Custom Motorcycle Gas Tanks

Shop all of our custom motorcycle gas tanks below.
We also carry motorcycle gas tank accessories like gas caps, bungs, gauges, and prep.

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“Frisco Peanut” Style Gas Tank with Low Tunnel and Early Cam Bayonet Gas Cap Bung - Steel, 1.8 Gallon

Now: $149.99

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6 Gallon Gas Tank with 22mm Petcock Bung - Fits 1984-1999 FXST Harley Davidson Softail & 1986-1999 FLST Fat Bob - Screw-in Style Gas Cap Bungs

Now: $299.99

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“Scalloped” Legacy Gas Tank with Weld-On Mounting Kit - Steel, Custom Mounting Tabs, 3.8 Gallons

Now: $349.99

Out of Stock
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Gas Tank for Harley Davidson Sportster - OEM Style, Unfinished Steel, 2.4 Gallon

Now: $169.99

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“Narrow Mustang” Style Gas Tank with Custom Mounting Tabs - Steel, 2.2 Gallon

Now: $169.99

Out of Stock
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1995-2003 Harley Sportster OEM Gas Tank With Screw-In Style Gas Cap Bung - Steel - 2.25 Gallon Capacity - LEFT SIDE 22mm Petcock Bung - Motorcycle Chopper "Sporty" Bobber Cafe Racer Fuel Cell Petrol

Now: $149.99

Out of Stock
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4 Gallon Gas Tank WITHOUT DASH CUTOUTS for 1982-1994 Harley Davidson FXR w/ 22mm Petcock Bung and Screw-In Gas Cap Bungs

Now: $349.99

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Diamond Gas Tank w/ Screw-In Style Gas Cap Bung - Steel, 3.3 Gallon, Fits 2004-2006 Harley-Davidson Sportster

Now: $299.99

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“Alien Axed Wasp” Style Dual Fill Gas Tank with Custom Mounting Tabs - Steel, 2.2 Gallon

Now: $189.99

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Narrow "Slim Scalloped” Legacy Gas Tank with Custom Mounting Kit - Steel, 2.75 Gallon

Now: $369.99

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1995-2003 Harley Sportster OEM Gas Tank With Screw-In Style Gas Cap Bung - Steel - 2.25 Gallon Capacity - RIGHT SIDE 22mm Petcock Bung - Motorcycle Chopper "Sporty" Bobber Cafe Racer Fuel Cell Petrol

Now: $149.99

Out of Stock
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OEM Style Gas Tank with Early Cam Style Bayonet Gas Cap - Steel, 2.25 Gallon, Fits 1982-1994 Harley Davidson Sporter, 22mm Petcock Bung

Now: $149.99

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Motorcycle Gas Tanks

Upgrade your motorcycle or chopper with help from the custom motorcycle gas tank builders at Billet Proof Designs.

A motorcycle gas tank has the ability to completely change the look of a bike. Here at Billet Proof we have OEM replacement gas tanks that conform to the exact specifications as the original. We also have custom tanks that will look perfect on your build. Whether you’re interested in a Narrow Mustang, a Frisco Peanut Tank, or an Alien Axed Tank, we have what you’re looking for. We have an extensive list of fuel tanks in stock and ready to ship the same day your order is placed. Interested in a custom fuel sight or fuel hose kit and don’t have the means to install it yourself? No problem. Let us know what you want and where you want it installed and we’ll install it for you. Typical turn-around is a week or less for custom work on gas tanks. Give us a call, we’re here to help you.