Best Fat Bob Powersports Gas Caps of 2025

The Chern Yueh Gas Cap is designed to perfectly replace various OEM models for Harley motorcycles, covering models from 1996 to 2019. Made from durable stainless steel, this vented cap ensures a smooth operation for single or dual gas tank setups. Its thoughtful design includes a rubber gasket for a secure fit, which helps prevent leaks. Installation is straightforward, requiring no extra hardware, allowing you to quickly upgrade your bike without hassle. This cap not only enhances functionality but also adds a sleek look to your motorcycle.

The Chrome OEM Style Vented/Non-Vented Dual Gas Tank Caps are sold as a set, including one left-hand threaded cap and one right-hand threaded cap for 1982 and later Harley Davidson 2-Piece Fat Bob Tanks. One cap is vented in both directions to prevent excessive gas tank pressure build up, while the other is not vented. These low profile caps will make for a sleek addition to any tank.

This chromed steel gas cap is a direct replacement for Harley Part # 61102-73, featuring a bayonet style cam and rubber seal. The pressure relief valve on this vented cap works with all Harley models. It fits Late 1973 - 1982 Harley Davidson tanks as well as many other custom tanks.

Billet Gas Cap is a chrome non-vented left thread motorcycle gas cap by Billet Proof Designs. It's a direct replacement for Harley Part # 61103-83A, featuring beautiful chromed steel, nylon threads, and a rubber seal. The pressure relief valve ensures compatibility with all Harley models. With ratchet overrun protection, you won't have to worry about over-tightening. This cap fits 1982 and later Harley Davidson 2-Piece Fat Bob style tanks and many other 2-Piece tanks, offering durability and ease of use to riders.

This set of beautiful Satin Black Steel Gas Caps with bayonet style cam and rubber seal fits late 1973-1982 FL FXS Harley Davidson DUAL CAP tanks as well as many other custom tanks. The vented cap features a pressure relief valve, while the non-vented cap is a standard cap that only features a steel bayonet cam with a rubber seal. Please note that this set will not work with later style screw-in style gas tanks, only CAM/BAYONET STYLE TANKS FL 1973-1982 FXS 1973-1982. Tank is not included.

The Generic Harley Gas Cap is designed to perfectly fit various Harley models, ensuring a seamless installation. Made from lightweight and eco-friendly 6061-T6 aluminum alloy, it promises durability and resistance to corrosion. With a removable vent hose, it allows for quick pressure release during intense rides, enhancing your overall riding experience. Its modern anodized finish not only adds a stylish touch to your motorcycle but also contributes to its long-lasting appearance. This gas cap is an ideal choice for riders who value both functionality and aesthetics.

This set of Dual Chrome "CAM" Bayonet Style Gas Caps is made of steel with a beautiful chrome finish and features a pressure relief valve. The vented cap has a rubber seal and the non-vented cap has a standard steel bayonet cam. These gas caps are designed to fit late 1973-1982 FL FXS Harley Davidson DUAL CAP tanks and are compatible with many custom tanks. They will not work with later style screw-in style gas tanks.

This product is a direct replacement for Harley part # 61102-73 in satin black color. It fits late 1973 - 1982 FL FX XL Harley Davidson tanks as well as many other custom tanks. The vented gas cap has a pressure relief valve that works with all Harley models. The cap is for the right-hand side of a dual or single cap tank.

This Harley Chrome Vented Gas Tank Cap is a direct replacement for Harley Part # 61102-83B. The cap is made of beautiful chromed steel with nylon threads and rubber seal. It is vented with a pressure relief valve that works with all Harley models. The cap also features ratchet overrun protection, which means no worry about over tightening. It fits 1982 and later Harley Davidson tanks as well as many other custom tanks. (Note: DOES NOT FIT '82-'99 2 Piece "Fat Bob" Tanks.)

The XMMT Fuel Tank Cap is designed for select Harley models, offering a perfect fit for your bike’s stock tank fuel gauge. Made from durable billet aluminum with a sleek black finish, it resists rust and maintains a polished look. The low-profile design ensures your bike has a clean and uncluttered appearance, enhancing its aesthetics. With an easy-to-use mechanism, simply push in the cap and turn it to unlock or lock, making refueling a hassle-free experience. Plus, it includes a built-in trim ring to prevent leaks, ensuring your ride stays mess-free.