bob models. However, it's worth checking with aftermarket companies to see if options have become available since then.
Fuel Efficiency and Range Considerations
It's important to note that fuel efficiency can vary significantly depending on riding conditions. While some riders report achieving 130 to 170+ miles on 3.5-gallon tanks, others have mentioned that high-speed cruising and headwinds can result in a quicker depletion of fuel. Therefore, upgrading to a 5-gallon tank can provide a notable increase in range, making it a more comfortable choice for long-distance riders.
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The cost of a 5-gallon tank and modifications
The cost of modifying a Harley-Davidson motorcycle to have a 5-gallon fuel tank varies depending on the specific model and the modifications required. For example, a 5-gallon primed tank can cost around $600, but additional expenses may include painting, modifying or replacing the fuel pump, and adapting the instrument cluster. Some models may also require relocation of the California Carbon Canister to remain legal in that state.
One Harley rider reported that their dealer quoted them between $2,500 and $3,000 for a new tank, new pump, paint, and labor. However, other forum users suggested that only some of these expenses were necessary, and that the total cost could be reduced by modifying the existing fuel pump with a hose, filter, and pickup point, and purchasing a $60 sender.
Another rider reported purchasing a 5-gallon fuel kit for their V-Rod for $459, which offered a 54% increase in fuel capacity over the stock tank.
It is important to note that these costs are specific to the models and years discussed, and that modifications may be required for a proper fit. It is recommended to consult with a dealer or mechanic before making any modifications to your motorcycle.
Additionally, it is worth considering the potential impact on fuel efficiency and range when modifying the fuel tank capacity of a motorcycle. While a larger fuel tank can provide increased range, other factors such as riding style, speed, and wind conditions can also affect fuel consumption.
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Harley WRs used 5-gallon tanks in 1939
The Harley WR was a popular motorcycle model known for its performance and durability. It was widely used in off-road racing and endurance competitions during the late 1930s and early 1940s. The 5-gallon fuel tank provided a good range for these types of events, where refuelling stations might be few and far between.
The WR model was a predecessor to the famous Harley-Davidson K model, which was introduced in 1952. The K model featured a larger, more powerful engine and became a favourite among long-distance riders and police departments.
While the 5-gallon tank was standard on the WR model, Harley-Davidson offered a range of fuel tank sizes across their different motorcycle models during this period. For example, the 1936-1939 EL model was available with a 3.5-gallon tank, and the 1941-1946 FL, UL, and EL models featured a 4-gallon tank.
Today, Harley-Davidson continues to offer a range of fuel tank sizes, with options to suit different riding styles and preferences.
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The 5-gallon tank on the 2011 Heritage
The Harley-Davidson Softail is a motorcycle that has been in production since the early 1980s. Over the years, the Softail has undergone various changes and updates, including the fuel tank capacity.
While I could not find specific information about the 2011 Heritage model, I did find that the 2001-2007 Heritage Softail Classic Fat Boy model came with a 5-gallon fuel tank. It is important to note that the fuel tank capacity can vary between different models and years of Harley-Davidson motorcycles.
Some Harley-Davidson models, such as the Breakout and Street Bob, have smaller fuel tanks with a capacity of 3.5 gallons. On the other hand, the Fat Bob model has a slightly larger 3.6-gallon tank. However, most other Softail models are equipped with a 5-gallon fuel tank as standard.
Owners of Harley-Davidson motorcycles with smaller fuel tanks have expressed interest in upgrading to a 5-gallon tank to increase their riding range. Replacing a smaller fuel tank with a 5-gallon tank is possible, but it requires modifications to the fuel pump and instrument cluster, which can be a costly and complex process.
In conclusion, while I could not find specific information about the 2011 Heritage model, it is likely that it came with a 5-gallon fuel tank, given that this was the standard capacity for most Softail models at the time. However, to confirm this information, further research or consultation with a Harley-Davidson dealer or expert would be necessary.
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Frequently asked questions
Harley introduced 5-gallon fuel tanks as early as 1939 for the WRs' long-race models, known as "Daytona" tanks. The shape of these tanks is similar to the first production 5-gallon tanks on the 1965 Electra Glides, which were only produced for one year.
Yes, some Harley models have fuel tanks larger than 5 gallons. For example, the 2002 and 2007 Road King models have 6-gallon tanks, allowing riders to travel over 200 miles per tank.
Yes, it is possible to replace a smaller fuel tank with a 5-gallon tank on certain Harley models. For instance, some Harley owners have discussed replacing the 3.6-gallon tank on 2018 Softail models with a 5-gallon tank. However, this modification may require additional expenses and adjustments, such as modifying the fuel pump or purchasing a new fuel pump assembly.
